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156 TOOLS FOR YOUR NEXT TASK

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Choose by what you want to do.

From spreadsheets to document differences, network logs to geographic data—start with the material you have, then follow a focused analysis workflow. Every result should be reviewed in context.

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Choose a task to see four useful tools. Or use the site search above to find anything by name.

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Explore tables

CSV, Excel and visualizations

CSV ViewerData Cleaning StudioAI CSV Insights GeneratorLocal Data Visualizer
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Inspect media

Images, audio and video

Image Forensics StudioEXIF Data ViewerAudio AnalyzerVideo Inspection Studio
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Debug systems

Logs, networks and schemas

HAR ViewerAPI TesterAI Log AnalyzerJSON Schema Studio

156 tools grouped by task.

Data and statistical questions 32 tools

Inspect tables, transform supported datasets, compare JSON and explore statistical assumptions. A chart or validation result does not establish causation or correctness beyond its supported checks.

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CSV Viewer

View CSV and TSV files locally with encoding controls, searchable read-only tables, filters, stable sorting, full-cell inspection, and unchanged source downloads.

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CSV Editor

Edit CSV and TSV locally with search, filters, sorting, bulk edits, undo, optional recovery drafts, keyboard navigation, and UTF-8 downloads. Up to 5 MiB.

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XLSX Viewer

View XLSX worksheets with supported formula calculation, number/date formats, basic styles, search/filter/sort and unchanged source downloads.

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XLSX Editor

Edit XLSX values, supported formulas and basic styles locally, with previewed bulk edits, search/filter/sort and supported-feature export.

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Data Cleaning Studio

Clean local CSV/TSV data with reusable transformation recipes, table previews and column statistics. Save editable projects or export cleaned tables, recipes and a quality summary.

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Local Data Visualizer

Explore CSV, TSV or JSON tables, map columns to charts, and export chart images, CSV data or a self-contained HTML report without uploading your dataset.

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Data Storytelling Studio

Turn supported local tables into chart-based story slides with narrative and source notes. Export interactive HTML, slide images, raster PDF, data CSV or editable JSON.

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Statistics & Probability Lab

Explore probability distributions, seeded sampling, simple regression and supported t-tests locally. Inspect charts and assumptions, then export project JSON, data, reports or a handoff ZIP.

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JSON & CSV Converter

Convert JSON object rows to CSV or CSV to JSON. Choose delimiters, headers, flattening, newline style and optional UTF-8 BOM, with spreadsheet formula protection.

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JSON Formatter & Validator

Format, validate, sort or minify JSON locally. Load files, choose indentation and escape HTML-sensitive characters for JSON intended for script embedding.

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Heatmap & Geographic Analytics Studio

Visualize supported WGS84 CSV/GeoJSON with heat, point, hex and polygon layers. Explore descriptive summaries and export filtered data, map PNG, reports or editable projects locally.

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CSV Insights Generator

Profile supported CSV/TSV tables with deterministic missingness, duplicate, numeric, trend and correlation findings. Inspect flagged records and export charts, data or explainable reports locally.

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Trade Journal Investigator

Review completed-trade CSV/TSV using reported realized P&L, explicit number conventions and evidence-linked rules; add notes/screenshots and export reviewed records or projects.

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Data Schema Mapper

Map CSV/TSV/JSON/JSONL records to a target schema with reviewed field suggestions, bounded transformations and validation; export JSON, JSONL, CSV, issues or mapping settings.

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Database Schema Extractor

Extract a supported SQL schema or infer table fields from structured samples, review candidate relationships, edit an ER diagram and export DBML, Mermaid, SQL, SVG or projects.

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Spreadsheet Formula Detective

Inspect XLSX, XLSM, CSV or TSV formulas, saved values and bounded dependencies; trace resolved references and export review findings.

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Network Graph Analytics Studio

Edit relationship graphs, inspect centrality and connectivity, explore neighborhoods/routes and save graph projects or analysis exports.

