Printing & Paper
Sewing Pattern Print Preflight
Inspect pattern page sizes and screen/print size-layer defaults locally, compare paper fit, record physical calibration and export a print-review checklist.
Free browser-based utilities
Useful tools.
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ToolQuill is a growing collection of focused online tools. They are fast, private where it matters, and ready when you need them.
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Featured tools
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Systems & Forensics
OpenSSH authorized_keys Auditor
Audit public-key fingerprints, duplicate authorization policies, ordered forwarding and PTY restrictions, forced commands and CA principal conditions locally with line-level reports.
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Woodworking
32 mm Cabinet Boring Layout
Plan and mirror cabinet line rows, hinge cups, mounting plates and runner holes; review collisions and export dimensioned SVG/DXF, coordinates and 1:1 templates locally.
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Databases
SQL Foreign-Key Migration Planner
Analyze PostgreSQL table and foreign-key DDL locally; find cyclic groups, review phased creation and drop order, and export source-backed dependency reports.
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Photography
XMP Sidecar Merge Workbench
Compare XMP metadata locally, resolve rating and keyword conflicts, choose complete Camera Raw settings and export a deterministic proposed sidecar with review reports.
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Industrial Automation
PLCopen XML Portability & Diff
Inventory POUs, datatypes, dependencies and vendor extensions in local TC6 XML; compare old/new exports with file/line evidence and export complete review reports.
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Scientific Data
Microplate & Serial Dilution Planner
Allocate 96/384-well samples, controls and standards with seeded blocks and exclusions; export plate maps and ordered dilution worklists locally.
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Email & Archives
TAR Safety Auditor
Audit TAR paths, link chains, duplicate destinations, sparse metadata and permissions locally; export evidence and a conservative extraction-review manifest.
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PKI & DevOps
Terraform State Share Sanitizer
Audit version-4 Terraform state locally for sensitive values and credentials; inspect resource addresses and providers, and export a redacted review copy with replacement proof.
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Electronics & GPS
ROM Splitter & Interleaver
Split even/odd or N-way ROM lanes, interleave or concatenate images, swap bytes and words, fill EPROM sizes, and verify CRC32/SHA checksums locally.
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Developer Tools
Protobuf Schema Breaking-Change Diff
Compare proto2/proto3 schemas locally: tag reuse, removals, types, presence, maps, oneofs, reservations, enum values and RPC signatures with wire, JSON and API impacts.
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Video & Camera
OBS Scene Collection Auditor
Audit an OBS scene collection locally: media paths, browser-source URLs, plugins, fonts and devices, broken items, leaked tokens and stream keys, a migration checklist, and a redacted copy.
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Localization
iOS String Catalog QA & Diff
Check Xcode .xcstrings catalogs locally: locale coverage and states, %@ placeholder parity, plural and device variations, substitutions, stale keys, and a diff between versions.
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Localization
Android strings.xml QA
Check Android res/values-* strings locally: missing and extra keys, printf placeholder parity, plural quantities per locale, apostrophe escaping, untranslated values, and coverage.
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Linux Packaging
Debian .deb Preflight
Inspect Debian packages without installing: control metadata, dependencies, maintainer scripts, conffiles, file permissions, symlinks, capabilities and review findings.
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PKI & DevOps
GitHub Actions Matrix Previewer
Preview every job a GitHub Actions strategy.matrix creates: Cartesian product, include and exclude with provenance, resolved matrix variables, duplicates, and the 256-job limit.
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PKI & DevOps
GitHub Actions Reusable-Workflow Auditor
Trace workflow_call chains locally: effective GITHUB_TOKEN permissions, escalation errors, secrets passed or inherited, inputs and outputs, risky triggers, and script injection.
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Embedded Linux
Device Tree Overlay Auditor
Inspect DTB and preprocessed DTS locally, decode reg/ranges cell widths, find dangling phandles, resolve ordered overlays and fixups, and compare the resulting tree.
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Video & Camera
FCPXML Media Reference Auditor
Audit Final Cut Pro XML locally: media paths, missing or duplicate references, proxy-only assets, frame rates, roles, third-party titles and effects, and a portability checklist.
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Civil Engineering & Surveying
Level Book Reducer
Reduce BS/IS/FS level books locally with HI and rise/fall methods, check recorded RLs and benchmarks, inspect misclosure, distribute corrections, and export a full printable book.
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Developer Tools
JAR Signature & Manifest Auditor
Verify a JAR locally: manifest syntax, entry digests, .SF section digests, PKCS#7 signatures and certificates, unsigned or tampered entries, Main-Class, and sealed packages.
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Systems & Forensics
pg_hba.conf Connection Matcher
Test which pg_hba.conf line a PostgreSQL connection matches, see the auth method and rule trace, find shadowed or overlapping rules, CIDR nesting, and risky trust or cleartext entries.
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Electronics Manufacturing
Reflow Profile Analyzer
Map measured thermocouple CSV logs locally, inspect ramp, soak, time above liquidus and peak, compare editable process limits, and export annotated charts and PDF/CSV reports.
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Machining & CNC
G-code Travel-Limit Checker
Check CNC G-code against machine soft limits, work offsets, tool lengths and keep-out boxes locally; find rapids below safe Z, per-tool extents, and every violating line on a path view.
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Electronics Manufacturing
Excellon ↔ Gerber Drill Auditor
Check Excellon drill files against Gerber outline and copper locally; detect origin, unit and format mismatches, annular rings, edge clearance, slots, stacked holes, tools, and aspect ratio.
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Music Production
Ableton ALS Dependency Auditor
Inspect Live Set batches locally, inventory tracks and VST/AU/Max devices, reconcile sample paths against selected files, compare project dependencies, and export a portability report.
