All tools
Every tool on Tuliq, in one place — 80 so far, all free, all running right in your browser.
Developer Tools
Formatters, validators, and small utilities you reach for mid-project — no package install, no context switch, just paste and go.
JSON Formatter & Validator
Format, validate, and minify JSON instantly — see exact error line numbers, no signup, nothing uploaded.
Base64 Image Converter
Convert an image to Base64, or Base64 back into a downloadable image — automatic format detection, nothing uploaded.
Hash Generator
Generate MD5, SHA-1, SHA-256, and SHA-512 hashes from text or a file — instantly, in your browser.
HMAC Signature Calculator
Compute or verify an HMAC-SHA256/384/512 signature — for testing webhook signatures against a secret key.
RSA & ECDSA Keypair Generator
Generate an RSA or ECDSA key pair in your browser — standard PEM output, copy or download.
Bcrypt & Argon2 Hasher & Verifier
Hash or verify a password with Bcrypt or Argon2id — the algorithms real backends use for password storage, not a plain hash.
UUID Generator
Generate random UUIDs (v4) instantly — one at a time or in bulk.
JWT Decoder
Decode a JWT's header and payload instantly — every claim readable, expiry checked, nothing uploaded.
Regex Tester
Test a regular expression against text live — every match highlighted in place, capture groups broken out.
Unix Timestamp Converter
Convert a Unix timestamp to a date, or a date to a timestamp — relative time, ISO 8601, and UTC all at once.
JSON ↔ CSV Converter
Convert a JSON array of objects to CSV, or CSV back to JSON — nested objects flatten and un-flatten automatically.
YAML ↔ JSON Converter
Convert YAML to JSON, or JSON back to YAML — comments, nested mappings, and block scalars all handled correctly.
JSONPath Tester
Query JSON with a JSONPath expression and see every match live — resolved path and value, side by side.
JSON Schema Validator
Validate JSON data against a JSON Schema live — every violation listed with its exact path and reason.
HTTP Status Code Lookup
Search every standard HTTP status code by number, name, or keyword — instant, plain-language explanations.
HTML Entity Encoder/Decoder
Encode text to HTML entities, or decode entities back to text — named and numeric references both supported.
JWT Generator
Build and sign a JWT from a JSON payload and secret — HS256, HS384, or HS512, updates live.
CSV Viewer / Inspector
Browse a CSV as a table and see per-column stats — inferred type, empty count, unique count, min/max.
CSV to SQLite Query Engine
Load one or more CSVs into a real in-browser SQLite database and query them with actual SQL, including JOINs across files.
Parquet Viewer
View a Parquet file's schema and data as a browsable table — every compression codec supported.
Cron Expression Generator/Parser
Turn a cron expression into a plain-English description and its next 5 actual run times.
SQL Formatter
Format SQL into a readable, consistently-indented statement — 8 dialects supported.
SQL Minifier
Strip comments and collapse whitespace to shrink a SQL file — string and identifier literals always preserved exactly.
Favicon Generator
Generate a real favicon.ico plus Apple/Android app icons and a manifest.json snippet — from one image.
Geospatial & ML Tools
Bounding box conversion, dataset utilities, and format tools built for people who actually work with YOLO, COCO, and Pascal VOC daily.
Bounding Box Format Converter
Convert a YOLO, COCO, Pascal VOC, or VIA CSV annotation file into any of the other three, instantly — one file in, one file out, nothing uploaded.
Image Annotator
Draw bounding box annotations on your images and export as YOLO, COCO, Pascal VOC, or VIA CSV. Autosaves locally — right in your browser.
Annotation Visualizer
See your YOLO, COCO, Pascal VOC, or VIA annotations rendered directly on your images — a quick visual check before you trust a dataset.
GeoJSON / KML / GPX / CSV Viewer
Upload a GeoJSON, KML, GPX, or lat/lon CSV file and see it rendered on an interactive map instantly — no signup, nothing uploaded.
EXIF GPS Extractor
Upload photos to see every EXIF tag they carry — camera, date, and GPS — with a one-click map for any geotagged photo. Nothing is uploaded; everything is read directly in your browser.
Geo Format Converter
Convert GeoJSON, KML, GPX, CSV, WKT, TopoJSON, or a Shapefile .zip into any other format, instantly — one file in, one file out, nothing uploaded.
Object Detector
Automatically detect objects in a photo with an on-device AI model, then export as YOLO, COCO, Pascal VOC, or VIA CSV.
YOLO Dataset Health Checker
Scan a YOLO dataset for missing/orphan labels, bad class IDs, and malformed or out-of-bounds boxes — folder, .zip, or files, nothing uploaded.
YOLO Class Manager
Rename, merge, or remove classes across a whole YOLO dataset — live impact preview, exports a corrected .zip. Nothing uploaded.
YOLO Dataset Splitter
Seeded, reproducible train/val/test splits for a YOLO dataset, with per-class balance and duplicate-leakage checks before export.
YOLO Dataset Converter
Convert a whole YOLO dataset to COCO or Pascal VOC in one pass — preserves train/val/test structure, verifies the result. Nothing uploaded.
YOLO Annotation Diff
Compare two YOLO dataset versions — added, removed, and changed annotations, with a visual Before/After/Overlay review. Nothing uploaded.
COCO Dataset Health Checker
Validate a COCO annotation file — cross-reference integrity, duplicate IDs, degenerate and out-of-bounds boxes, missing images. Nothing uploaded.
Pascal VOC Dataset Health Checker
Validate a folder of Pascal VOC XML annotations — malformed objects, degenerate and out-of-bounds boxes, missing images. Nothing uploaded.
Geo QA & CRS Inspector
Inspect a geo file's coordinate reference system and check its geometry — out-of-range coordinates, unclosed rings, wrong winding order. Nothing uploaded.