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Scientific Graphing Studio

Plot supported equations, parametric curves and measurement data; fit linear/quadratic regressions and export graphs, sampled data or editable projects.

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Local Database Explorer

Inspect and edit local SQLite databases, run bounded SQL, compare schemas and export table/query data or a modified database using a local WASM engine.

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Choropleth Map Builder

Join local region boundaries and tabular values, review match coverage and class breaks, then export a colored map, interactive HTML or project backup.

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Chord Diagram Studio

Edit weighted directed flows, design a chord visualization, review visible balances and reciprocity, and export charts, reports or editable projects.

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Multidimensional Data Explorer

Explore tabular data with filters, parallel coordinates, scatter comparisons and Pearson correlations; export reviewed charts, rows, reports or backups.

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Treemap & Hierarchy Visualizer

Explore and reorganize hierarchical values in treemap, sunburst and tree views; import nested or flat data and export charts, hierarchy CSV or JSON.

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Climate Visualization Studio

Explore local climate observation tables with date and unit mapping, coverage diagnostics, seasonal charts and observed-period anomalies.

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JSON to Code Generator

Infer typed models from JSON or JSON Lines for six languages, review a sample-derived JSON Schema and export source files or a ZIP handoff.

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CSV Pivot Table Maker

Group and aggregate local CSV/TSV data with row/column dimensions, filters and measures, then export full grouped results or a reusable layout.

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GPX Route Analyzer

Explore local GPX tracks, segments and waypoints with route, elevation, speed and pace profiles, and export selected route data.

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KML/KMZ Explorer

Inspect local geographic features, browse inert descriptions and a local coordinate map, then export selected or complete parsed data.

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Probability Distribution Explorer

Explore eleven probability families, bounded probability/quantile queries and seeded sample histograms, and export charts or numerical tables.

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GeoJSON Editor

Draw and edit geographic features on a local canvas, inspect properties and geometry, validate supported GeoJSON structures and export reviewed data.

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GPS Track Editor

Inspect and edit local GPX paths, review simplification and spike suggestions, trim endpoints or shift timestamps, then export reviewed track data.

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PixelOkay Agentic AI

Run a bounded local-model task loop over imported text, CSV and JSON, review tool evidence and approvals, edit notes and save portable checkpoints.

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Document text and changes 16 tools

Compare supported extracted text, read document contents or inspect PDF text/metadata. Extraction is not visual-layout comparison, OCR or tracked-change authoring.

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Document Comparison Studio

Compare two text versions or extract supported DOCX/PDF text for review. Navigate changes, add reviewer notes and export text reports, handoff ZIP or an editable session.

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DOCX Viewer

View DOCX formatting, lists, tables, and embedded images locally. Search document and cell text with match navigation. Exact Word page layout may differ.

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PPTX Viewer

View supported PPTX slides locally with visual previews, literal text search, keyboard navigation and unchanged source downloads.

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Text Diff Checker

Compare two texts by line or word, ignore whitespace or case, load local files and show only changed entries. Copy or download the difference report.

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Extract Text from PDF

Extract PDF text to TXT or Markdown with page ranges and line-break options. Copy or search the result, or enable browser OCR for scanned pages.

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Edit PDF Metadata

View and edit PDF title, author, subject and keywords. Apply metadata presets or clear supported document information, then download a new PDF.

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Document Intelligence Studio

Inspect local image/PDF pages, review text and heuristic layout regions, and edit supported tables. Use optional OCR and export structured data, annotated images or editable projects.

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Handwriting Recognition Studio

Import supported page images, detect or draw line regions and recognize English handwritten lines with optional local TrOCR. Proofread paragraphs and export editable text formats.

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Document Layout Reconstructor

Reconstruct supported image/PDF text, estimated tables and manual image regions in an editable workspace. Review geometry and reading order, then export DOCX, positioned HTML, TXT or project JSON.