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Fabrication
Square-to-Round Transition Pattern
Develop centered or offset square/rectangle-to-round transitions by triangulation; see true lengths, split into 1, 2 or 4 pieces, and export 1:1 SVG, DXF, CSV, JSON, and tiled PDF patterns.
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Industrial Automation
IO-Link IODD Process-Data Decoder
Decode raw IO-Link process-data bytes with a device IODD locally; see named values, scaling, units, enums and flags, build output bytes from editable fields, and inspect the bit map.
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Music Production
SFZ Sample & Keymap Auditor
Preflight SFZ instruments locally; resolve sample paths, includes and defines, find missing or miscased files, map key/velocity overlaps and gaps, flag unknown opcodes, and rewrite portable paths.
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PKI & DevOps
Docker Compose Merge Auditor
Merge ordered Compose YAML locally, trace variable resolution and overrides, inspect active profiles and port overlaps, compare models, and export masked reports.
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PKI & DevOps
iCalendar Recurrence & DST Auditor
Expand supported ICS/RRULE schedules locally, compare UTC and local starts, inspect gaps and repeated clocks, reconcile RDATE/EXDATE, and export occurrence evidence.
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Digital Preservation
PCB Sub-Array Optimizer
Search PCB matrices and rotations across master panels with gaps, rails, borders, and assembly limits; compare yield and utilization, then export SVG, DXF, CSV, or JSON locally.
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Email & Archives
Python Wheel Integrity Auditor
Inspect wheel metadata and tags, verify every RECORD hash and size, expose missing or unrecorded members, and inventory entry points and native binaries locally.
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Email & Archives
.gitattributes Simulator
Resolve Git attribute patterns, nested-source precedence, binary and user macros, per-attribute winners, conditional EOL policies, conflicts, and directory-aware archive exclusions across a repository inventory.
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Gaming
Grade Stake & Drainage Planner
Reduce rod readings or ground elevations into connected design runs, branch grades, cut/fill, target rods, string-line measure-downs, profile charts, and a printable stake sheet.
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Fabrication
SSH Config Effective Settings Simulator
Resolve common OpenSSH client Host and Match conditions, virtual Include fragments, first-value precedence, accumulating identities and forwards, runtime tokens, provenance, and two-host differences.
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Fabrication
Sudoers Permission & Precedence Tester
Analyze common sudoers aliases, ordered includes, Defaults, run-as matching, command tags, last-match allow or deny results, password behavior, risk findings, batch tests, and policy-version differences.
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Electronics Manufacturing
Gerber Stencil Area-Ratio Auditor
Inspect RS-274X solder-paste flashes locally; calculate aperture area, perimeter, area and aspect ratios, classify configurable thresholds, rank weak apertures, and map them by board position.
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Crafts
ASC MHL Verifier
Parse legacy MHL and ASC MHL histories locally, stream supported media hashes, reconcile chain order, and report verified, mismatched, missing, extra, and unsupported records.
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Embedded Linux
Quilt Backing & Seam Optimizer
Compare vertical and horizontal backing layouts with washed usable width, repeat alignment, directional-print constraints, center-seam alternatives, inventory fit, cost, and an exact cut schedule.
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Email & Archives
CODEOWNERS Coverage Auditor
Test last-match-wins ownership across a repository inventory, expose invalid, dead, and fully shadowed rules, audit location priority and self-protection, and plan changed-file reviewers.
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Fabrication
systemd Timer Auditor
Test bounded OnCalendar schedules, timezone and DST behavior, randomized-delay and accuracy windows, persistent catch-up evidence, and generated timer/service units.
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Fabrication
Logrotate Dry-Run Simulator
Expand supplied virtual includes and preview common time/size triggers, growth, archive names, compression, delayed compression, retention, overlaps, and before/after directory listings.
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Fabrication
EVTX Integrity Auditor
Verify local EVTX headers, chunk and record-data CRC32 values, event-record envelopes, identifier continuity, byte ranges, and structural candidates in chunk slack.
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Audio & Broadcast
APK Signing Continuity Auditor
Compare two local APKs for package and version continuity, v1/v2/v3/v3.1 signing evidence, certificate fingerprints, scheme changes, and update risks.
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Drones & RC
PKCS#12 / PFX Inspector
Inspect local P12/PFX structure, password-integrity evidence, encryption compatibility, certificates, private-key presence, and key-to-certificate relationships.
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Drones & RC
Kubeconfig Merge Collision Auditor
Simulate ordered first-file-wins kubeconfig merging, expose shadowed names, broken contexts, exec plug-ins, embedded secrets, TLS risks, and certificate dates.
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Crystallography & CIF
MBOX Archive Auditor
Inventory local MBOX messages and attachments, audit bounded MIME structure, identify exact and Message-ID duplicate evidence, and export selected raw messages as EML.
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Text & Unicode
Slicer Settings Diff
Compare readable settings embedded in two plain-text G-code or 3MF files, with normalized keys, grouped differences, and exact source evidence.
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Music Production
Gauge Block Stack Solver
Search an actual gauge-block inventory for minimal target-height or sine-bar stacks, respecting quantities and exposing nominal error, conservative tolerances, and angular error.
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BIM & BCF
SVG Laser Process & Scale Preflight
Audit SVG process colors, stroke and fill intent, open and duplicate paths, unsupported content, and 72/96-DPI physical scale; export a guarded basic-vector copy.
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BIM & BCF
Sheet-Metal Multi-Bend Flat Pattern
Calculate multi-bend sheet-metal flat lengths and bend-line positions from outside dimensions, thickness, radii, angles, and K-factor; export SVG, DXF, CSV, and JSON.
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Ham Radio
Scala Microtuning Inspector
Validate Scala SCL scales and KBM keyboard mappings locally; inspect cents, ratios, repeated degrees, MIDI frequencies, interval plots, auditioning, and portable reports.