Geo Conversion Loss Inspector
Convert GeoJSON, KML, GPX, CSV, WKT, or Shapefile to another format and see exactly what geometry types and properties didn't survive. Nothing uploaded.
Geo Dataset Compare
Compare two geo files — feature count, geometry types, property schema, and which shared properties got emptier. Nothing uploaded.
Geo Reprojection & Repair Workbench
Reproject a file to WGS84 (UTM zone or a pasted CRS definition) and auto-fix unclosed rings and wrong winding order. Nothing uploaded.
GPX Cleaner
Check a GPX track for duplicate points, backward timestamps, long gaps, and implausible speed jumps — and remove exact duplicates. Nothing uploaded.
Image Tools
Annotate, convert, and process images entirely in your browser — nothing you upload here ever leaves your device.
Image Color Palette Extractor
Extract a dominant color palette from any image — HEX, RGB, and HSL, each with its share of the image.
SVG Viewer
Preview an SVG safely, and see its width, height, viewBox, and file size — scripts stripped before rendering.
QR Code Decoder
Decode a QR code from a photo or screenshot — the detected code outlined on the image, nothing uploaded.
Image Compressor (Compress to KB/MB)
Compress a photo to an exact size — 20KB, 50KB, 100KB, 1MB, or a custom target — for forms, exams, and uploads.
Image Resizer
Resize a photo to exact pixels, a percentage, or a preset — passport photo, Instagram post, and more.
Image Format Converter (incl. HEIC to JPG)
Convert between PNG, JPEG, and WebP — including HEIC/HEIF (iPhone photos) to JPG, PNG, or WebP.
Image Cropper
Crop a photo to a square, 16:9, or custom area — plus a circular crop for profile pictures.
Image Watermark Adder
Add a text watermark with a live preview — single position or repeated tiled pattern.
QR Code Generator
Generate a QR code for a URL, Wi-Fi network, contact card, email, phone, or SMS — free, no expiry.
Image Filters (Black & White, Sepia, Blur)
Apply black & white, sepia, or invert filters, plus brightness, contrast, and blur — live preview.
Visualization Tools
Turn a CSV, a JSON array, or a diagram description into a chart or rendered visual — instantly, entirely in your browser.
CSV Chart Generator
Turn a CSV into a bar, line, area, scatter, pie, or histogram chart — pick columns, download as PNG.
Scatter Plot Generator
Plot two numeric columns against each other with a correlation coefficient and trend line, computed automatically.
Heatmap Generator
Color-code a matrix you already have, or compute and visualize a correlation matrix from raw data.
Box Plot Generator
Draw a box plot for one or more numeric columns — median, quartiles, IQR, and outliers computed automatically.
Mermaid Diagram Editor
Write Mermaid syntax and see it render live — flowcharts, sequence, class, state, and ER diagrams.
Graphviz / DOT Viewer
Render DOT graph syntax with the real Graphviz layout engine — 8 layout algorithms, live preview.
PDF Tools
Merge, split, convert, and edit PDFs entirely in your browser — nothing you upload here is ever sent to a server.
PDF Merger
Combine multiple PDFs into one — reorder files first, download a single merged file.
PDF Splitter
See every page as a thumbnail and click where to cut — no page-range syntax to learn.
PDF Organizer
Reorder, rotate, and delete PDF pages visually — thumbnails rendered from your actual file.
PDF to Image Converter
Export every page of a PDF as a PNG or JPG — adjustable resolution, zipped if multi-page.
Image to PDF Converter
Combine PNG or JPEG images into a single PDF — one image per page, reorderable before converting.
PDF Text Extractor
Extract all selectable text from a PDF — copy it or download as .txt.
PDF Metadata Editor
View and edit a PDF's Title, Author, Subject, Keywords, and Creator.
PDF Watermark Adder
Stamp text like "CONFIDENTIAL" or "DRAFT" diagonally across a PDF's pages — adjustable size, opacity, and angle.
PDF Page Numbers Adder
Add page numbers to a PDF — custom format, position, starting number, and page range.
PDF Redactor
Permanently black out sensitive content — redacted pages are flattened to an image, not just painted over.
PDF Signature Adder
Draw, type, or upload a signature, then drag it straight onto the page to place it.
PDF Viewer
View a PDF page by page in your browser — zoom, jump to page, no account, no upload.
PDF Outline Viewer
Browse a PDF's bookmark/table-of-contents structure and jump straight to any section.
PDF Blank Page Remover
Automatically find and remove blank pages — review and override before anything is removed.
PDF Compressor
Pick a preset and see a live before/after preview — no guessing what quality setting to use.
Offline Downloadable Tools
Download a plain folder, double-click to open — no install, no account, no internet connection needed at any point.
Image Annotator (Offline)
Download the Image Annotator as a plain folder — double-click to open, no install, works with zero internet connection.
CV Dataset Workbench (Offline)
Tuliq Offline's first tool: scan a real folder on disk for YOLO dataset problems — no browser file-count limits, no upload.
Local AI Tools
Real machine learning models — OCR, image classification, speech transcription — running entirely on your own device. The model downloads once; every file after that never leaves your browser.
Local OCR (Image to Text)
Extract text from a photo, screenshot, or scan using an on-device OCR model — no upload, no server.
Local Image Classifier
Identify what's in a photo — 1,000 categories, on-device, ranked top-5 with confidence scores.
Local Audio Transcriber
Transcribe speech from an audio file entirely on-device — no upload, no server. The largest, slowest tool on the site, disclosed upfront.
Local Duplicate Image Finder
Scan a real folder for duplicate and similar images — perceptual hash plus AI embeddings — and copy matches into new subfolders. Chrome/Edge only.