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OCR PDF Studio

Process selected PDF pages with Smart or Force OCR, review recognized text and assemble a searchable output with built-in page/text-layer checks. Export PDF, TXT or JSON within supported limits.

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Chat with PDF

Search supported local PDFs for page-linked evidence, extractive summaries and vocabulary comparisons. Review source pages, use optional OCR and export research notes without LLM-generated answers.

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Invoice & Purchase Order Reconciler

Review structured purchase orders, invoices and receipts with column mapping, price/quantity tolerances and evidence-linked exceptions; export review CSV or JSON.

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Vendor Quote Comparison

Extract and review quotation text from text, DOCX, XLSX or text PDFs, correct line groups and commercial terms, then export source-reviewed comparisons or editable projects.

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Document Metadata Inspector

Inspect common PDF, DOCX and image metadata, compare two files and export reviewed reports with default-on best-effort redaction.

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PDF Structure Inspector

Inspect local PDF objects, references, xref evidence and document inventories without rendering pages or executing embedded actions.

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EPUB Inspector

Inspect local EPUB packages, metadata, reading order and resources, preview chapters as inert text and export structural findings.

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Images, motion, color and sound 40 tools

Inspect supported image metadata, palettes, contrast, heuristic track quality, approximate color scopes, audio signals and tuning. Results have tool-specific assumptions rather than measurement certification.

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Metadata Inspector & Remover

Inspect image metadata and remove EXIF, GPS, XMP and comments from JPEG, PNG and WebP locally. Preserve orientation and colour profiles by choice, then download a verified copy.

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EXIF Data Viewer

View camera, lens, exposure, capture dates and GPS tags from local photos. Search EXIF fields and export JSON in your browser without uploading images.

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Color Palette from Image

Extract approximate dominant or vibrant colors from a local image. Set palette size and sampling resolution, copy HEX colors and export CSS, JSON or GPL.

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Color Blindness Image Simulator

Preview images with approximate protanopia, deuteranopia, tritanopia or grayscale filters. Compare the original, adjust intensity and export a local PNG.

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WCAG Color Contrast Checker

Check foreground and background contrast against WCAG AA and AAA. Preview text sizes, choose a contrast target and export your color report locally.

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Image Contact Sheet Maker

Create image contact sheets locally. Arrange photos into labeled thumbnail grids, choose fit and page layout, and download PNG or JPEG pages without uploads.

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Audio Analyzer

Inspect browser-decoded audio or microphone input with waveforms, spectrum views and estimated loudness. Review signal measurements and export reports locally.

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Instrument Tuner

Compare a live microphone pitch with chromatic or instrument tuning targets. Adjust the reference and tolerance, or explore the clearly labeled demo mode.

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Motion Tracking Studio

Track a textured video target, refine manual keyframes and attach supported overlays. Review heuristic quality warnings and export project JSON, position CSV, PNG or supported WebM.

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Video Color Grading Studio

Adjust supported video tone/color controls, preview a look with approximate scopes and import bounded CUBE LUTs. Export grade JSON, LUT, PNG or a supported real-time recording.

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Audio Forensics Studio

Inspect supported audio waveforms, spectra, channels and candidate signal events locally. Add interval annotations and export descriptive findings, charts or editable annotation JSON.

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Video Inspection Studio

Inspect supported video container metadata, streams and timing indicators locally. Preview browser-decodable media, capture frames/contact sheets and export individual or batch metadata reports.

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Image Forensics Studio

Inspect image metadata and supported pixel diagnostics, select a region and compare photographs with limited translation alignment. Export descriptive findings without uploading images.

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Duplicate Image Finder

Review local images for exact byte matches or heuristic visual-similarity groups. Compare candidates, mark files for review and export findings without deleting or modifying originals.

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Voice Delivery Analyzer

Inspect observable voice delivery with local pitch, level, pause and rhythm measurements. Use a matching transcript for rough WPM and export reports without emotion or personality inference.

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AI Speaker Diarization

Annotate speaker turns manually or use optional local segmentation and English transcription. Review provisional labels, unassigned text and timings, then export captions, RTTM or projects.