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Music Notation
Betaflight CLI Diff Comparator
Compare Betaflight CLI diff all exports locally by firmware, target, profile, logical setting, and subsystem with exact line evidence and portable reports.
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Text & Unicode
Klipper Input Shaper CSV Visualizer
Inspect processed Klipper resonance CSVs locally, plot PSD axes, identify peaks, compare captures, and audit supplied shaper-response curves.
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Office Documents
CIF Occupancy & Symmetry Checker
Check CIF cell geometry, atom-site occupancies, algebraic symmetry operations, special-position multiplicities, expanded positions, and label references locally.
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Localization
BCFZIP Integrity Auditor
Audit BCF 2.1 and 3.0 packages locally for ZIP integrity, topics, comments, related issues, viewpoints, snapshots, camera geometry, assets, and IFC component GUIDs.
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Crafts
OpenTimelineIO Timeline Auditor
Audit native OTIO JSON timelines locally, visualize tracks and editorial timing, check media-reference portability against an optional folder, and compare two cuts semantically.
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Civil Engineering & Surveying
MusicXML Interchange Preflight
Preflight MusicXML and compressed MXL locally for package discovery, part/measure relationships, IDs, rhythmic cursors, instruments, and assets; repair only deterministic package metadata.
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Mobile Signing & PKI
SQL Dump Inspector & Splitter
Stream large plain-text SQL dumps locally; inventory tables and statement byte ranges, extract selected table statements, and split without cutting SQL or PostgreSQL COPY blocks.
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Scientific Data
POTA / SOTA ADIF Builder
Map CSV or TSV contact columns, validate POTA and SOTA activation metadata, derive unambiguous bands, and export reviewable ADIF locally without silent guesses.
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Scientific Data
Cabrillo Log Checker
Audit Cabrillo V2/V3 headers, contest QSO fields, chronology, exchanges and probable duplicates locally; convert sufficiently complete ADIF records without guessing missing data.
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Mass Spectrometry
Office OOXML Package Auditor
Inspect DOCX, XLSX, PPTX, and macro-enabled OOXML packages locally for links, hidden sheets or slides, broken names, comments, revisions, macros, OLE objects, custom XML, and metadata.
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Data Engineering
PO / POT Catalogue QA
Audit gettext headers, plural rules, indexed translations, format placeholders, fuzzy and untranslated entries, obsolete records, and key drift between PO and POT catalogues locally.
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Data Engineering
TMX Memory Auditor
Audit TMX structure, encodings, languages, pairs, metadata and inline codes; separate duplicate units from conflicting translations; and export a conservative cleaned memory locally.
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Data Engineering
XLIFF Segment Auditor
Audit XLIFF 1.2 and 2.x versions, locales, IDs, segment states, inline codes, placeholders, original-data and subflow references, and translation changes locally.
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Publishing
LandXML Alignment & Surface Auditor
Audit LandXML units, coordinates, alignment geometry and stationing, design/sample profiles, TIN points/faces, named references, and structural consistency locally.
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Electronics Manufacturing
OPC UA NodeSet Auditor
Audit NodeSet2 namespace indexes, models, dependencies, aliases, nodes, references, missing targets, collisions, and semantic differences locally.
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Metrology & Calibration
mzML Run Metadata Inspector
Inspect mzML run duration, spectra, MS levels, retention times, precursors, observed m/z, instruments, chromatograms, binary-array metadata, TIC/BPC traces, and structural errors locally.
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Legacy Data
EDF / BDF Header Validator
Validate EDF, EDF+, BDF and BDF+ headers, channels, sample rates, calibration ranges, record sizes, durations, annotations, timelines, and bounded signal overviews locally.
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Leatherworking
QGIS Project Source-Path Auditor
Inspect QGS and QGZ projects locally; map layers to redacted data sources, compare relative paths with a selected folder, and expose nonportable paths and connection risks.
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Leatherworking
Shapefile Bundle Health Auditor
Audit SHP geometry records, SHX offsets, DBF schemas and row counts, PRJ metadata, CPG encoding, bundle naming, bounds, and safely derived SHX indexes locally.
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Industrial Automation
IDML Package Preflight
Inspect IDML ZIP structure, design-map components, stories, spreads, placed links, fonts, styles, resources, object references, paths, and export differences locally.
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Legacy Data
NIfTI Header & Orientation Auditor
Audit NIfTI-1 and NIfTI-2 dimensions, datatypes, image bytes, extensions, scaling, qform and sform matrices, orientation, handedness, and transform conflicts locally.
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Mobile Signing & PKI
Avro OCF Inspector
Inspect Avro Object Container File metadata, writer schemas, codecs, blocks, sync markers, record counts, sample records, schema differences, and recoverable regions locally.
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Industrial Automation
EPUB Package Preflight
Inspect EPUB ZIP structure, package metadata, manifest, spine, navigation, media types, internal links and path case, then preview narrowly scoped safe repairs.
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Music Production
Measurement Uncertainty Budget
Build Type A and Type B uncertainty budgets with distribution conversion, sensitivity coefficients, correlations, effective degrees of freedom, expanded uncertainty, and exports.
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GIS & Geospatial
CUE Sheet + Audio Auditor
Audit CUE structure, FILE references, tracks, indexes, pregaps, selected WAV, AIFF and FLAC durations, path case, and portable rewrites locally.
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Audio & Broadcast
iOS Provisioning Inspector
Decode mobileprovision, provisionprofile, and embedded IPA profiles locally; inspect teams, App IDs, expiration, entitlements, devices, certificates, fingerprints, and differences.
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Electronics Manufacturing
PROFINET GSDML Inspector
Inspect GSDML XML locally; trace DAP, module and submodule relationships, slot/subslot rules, cyclic I/O sizes and parameter records, then audit an explicit configuration map.