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Melody Extractor

Estimate a dominant monophonic melody from supported audio using local pitch analysis. Review the contour, edit note timings/pitches and export MIDI, CSV or JSON without neural models.

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Video Localization Quality Studio

Review source and localized subtitle/script tracks for timing, glossary, numbers and reading-speed candidates; edit cues and export subtitles, alignment CSV or review reports.

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Video Content Analyzer

Review sampled visual scenes with editable timestamped notes and optional image-model suggestions; search, split/merge and export reviewed scene reports, captions, chapters or projects.

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Scene Detector

Detect sampled visual changes, edit shot boundaries and notes, then export shot lists, EDL/caption markers, contact sheets, thumbnails or selected silent clips.

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Video Object Tracker

Track manually selected boxes with template matching and optional size adaptation, review lost samples and corrections, then export source-pixel paths, reports, frames or annotated WebM.

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Video Search Engine

Index sampled frames from local videos with CLIP embeddings, search by text, reference image or an indexed frame, and export result markers, stills, contact sheets or indexes.

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Activity Review Studio

Review sampled visual motion or optional pose-based posture estimates, correct timestamped intervals and protect reviewed labels, then export CSV, captions, text or project JSON.

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Continuity Checker

Compare film frames and adjacent shot pairs using visual heuristics, optional object counts, region inspection and human review; save findings, portable previews or CSV reports.

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Human Pose Estimator

Analyze photos or sampled video with on-device pose landmarks, inspect gap-aware trajectories and approximate angles, then export pose/motion/quality data, overlays or projects.

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Video Text Extractor

Read visible on-screen text from sampled video frames or one selected frame, edit timing/text and filtered cue sets, then export OCR captions, text, CSV or JSON.

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Cinematography Analyzer

Inspect stored shot frames with approximate sRGB metrics, manual director annotations and optional subject boxes; export comparisons, contact sheets, reports or embedded-frame projects.

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Best Thumbnail Frame Finder

Rank sampled video frames using visual heuristics, keep favorites/manual captures and edit crop/headlines; export thumbnails, an edited comparison sheet, favorites ZIP or scan JSON.

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Best Take Selector

Compare visual/audio evidence from takes of one scene, optionally inspect limited face cues, adjust provisional ranking and record a separate human final pick; export CSV or review JSON.

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Exposure & False Color Analyzer

Inspect browser-decoded image/video pixels with waveform, parade, histograms, false color and ROI controls; scan sampled clip exposure and export scopes, reports or settings.

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Lottie Animation Previewer

Preview a supported subset of 2D Lottie, inspect and recolor vector layers, and export edited JSON, workspace backups or rendered animation previews.

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Audio Equalizer Studio

Shape locally decoded audio with ten EQ bands, adjustable filter width and preamp, compare original/EQ playback and export WAV or portable settings.

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Video Stabilizer

Estimate sampled 2D camera translation, smooth motion by detected scene, review crop/coverage and record transformed video with browser-supported codecs.

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Audio Silence Remover

Detect candidate quiet gaps in local audio, review and adjust retained pauses, audition the cut plan and export newly encoded WAV or a pause report.

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Image Edge & Contour Extractor

Create local raster edge maps and geometric contour exports with reviewed thresholds, component filtering and transparent output.

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JPEG Repair Studio

Inspect damaged or wrapped JPEG streams, try conservative byte repairs or browser-visible re-encoding, and export candidates with explicit evidence.

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Signal Generator & Oscilloscope

Design synthetic waveform mixtures, inspect time/FFT/XY displays or an optional live microphone view, and export generated signals or graph images.

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Video Codec Inspector

Inspect bounded video-container and stream metadata, retain partial/unsupported fields and export batch findings without uploading or transcoding media.

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Audio Loudness Meter

Analyze local mono/stereo files for loudness, peak estimates and channel diagnostics, compare a gain target and export reviewed measurements.

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Audio Phase Analyzer

Inspect stereo correlation, mid/side energy, balance and mono fold-down through full-file analysis or an optional permission-based live microphone view.

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Requests, captured timings and input events 10 tools

Inspect API responses, HTTP headers, captured HAR network timings or keyboard/pointer events. These tools do not provide a continuous production performance monitor.

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Online API Tester & HTTP Client

Send HTTP requests directly from your browser. Inspect responses, organize collections, use environments and export local workspaces. CORS restrictions apply.

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GraphQL Query & Response Explorer

Send GraphQL queries or mutations to your endpoint with variables and headers. Set request timeout, inspect raw or formatted responses and copy the envelope.

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HTTP Response Header Analyzer

Review pasted response headers locally, inspect advisory security and caching notes, retain repeated values in JSON and download the report.

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HAR Viewer & Network Log Analyzer

Inspect HAR network logs locally. Filter requests, compare timings and response sizes, read captured headers and text, and export a request summary without replaying traffic.

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Keyboard & Pointer Event Tester

Inspect keyboard keys, codes, modifiers and mouse, touch or pen events in a focused test area. Review and export a bounded local event log without uploads.

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API Contract Drift Detector

Compare an OpenAPI contract with supplied JSON, NDJSON or HAR captures, or compare two contract versions; inspect potential risks and export findings or coverage reports.

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DNS Record Explorer

Query selected public DNS resolvers, review record answers and contextual diagnostics, compare providers and export captured results.

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URL Redirect Analyzer

Review redirect chains through an explicitly configured tracing endpoint, inspect status/canonical hints and export results or a labeled simulated example.

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HTTP Cookie Inspector

Inspect pasted Cookie and Set-Cookie headers, review attributes and advisory request scope, decode values for display and export redacted reports.

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API Development Studio

Compose browser-native REST requests, organize collections and environments, inspect bounded responses and run a declarative assertion subset.

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Files, code and validation 32 tools

Compare files, inspect signatures or claims, and run supported syntax, schema and pattern checks. A successful check has the limits stated by that tool.

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File & Folder Compare

Compare two files or folder selections locally. Match relative paths, check exact bytes, filter added, removed, changed and identical files, and export JSON without uploads.

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File Type & Hex Inspector

Identify common file signatures, compare filename extensions and inspect paged hex/ASCII bytes locally. Jump to byte offsets and export reports without uploading files.

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Checksum & Hash Calculator

Calculate SHA checksums for local files or UTF-8 text, compare an expected hexadecimal hash, choose letter case and download the digest without uploading.

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Certificate Information Checker

Inspect PEM and DER X.509 certificates locally. Check subject, issuer, dates, DNS SANs, public keys, extensions and SHA-256 fingerprints without uploading files.

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JWT Decoder & Claim Inspector

Decode a JWT header and payload locally, inspect NumericDate claims as UTC dates and export a clearly unverified report. No token upload or signature claim.

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JSON Structural Diff Checker

Compare JSON values structurally, optionally ignore primitive-array order and export a difference report with unambiguous JSON Pointer paths.

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JSON Schema Studio

Design nested JSON schemas, manage local definitions and compare source changes. Test JSON with the declared Draft 2020-12 subset and export schemas, projects or supported reports.

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JSON Schema Validator

Validate JSON against a schema with Ajv's draft-07-era support. Review detailed errors, try valid and failing examples and export a structured report.

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JSONPath Tester & Query Explorer

Test JSONPath against local JSON, inspect values, paths or pointers and use bounded read-only filters. Load JSON files and limit displayed results.

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JavaScript Regex Tester

Test JavaScript regular expressions in a worker. Inspect matches, groups, replacement and highlights; escape literal text and download a match report.

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SHA Hash Generator

Generate SHA-256, SHA-384, SHA-512 or legacy SHA-1 hashes from text and files. Choose hex, Base64 or Base64URL and choose LF or CRLF text newlines.