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Electronics Manufacturing
EtherCAT ESI / SII Inspector
Inspect EtherCAT ESI XML and optional SII EEPROM images locally; audit identity, SyncManagers, RxPDO/TxPDO entries, bit offsets, overlaps, references, and cross-format consistency.
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Ham Radio
REAPER RPP Dependency Auditor
Parse REAPER RPP projects locally; inventory media, nested projects and plug-ins; check selected files and path portability; compare versions; and export an archive manifest.
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GIS & Geospatial
BWF / RF64 Batch QC Auditor
Audit WAV, BWF, RF64, and BW64 chunk structure, audio format, bext and iXML metadata, durations, start times, and stem-to-stem consistency locally.
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GIS & Geospatial
WAV Header Crash Repair
Inspect zero, stale, or invalid RIFF/WAV, BWF, RF64, and BW64 length fields locally; preview exact deterministic size patches and download a metadata-preserving repaired copy.
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Text & Unicode
Klipper Config Linter
Lint printer.cfg and selected include files locally; find misspelled options, unresolved dependencies, duplicate definitions, pin syntax problems, and probable pin conflicts.
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Digital Preservation
PCBA CPL Rotation & Offset Fixer
Normalize KiCad, EasyEDA, DipTrace, EAGLE-style, Altium-style, and generic placement tables; preview explicit rotation, offset, and bottom-side corrections before JLCPCB CPL export.
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Digital Preservation
BOM ↔ CPL Cross-Checker
Compare BOM and CPL tables locally for missing or extra placements, DNP conflicts, duplicate references, quantity errors, and footprint differences.
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Scientific Data
ADIF Log Validator
Parse ADI and ADX logs locally; audit syntax, fields, dates, times, bands, frequencies, modes, duplicates, and preview only deterministic repairs.
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Leatherworking
World File Georeference Auditor
Parse TFW, JGW, PGW, WLD, and related six-line affine transforms; visualize pixel-edge footprints; audit scale, rotation, skew, orientation, and optional PRJ metadata locally.
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Machining & CNC
SQLite Rollback Journal Inspector
Audit SQLite rollback-journal headers, sector alignment, original-page records, sparse checksums, duplicate pages, tails, and an optional matching database locally.
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Legacy Data
GFF3 Feature Inspector
Audit GFF3 columns, coordinates, percent-encoded attributes, ID/Parent graphs, CDS phase continuity, sequence regions, and embedded FASTA bounds locally.
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Legacy Data
FASTA Index Auditor
Generate and verify byte-exact FASTA .fai rows, wrapping, newline widths, duplicate names, sequence content, and 1-based region extraction locally.
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Legacy Data
SAC Waveform Audit
Audit SAC v6/v7 binary headers, endian order, data-section size, sample statistics, timing, station metadata, and double-precision footer locally.
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Legacy Data
SP3 Orbit Inspector
Audit SP3-c/d satellite and epoch coverage, declared cadence, missing orbit and clock values, prediction flags, and structural findings locally.
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Machining & CNC
SQLite SHM Inspector
Audit SQLite -shm header copies, native-order checksums, checkpoint counters, frame-to-page mappings, hash pointers, and an optional matching WAL locally.
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Legacy Data
VOTable Inspector
Audit VOTable resources, tables, fields, units, UCDs, IDs, references, streams, and inline TABLEDATA rows locally without uploading astronomical catalogs.
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Machining & CNC
SQLite WAL Inspector
Verify SQLite WAL headers, salts, cumulative checksums, frame boundaries, commit markers, recovery-valid prefixes, page histories, and an optional database header locally.
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Legacy Data
miniSEED 3 Record Inspector
Audit miniSEED 3 record boundaries, CRC-32C, source IDs, times, sample and payload declarations, extra-header JSON, ordering, gaps, and overlaps locally.
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Legacy Data
DDI Codebook Inspector
Audit DDI Codebook study metadata, file descriptions, variables, questions, categories, groups, IDs, references, languages, links, and documentation coverage locally.
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Legacy Data
PDS4 Product Label Inspector
Audit PDS4 product identity, file areas, selected-file sizes and MD5 checksums, array and table ranges, local identifiers, references, namespaces, and schema declarations locally.
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Printing & Paper
CMSIS-SVD Register Map Inspector
Resolve CMSIS-SVD device defaults, inheritance, arrays, clusters, and absolute addresses, then audit address blocks, registers, fields, resets, enumerations, overlaps, and interrupts locally.
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Construction
OpenDocument Package Inspector
Audit ODT, ODS, ODP, and related ODF ZIP integrity, mimetype rules, manifest coverage, XML structure, package references, encryption, signatures, and macro indicators locally.
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Machining & CNC
Binary Plist Structure Inspector
Audit bplist00 trailers, offset and object tables, typed records, container references, shared values, cycles, unreachable objects, and byte ranges locally.
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Machining & CNC
OLE/CFB Structure Inspector
Audit OLE compound-file headers, FAT, DIFAT, MiniFAT, directory trees, stream chains, shared sectors, unreachable entries, and orphan allocation locally.
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Construction
TIFF Structure Inspector
Audit classic TIFF and BigTIFF headers, IFD graphs, tags, value locations, strip and tile ranges, geometry, overlaps, and physical file bounds locally.
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Construction
EAD Finding Aid Inspector
Audit EAD4, EAD3, and EAD 2002 finding-aid XML, component hierarchy, identification data, IDs, references, dates, links, and descriptive coverage locally.
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Construction
PREMIS Metadata Inspector
Audit PREMIS 3 objects, events, agents, rights statements, semantic identifiers, xmlID links, relationships, sizes, formats, and fixity declarations locally.
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Construction
METS Package Inspector
Audit METS 1.x XML, fileSec locators, selected package files, sizes, supported SHA fixity, IDs, IDREFs, metadata containers, and structural maps locally.