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Flowchart from Code

Inspect supported JavaScript/TypeScript source through syntax-derived flowcharts, conservative call maps and relative-import graphs. Adjust layout and export SVG, PNG, Mermaid or a source workspace.

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Design Handoff Inspector

Compare design and implementation screenshots with overlays, pixel differences and ignore regions; optionally recognize text, then export annotated PNG or findings CSV/JSON.

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Log Analyzer

Investigate local mixed-format logs with trace clustering, incident groups, temporary request aliases and time filters; export redacted Markdown, JSON and evidence CSV reports.

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Bug Reproduction Studio

Turn console logs, HAR traces and manually entered reproduction steps into evidence summaries and reviewed bug reports.

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Debug Evidence Sanitizer

Redact recognizable credentials and optional personal data in local debugging text; review findings and export sanitized text, JSON or issue Markdown.

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Code Reviewer

Review and edit local source files with heuristic findings, filter by severity and export Markdown, JSON, CSV, SARIF or a workspace ZIP.

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Sitemap Visualization Studio

Inspect imported XML, text or gzip sitemaps as a hierarchy, compare replacement snapshots and export advisory URL-quality reports.

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Hex Editor Studio

Inspect and edit local binary bytes, search and replace exact patterns, compare files and export original bytes or a selected range.

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Dependency Graph Explorer

Import and edit declared dependency relationships, explore impact and cycle groups, compare a baseline and export graph projects or structural reports.

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Browser Privacy Inspector

Run an opt-in current-origin inspection of observable permissions, storage and cookie metadata; compare scans and export redacted JSON or CSV.

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Certificate Inspector

Inspect public certificate bundles, compare fields and SAN names, and verify supported signatures against supplied issuer keys without network lookups.

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File Integrity Studio

Hash batches of local files with SHA-256/SHA-512, compare publisher digests or imported manifests and export checksum manifests and verification reports.

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Computer Network Simulator

Build an educational topology, inspect simplified IPv4 forwarding and packet paths, and export reachability, routing and topology reports.

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Archive Inspector

Browse ZIP/ZIP64 entries, preview supported local content and verify size/CRC before extracting files, rebuilding a selected ZIP or saving to a folder.

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ZIP Repair & Recovery

Inspect damaged ZIP metadata, scan recoverable local records, review CRC and size evidence, and export recovered files or a rebuilt ZIP.

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File Signature Inspector

Identify likely file formats from bounded magic-byte and container evidence, review extension differences and export settled inspection results.

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File Structure Explorer

Inspect local binary bytes and supported format structures, scan bounded embedded signatures or strings, and export read-only structural evidence.

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Font Metadata Inspector

Inspect declared font metadata, mappings and bounded SFNT/WOFF tables, compare collection faces and export reviewed findings.

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Font Subsetter

Select Unicode coverage and optional variable-font axes, request local HarfBuzz subsetting and export a validated font candidate, CSS or report.

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Unicode Inspector

Inspect Unicode code points, grapheme boundaries and directional controls, compare normalization forms and export text diagnostics.

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Web Manifest Builder

Edit a web app manifest, validate supported fields against a deployment URL and generate local icon assets and integration snippets for export.

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Calculations and estimates 26 tools

Work through arithmetic, units and entered estimate scenarios. Screening estimates and numerical results depend on their stated inputs and assumptions.

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Age Calculator

Calculate age between two dates, total calendar days and your next birthday. Choose how a February 29 birthday is observed in non-leap years.

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Adult BMI Screening Calculator

Calculate adult BMI from height and weight in metric or imperial units. Inspect screening categories, optional estimates and download a local result report.

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Adult BMR & Energy Scenario Calculator

Estimate adult resting energy with Mifflin-St Jeor or optional body-fat input, compare formulas and explore activity/goal scenarios without treating them as prescriptions.

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Meal Calorie Calculator

Estimate meal calories, protein, carbohydrate and fat by serving size. Add custom label values, adjust portions and compare with your own daily target.