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Construction
WARC Structure & Digest Auditor
Audit WARC 1.0/1.1 record framing, required fields, IDs, references, HTTP payload boundaries, segments, and declared SHA digests locally.
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Legacy Data
PDS3 Label Inspector
Audit detached NASA PDS3 ODL labels, record pointers, IMAGE and TABLE layouts, column bounds, and selected data-file sizes locally.
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Design & Color
PJL / PCL Print Stream Inspector
Inspect real PJL and PCL print-stream bytes locally: job wrappers, language switches, settings, page controls, binary payload lengths, and device-sensitive commands.
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Design & Color
JDF Job Ticket Inspector
Audit classic JDF 1.x job metadata, process nodes, resource pools, IDs, rRef links, quantities, and referenced locations locally without fetching files.
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Construction
BagIt Package Validator
Validate an unpacked BagIt 1.0 package locally: declaration, manifest completeness, safe paths, SHA fixity, tag manifests, and Payload-Oxum.
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Legacy Data
NetCDF Classic Inspector
Audit CDF-1 and CDF-2 dimensions, attributes, variables, record structure, offsets, padding, and physical file bounds from a bounded local prefix.
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Machining & CNC
QuickBooks IIF Inspector
Audit IIF headers, transaction blocks, amount balance, dates, duplicate signatures, source lines, and accounting references locally before a QuickBooks Desktop import.
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Machining & CNC
MARC 21 Record Inspector
Audit binary MARC record boundaries, Leaders, Directories, fields, encodings, tags, indicators, subfields, and duplicate control numbers locally.
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Printing & Paper
IPC-D-356A Netlist Inspector
Audit bare-board test records, nets, component pins, access declarations, feature geometry, and coordinates locally, then compare PCB revisions.
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Printing & Paper
KiCad DRC Report Comparator
Review KiCad PCB DRC JSON reports locally, group violations and exclusions, map reported positions, and compare with a baseline.
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Printing & Paper
CANopen EDS / DCF Inspector
Audit CANopen device identity, object lists, dictionary entries, subobjects, datatypes, access rights, and decoded RPDO or TPDO mappings locally.
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Design & Color
PPD Printer Description Inspector
Audit PPD identity, UI choices, defaults, constraints, paper geometry, CUPS filters, and inert option commands locally without installing a driver.
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Printing & Paper
IBIS Model Inspector
Audit IBIS headers, components, pins, model references, package parasitics, ramps, and IV or waveform tables locally before official validation and simulation.
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Databases
CGATS Measurement Inspector
Validate CGATS and IT8 tables, declared dimensions, patch rows, sample IDs, Lab, XYZ, device channels, and spectral sampling locally.
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Databases
Image Transparency Checker
Check whether an image is truly transparent, inspect soft edges, and download its alpha mask.
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Databases
SVG ViewBox Inspector
Preview SVG paths, calculate bounds, and copy a viewBox fitted to your shapes.
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Linux Packaging
Compound Miter Calculator
Calculate miter and blade-bevel settings for tapered boxes, polygons, crown molding, and two-board joints.
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Embedded Linux
Knitting Gauge Calculator
Convert knitting gauge into stitch and row counts, fit pattern repeats, and check the finished size.
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Linux Packaging
Cut List Optimizer
Fit repeated parts into boards, bars, pipes, or trim with kerf, stock limits, costs, and clear cutting layouts.
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Design & Color
Paper Weight Converter
Convert GSM, grade-specific basis lb, and cut-sheet M-weight; estimate sheet and ream weight.
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Woodworking
Unicode & Hidden Character Inspector
Reveal invisible characters and bidi controls, inspect code points, and selectively clean text with a preview.
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Crafts
Shutter Angle & Flicker Calculator
Convert shutter angle, speed, and frame rate; find whole-light-cycle exposures to test under 50/60 Hz lighting.
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Printing & Paper
NMEA Parser & Checksum Lab
Inspect GPS sentence fields, validate or calculate checksums, convert coordinates, and export a batch report.
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Crafts
SMPTE Timecode Calculator
Convert timecode and frames, measure In/Out durations, and conform mixed-rate clip lists with CSV export.
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Crafts
CMX 3600 EDL Validator
Audit CMX 3600 event syntax, timecodes, cuts, transitions, source and record durations, track gaps, overlaps, comments, and M2 motion context locally.
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Databases
Image DPI & Print Size Checker
Check effective PPI, preview crop and bleed, and compare print sizes from an image or pixel dimensions.
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Crafts
Video Bitrate & File Size Solver
Estimate video file size, solve a bitrate or maximum duration for a delivery limit, and plan upload time or speed.
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Text & Unicode
3D Print Fit & Size Calculator
Fit separate X/Y/Z and outside/hole calibration models from measured prints; solve CAD dimensions and shaft-hole clearance.
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Crafts
Timelapse Interval & Storage Planner
Plan timelapse shot interval, frame count, playback length, photo storage, and capture-time exposure margin.
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Linux Packaging
Arc Radius & Rise Layout Calculator
Solve an arc from any two of chord span, rise, and radius; get layout stations and tiled 1:1 print sheets.
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Design & Color
Book Spine & Cover Layout Calculator
Plan paperback spine width, full cover size, folds, safe zones, and artwork pixels from final pages and trim.
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Embedded Linux
Cross-Stitch Fabric & Floss Planner
Size a stitched chart and fabric cut, compare Aida/evenweave counts, and estimate skeins from full crosses by color.
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Printing & Paper
Modbus RTU Frame & CRC Lab
Build common RTU requests, validate or repair CRC-16, decode captured frames, and calculate serial timing.
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Printing & Paper
Modbus Register Map Planner
Validate CSV/TSV register maps, normalize PDU addresses, find overlaps and gaps, and build bounded FC01–FC04 polling blocks locally.