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Scientific Calculator

Calculate trigonometry, logarithms, powers, roots and factorials with DEG/RAD/GRAD modes, memory and session history in a browser scientific calculator.

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Fraction Calculator

Calculate fractions and mixed numbers, simplify answers and convert decimals. See common-denominator steps and explicit errors for invalid denominators.

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Decimal to Fraction Converter

Convert terminating and repeating decimals into simplified fractions and mixed numbers. See exact steps and distinguish exact values from approximations.

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Percentage Calculator

Calculate percentages, percentage change, reverse percentages and discounts. Compare six modes with formulas and clear handling of zero bases.

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Unit Converter

Convert measurement units across length, mass, temperature, area, volume, speed, data and fuel economy with precision settings and a full conversion table.

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Roman Numeral Converter

Convert numbers to Roman numerals and Roman numerals to numbers. Validate standard subtractive notation and see a place-value breakdown and reference chart.

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Options Strategy Scenario Lab

Model entered option legs and stock positions with expiry payoff, theoretical pre-expiry scenarios and reconciled contributions; export charts, CSV breakdowns or JSON.

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Depth of Field Calculator Pro

Estimate near/far focus, hyperfocal distance and field of view from entered optics; plan two-subject or foreground-to-infinity setups and compare or back up saved scenarios.

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Camera Lens Simulator

Compare two assumed camera fields of view against a still reference, inspect non-rendered focus-depth estimates and export A/B comparisons, diagrams, CSV or linked settings.

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Construction Quantity Estimator

Estimate rectangular-room floor and wall quantities, tile/paint/concrete/skirting orders and entered supplier costs; compare waste scenarios and export schedules.

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Structural Analysis Visualizer

Model educational 2D pin-jointed trusses, inspect linear force/displacement/reaction results and hypothetical load scaling, and export reports or projects.

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Machine Learning Playground

Explore bounded two-feature clustering, classification and regression experiments with training-only normalization, held-out metrics and cross-validation.

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Supply Chain Simulator

Edit a simplified distribution network and single-product demand assumptions, compare deterministic scenarios and export daily, route and cost reports.

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Traffic Flow Simulator

Build a simplified road network, adjust signals and demand, compare seeded scenario runs and export road metrics or network illustrations.

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Warehouse Layout Simulator

Design a warehouse grid, racks and docks, inspect simplified pick routes and traversal heatmaps, and compare sampled-demand scenarios.

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Airport Operations Simulator

Explore fictional airport arrivals, departures, gates and runway queues; step the simplified simulation, review operations and export a paused snapshot or reports.

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Ecosystem Simulator

Explore a simplified two-population predator-prey model, compare hypothetical interventions and parameter sensitivity, and export trajectories or project snapshots.

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Operating System Simulator

Explore textbook CPU scheduling, partition allocation, page replacement and resource-safety models; compare policies and export teaching diagrams or projects.

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Subnet & IP Calculator Pro

Calculate IPv4/IPv6 ranges, plan bounded VLSM allocations with reservations, compare networks and export exact CIDR summaries or address plans.

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Vector & Matrix Calculator

Explore bounded matrix operations, linear systems and vector geometry, inspect numerical plots and export calculated results or an unfinished workspace.

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Contour Map Generator

Turn rectangular elevation grids into contour lines and bands, inspect interpolated elevations and export visual or source-coordinate geometry.

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Coordinate Conversion Studio

Convert supported WGS 84 coordinates singly or in bounded CSV batches, inspect partial results and export CSV or GeoJSON with an offline map preview.

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Use the results with their assumptions

Analysis results depend on supplied inputs, extraction quality, supported checks and model assumptions. Captured HAR timings are not continuous performance monitoring. Statistical output, metadata inspection and syntax checks are not certification or proof of correctness.

Keep project or progress backups when a tool offers them. Browser storage and download behavior vary by tool and browser.

Explore more in Developer Tools or Editors.