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Linux Packaging
Tube Notching Template Generator
Calculate an offset round-tube saddle and export station depths, full-size SVG, or tiled 1:1 wrap sheets.
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Linux Packaging
Cone Flat Pattern Generator
Develop a cone, frustum, or cylinder from finished dimensions; export coordinates, full-size SVG, or tiled 1:1 print sheets.
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Electronics & GPS
Bolt Circle & G-code Generator
Calculate indexed bolt-circle coordinates, spacing, and a review-first G81 drilling-cycle snippet for common mills.
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Video & Camera
MTU & MSS Tunnel Calculator
Stack PPPoE, GRE, WireGuard, VXLAN, IP-in-IP, or custom overhead and solve inner MTU, required carrier size, MSS, UDP, and ping payloads.
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Video & Camera
BDP & TCP Window Calculator
Size TCP receive windows and window scaling from bandwidth and RTT; compare link, window, and packet-loss throughput ceilings.
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Video & Camera
DHCP Option 121/249 & 43 Tool
Encode and decode classless static routes and vendor TLVs, inspect exact byte layouts, and generate raw DHCP server snippets.
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Text & Unicode
Filament Spool Remaining Calculator
Estimate filament by spool weight and tare or wound-coil geometry, convert grams to metres, reserve a safety margin, and check a sliced job.
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Linux Packaging
Wood Movement Calculator
Estimate across-grain width change from USDA species data, ring orientation, and moisture content; compare seasonal range and center-fixed slot travel.
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Embedded Linux
Candle Fragrance & Batch Calculator
Weigh wax and fragrance for each vessel and a whole batch; compare load bases, allow for pour loss, and check ingredients on hand.
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Linux Packaging
Segmented Ring & Bowl Planner
Plan multi-ring trapezoid cut lists, miter angles, turning allowances, kerf-aware board lengths, and tapered edge-joined staves.
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Printing & Paper
Antenna Wavelength & Element Length
Calculate exact free-space wavelength, editable dipole/vertical/loop starting lengths, frequency-edge comparisons, and a separate coax VF quarter-wave length.
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3D Printing
Minecraft Stack & Shulker Calculator
Convert item counts into stacks, slots, and shulker boxes; plan mixed inventories and check free carrying slots.
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3D Printing
Minecraft Nether Coordinate Converter
Convert Overworld and Nether X/Z coordinates, choose block rounding, check portal alignment, and estimate travel distance.
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3D Printing
Schematic Material Delta Planner
Compare Litematic, Sponge schematic, or structure NBT revisions and export added-block, stack, and shulker-equivalent procurement checklists.
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Design & Color
Booklet Imposition Calculator
Generate sheet-by-sheet front and back page order for saddle-stitch booklets or fixed gathered signatures, including blanks and RTL binding.
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Electronics & GPS
G-code Arc IJK/R Calculator
Solve and validate G2/G3 arcs across G17, G18, and G19 planes; compare IJK and signed-R geometry, sweep, length, and helix travel.
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Databases
SVG Transform Matrix Calculator
Parse SVG transform lists, inspect order and cumulative matrices, invert the result, transform points and bounds, and verify the geometry visually.
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Databases
SVG Path Transform Flattener
Bake an SVG transform list into path coordinates, normalize commands, convert arcs to bounded cubic segments, and compare the geometry visually.
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Woodworking
Mojibake & Encoding Repair
Inspect original bytes, compare likely decodings, undo common UTF-8 mojibake, check BOMs, newlines and CSV structure, and export a reviewed UTF-8 repair.
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Electronics & GPS
Lathe Change-Gear Solver
Search your physical change gears for simple, idler, and compound thread-cutting trains; rank pitch error and cumulative drift.
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Electronics & GPS
LinuxCNC Tool Table Inspector
Validate tool.tbl entries, duplicate tools and pockets, offsets, diameters, and lathe fields; compare measurements and export a reviewed normalized table.
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Electronics & GPS
Grbl Settings Auditor
Audit classic Grbl 1.1 settings, decode masks, find value and dependency issues, review axis motion values, and compare a baseline locally.
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Printing & Paper
JTAG SVF Inspector
Validate SVF command syntax, TAP paths, scan vectors, masks, padding, clock settings, and RUNTEST workload locally without executing JTAG.
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Electronics & GPS
True Position Pattern Calculator
Inspect multi-feature hole or pin patterns with RFS/MMC/LMC bonus, size checks, pass/fail margins, CSV output, and a normalized tolerance-zone plot.
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Networking
Cable Drum Capacity Calculator
Estimate drum capacity or remaining cable, solve a required flange diameter, inspect layers and turns, and check cable mass assumptions.
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Printing & Paper
Motorola S-Record Validator
Validate S0–S9 records and checksums, inspect address ranges, find gaps and overlaps, verify counts and entry points, and export reviewed binary data.
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Printing & Paper
Intel HEX Merge/Split Workbench
Validate Intel HEX records and checksums, map absolute addresses, expose gaps and conflicting overlaps, then merge, relocate, split, or regenerate reviewed firmware locally.
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Printing & Paper
Firmware Memory Map Compare
Compare Intel HEX, Motorola S-record, and raw binaries by resolved address; validate containers, map changed ranges, and inspect bytes locally.
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Printing & Paper
GNU ld Map Analyzer
Measure mapped region usage, rank output sections and object contributions, visualize placement, and compare two common GNU ld map files locally.
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Printing & Paper
UF2 Firmware Inspector
Validate UF2 blocks, sequence coverage, flags, family IDs, and flash ranges locally; inspect metadata and extract a bounded flat binary.
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Printing & Paper
U-Boot uImage Inspector
Verify legacy uImage header and data CRC32, decode target metadata, inspect multi-file component boundaries, and extract reviewed payload bytes locally.
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Printing & Paper
U-Boot FIT Inspector
Validate FIT/FDT structure, resolve configurations and component data, compare supported per-image hashes, inventory signatures, and extract reviewed bytes locally.
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Printing & Paper
STM32 DfuSe Inspector
Validate DfuSe prefixes, targets, elements, address ranges, USB metadata, and whole-file CRC32, then extract reviewed element bytes locally.
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Printing & Paper
MCUboot Image Inspector
Decode MCUboot v2 headers, flags, versions, protected and unprotected TLVs, compare supported image hashes, and extract exact stored regions locally.
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Woodworking
Fixed-Width to CSV Parser
Suggest, drag, and enter fixed-width column boundaries; name fields, preview rows, save layouts locally, and export reviewed CSV.
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Machining & CNC
EBCDIC File Inspector
Compare CP037, CP500, CP1047, and CP1140 locally; inspect hex and decoded bytes, test record widths, and export strict conversions.
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Machining & CNC
COBOL Copybook Layout Inspector
Calculate PIC, USAGE, OCCURS, and REDEFINES byte positions, then inspect EBCDIC, COMP-3, binary, and floating-point record fields locally.
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Electronics & GPS
Drill Point & Depth Planner
Calculate drill point length, then program blind-hole, breakthrough, or tap drill depth with chamfer lead and chip clearance.
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Gaming
Rafter & Roof Geometry
Calculate common-rafter, birdsmouth, regular hip/valley, framing-angle, tail, ridge, and theoretical jack-rafter geometry.
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Linux Packaging
Cabinet Face-Frame Layout
Lay out row-specific openings, rails and center stiles; size overlay or inset fronts; visualize the frame; and export its cut list.
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Woodworking
JSONL / NDJSON Validator
Stream and validate JSON Lines locally; find exact bad lines, invalid UTF-8, duplicate keys, schema drift, and safe repair candidates.
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Embedded Linux
Weaving Warp & Weft Planner
Plan width in reed, warp ends, compact denting repeats, warp length, picks, weft yardage, shrinkage, take-up, waste, and optional yarn weight.
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Design & Color
PDF Page-Box Inspector
Inspect MediaBox, CropBox, BleedBox, TrimBox, and ArtBox locally; trace inherited/default values, compare pages, and visualize boundaries.
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Design & Color
EPS/PostScript DSC Inspector
Audit EPS and PostScript DSC headers, bounding boxes, pages, resources, byte-counted data, trailers, and structural blocks locally.
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Woodworking
CSV to SQL Generator
Parse CSV locally, review names and inferred types, control NULL handling, and generate escaped INSERT statements for four SQL dialects.
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Linux Packaging
Drawer Box & Stack Calculator
Divide a cabinet opening into equal or graduated fronts and boxes, apply exact slide clearances, visualize the stack, and export a cut list.
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Industrial
Leather Belt Layout & Template
Plan a measured belt blank, buckle fold and mirrored fasteners, adjustment holes, tip geometry, and true-size SVG end templates.
Browse
Tool categories
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Databases
Private browser tools for PostgreSQL DDL foreign-key dependencies, cycle detection, phased table creation, and drop-order planning with source evidence.
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Linux Packaging
Inspect Debian packages locally: control metadata, dependencies, maintainer scripts, conffiles, archive paths, links and permissions.
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Embedded Linux
Local tools for device-tree structure, register addresses, phandle references, overlay resolution, and hardware-description preflight.
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Design & Color
Practical browser-based tools for CGATS color measurements, colors, images, SVG geometry and transforms, and visual design.
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Woodworking
Practical calculators for 32 mm cabinet line boring and hinge-cup layouts, cabinet frames and drawer stacks, wood movement, joints, optimized cuts, arcs, segmented bowls, tube notches, and flat patterns.
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Crafts
Straightforward calculators for quilt backing and seam layouts, weaving warps and weft, knitting gauge, cross-stitch fabric and thread, candle batches, and handmade projects.
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Printing & Paper
Sewing pattern PDF layer, scale and print preflight, PJL/PCL stream, JDF ticket, and PPD driver checks, PDF and PostScript inspection, paper-stock conversion, print-job planning, and layout tools.
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Text & Unicode
Diagnose encodings, inspect hidden characters, validate structured records, and make deliberate CSV, SQL, and text conversions.
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Video & Camera
Practical video tools for OBS scene-collection dependencies and privacy, FCPXML media-reference portability, ASC MHL and legacy media-fixity verification, OpenTimelineIO interchange, CMX 3600 edit lists, media-reference portability, timecode, bitrates, and camera planning.
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Electronics & GPS
Local browser tools for ROM splitting, interleaving and EPROM checksums, CMSIS-SVD register maps, IPC-D-356A netlists, KiCad DRC reports, CANopen device descriptions, IBIS models, JTAG SVF vectors, Modbus maps, GPS, linker maps, Intel HEX, and firmware containers.
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3D Printing
Private browser tools for slicer-setting comparison, Klipper configuration and resonance-data checks, filament inventory, print planning, dimensional calibration, accuracy, and part fit.
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Networking
Planning and byte-audit tools for DHCP options, MTU, MSS, tunnel overhead, bandwidth-delay product, TCP windows, throughput ceilings, and network path delay.
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Machining & CNC
G-code travel-limit and work-envelope checks, coordinate, GD&T inspection, Grbl and LinuxCNC configuration, circular-arc, change-gear, layout, and code-planning tools for machining and CNC setup tasks.
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Gaming
Private Minecraft schematic comparison, material procurement, inventory, portal-coordinate, and travel-planning tools.
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Industrial
Transparent planning calculators for cable drums, reels, wound materials, capacity, remaining inventory, and handling checks.
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Legacy Data
Private browser tools for SQLite rollback journals, WAL and SHM sidecars, Apple binary plists, OLE/CFB containers, QuickBooks IIF transactions, MARC 21 records, COBOL layouts, legacy encodings, and mainframe data.
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Construction
Auditable layout tools for grade stakes, drainage profiles, cut/fill, roof geometry, rafters, framing angles, and printable field measurements.
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Leatherworking
Measured leathercraft planners for straps, belts, hardware placement, hole layouts, and printable workshop templates.
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Scientific Data
Private browser tools for microplate allocation and serial-dilution planning, auditing EDF/BDF, SAC and miniSEED signal files, NIfTI headers, GFF3 feature graphs, FASTA indexes, SP3 orbits, VOTable catalogs, DDI codebooks, PDS labels, scientific metadata, and storage bounds.
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Digital Preservation
Private browser tools for OpenDocument packages, TIFF structure, EAD finding aids, PREMIS metadata, METS packages, WARC web archives, preservation bags, file fixity, archival relationships, and auditable integrity checks.
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GIS & Geospatial
Private browser tools for QGIS project portability, layer data-source paths, Shapefile bundle integrity, CRS metadata, world-file affine georeferencing, raster footprints, extents, and sidecar diagnostics.
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Ham Radio
Private browser tools for ADIF and Cabrillo validation, POTA/SOTA spreadsheet conversion, contest logs, contact consistency, duplicate review, and conservative normalization.
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Electronics Manufacturing
Private browser tools for measured reflow profiles, Excellon drill and Gerber alignment, PCB array and master-panel optimization, solder-paste Gerber and stencil-ratio screening, PCBA BOM/CPL reconciliation, placement normalization, and manufacturing handoff.
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Audio & Broadcast
Private browser tools for CUE sheets, audio-asset paths and timing, WAV header recovery, Broadcast WAV, BWF, RF64, metadata, stem consistency, and delivery quality control.
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Music Production
Private browser tools for Ableton Live Set dependencies and plug-ins, SFZ sample dependencies and keymaps, Scala microtuning scales and keyboard maps, media paths, nested sessions, version comparison, and portable archive planning.
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Industrial Automation
Private browser tools for PLCopen XML portability and dependency diffs, IO-Link IODD process data, PROFINET GSDML and EtherCAT device descriptions, module topology, fieldbus identity, process-data mapping, and engineering preflight.
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Mobile Signing & PKI
Private browser tools for Android APK signing continuity, Apple provisioning profiles, application identities, certificates, entitlements, and release-signing diagnostics.
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Metrology & Calibration
Auditable browser tools for gauge-block and sine-bar setup, measurement uncertainty budgets, calibration calculations, contribution analysis, and technical reporting.
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Publishing
Private browser tools for IDML and EPUB package structure, publication metadata, stories, spreads, links, fonts, styles, reading order, resource relationships, and preflight.
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Data Engineering
Private browser tools for SQL dumps, data-container framing, embedded schemas, compression blocks, record structure, diagnostics, extraction, and recovery evidence.
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Mass Spectrometry
Private browser tools for mzML run metadata, acquisition timing, spectra, chromatograms, instrument configurations, binary arrays, and structural quality checks.
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Civil Engineering & Surveying
Private browser tools for civil and surveying exchange files, coordinate metadata, alignments, profiles, stationing, surfaces, level books, benchmark closure, and relationship preflight.
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Localization
Private browser tools for iOS String Catalogs, Android strings.xml placeholders and plurals, gettext PO/POT catalogues, XLIFF and TMX interchange files, translation memories, locale metadata, plural rules, placeholders, duplicates, conflicts, and release-quality evidence.
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Office Documents
Private browser tools for inspecting OOXML document packages, relationships, metadata, hidden content, review history, active content, and deterministic cleanup.
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Music Notation
Private browser tools for MusicXML and compressed MXL package structure, part and measure relationships, rhythmic interchange checks, assets, and deterministic package repair.
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BIM & BCF
Private browser tools for BIM issue-exchange packages, BCF topics, viewpoints, snapshots, IFC component references, relationships, and delivery integrity.
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Crystallography & CIF
Private browser tools for crystallographic CIF syntax, unit cells, occupancies, symmetry operations, atom-site relationships, and bounded expansion diagnostics.
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Drones & RC
Private browser tools for Betaflight CLI configuration comparison, firmware evidence, profiles, filters, rates, receivers, modes, motors, failsafe, GPS, and flight-controller review.
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Fabrication
Auditable browser tools for square-to-round transition patterns, SVG laser process and scale preflight, sheet-metal flat patterns, bend allowances, bend-line layouts, and fabrication drawing exports.
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Email & Archives
Private browser tools for TAR path, link and sparse-archive safety, MBOX mailbox inventory, MIME structure, attachments, duplicate evidence, archive diagnostics, and message export.
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PKI & DevOps
Private browser tools for Terraform state sharing and secret-exposure review, GitHub Actions matrix expansion, reusable-workflow permissions and secrets, Docker Compose merging and interpolation, kubeconfig merge behavior and credential exposure, certificate containers, encryption compatibility, identity evidence, expiry review, and cautious export.
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Systems & Forensics
Private browser tools for PostgreSQL pg_hba.conf connection matching and shadowed rules, logrotate policy timelines, sudoers permissions, SSH client effective settings, systemd schedules, operating-system artifacts, event-log structure, and forensic preflight.
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Developer Tools
Private browser tools for JAR signature and manifest integrity, Python package integrity, Git attributes, EOL and archive policies, repository ownership, rule precedence, coverage gaps, and developer workflow diagnostics.
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Calendaring & Time Zones
Private browser tools for iCalendar recurrence expansion, timezone provenance, daylight-saving gaps and repeated clocks, schedule exclusions, and auditable occurrence reports.
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Photography
Private browser tools for XMP sidecar conflicts, ratings, labels, keywords, Camera Raw settings and deterministic metadata merge review.