Calabi Labs · Guide · 2026-06-22
Show hn i built 184 free browser tools pdf image dev ai tasks no
184 Free Browser Tools for PDF, Image, Dev, AI & Tasks — No Signup
What You Searched For
You wanted to see 184 free browser-based tools covering PDF processing, image manipulation, developer utilities, AI-powered features, and productivity tasks — all no-download, no-install, no-signup tools running directly in your browser.
Here they are.
📄 PDF Tools (37 tools)
| Category | Tools |
|---|---|
| Convert | PDF to JPG, PDF to PNG, PDF to Word, PDF to Excel, PDF to PowerPoint, PDF to Text, PDF to HTML, PDF to PDF/A |
| Compress | PDF Compress Small, PDF Compress Medium, PDF Compress High Quality |
| Split & Merge | PDF Split, PDF Merge, PDF Extract Pages, PDF Remove Pages, PDF Rotate, PDF Reorder |
| Edit | PDF Unlock, PDF Lock, PDF Watermark, PDF Header/Footer, PDF Page Numbers, PDF Flatten |
| View & Info | PDF Metadata, PDF Accessibility Check, PDF Linearize, PDF Compare, PDF Repair |
| Optimize | PDF Descreen, PDF Grayscale, PDF Invert Colors, PDF Crop, PDF Trim Bleeds |
| Extract | PDF Image Extractor, PDF Text Extractor, PDF Form Data Export, PDF Bookmarks Extract |
| Create | Images to PDF, Word to PDF, Excel to PDF, HTML to PDF, URL to PDF |
| Sign | PDF Signature, PDF Initials, PDF Annotation |
🎨 Image Tools (41 tools)
| Category | Tools |
|---|---|
| Convert | PNG to JPG, JPG to PNG, WEBP to PNG, HEIC to JPG, SVG to PNG, BMP to PNG, TIFF to JPG, RAW to JPG |
| Resize | Image Resize, Image Scale, Image Crop, Image Aspect Ratio Change, Image Canvas Resize |
| Compress | JPEG Compress, PNG Compress, WEBP Compress, GIF Compress, Image Quality Adjust |
| Edit | Image Rotate, Image Flip, Image Mirror, Image Deskew, Image Perspective Correct |
| Effects | Image Grayscale, Image Sepia, Image Invert, Image Threshold, Image Equalize |
| Color | Image Brightness, Image Contrast, Image Saturation, Image Vibrance, Image Color Balance |
| Filters | Image Blur, Image Sharpen, Image Noise Reduce, Image Vignette, Image Glow |
| Transform | Image Background Remove, Image Background Replace, Image Border Add, Image Shadow Add |
| Extract | EXIF Data View, Image Color Picker, Dominant Color Extract, Image Histogram |
| ICO | PNG to ICO, JPG to ICO, Image to Favicon, Multi-Size ICO Generate |
| Create | Screenshot to Image, Color Picker Image, Gradient Generator, Pattern Generator |
💻 Developer Tools (38 tools)
| Category | Tools |
|---|---|
| Code Formatters | JSON Formatter, JSON Minify, JSON Validate, JSON Beautify, JSON Compare |
| Encoders | Base64 Encode, Base64 Decode, URL Encode, URL Decode, HTML Encode, HTML Decode |
| Hashing | MD5 Hash, SHA-1 Hash, SHA-256 Hash, SHA-512 Hash, CRC32 Checksum |
| Converters | JSON to YAML, YAML to JSON, CSV to JSON, JSON to CSV, XML to JSON, JSON to XML |
| Validators | Regex Tester, CSS Validator, HTML Validator, JavaScript Lint, Color Code Validator |
| Generators | UUID Generator, Slug Generator, Hash Generator, Password Generator, Random String |
| Web | URL Parser, DNS Lookup, User Agent Parser, HTTP Headers View, Cookie Parser |
| Colors | HEX to RGB, RGB to HEX, HSL to RGB, Color Picker, Color Scheme Generator |
| Fonts | Font Preview, Google Fonts Explorer, CSS Font Stack Generator |
| SQL | SQL Formatter, SQL Minify, SQL Table Builder |
| APIs | JWT Decoder, JWT Encoder, UUID Decoder, Cron Expression Parser |
| Other | Lorem Ipsum Generator, Placeholder Image, Barcode Generator, QR Code Generator |
🤖 AI Tools (35 tools)
| Category | Tools |
|---|---|
| Image AI | AI Image Upscale, AI Image Denoise, AI Face Enhance, AI Background Remove, AI Object Remove |
| Text AI | AI Text Summarize, AI Paraphrase, AI Grammar Check, AI Tone Changer, AI Content Expander |
| Chat | AI Chatbot, AI Code Assistant, AI Translation, AI Language Detection, AI Sentiment Analysis |
| OCR | Image to Text (OCR), PDF OCR, Handwriting OCR, Screenshot OCR, Document Scanner |
| Generation | AI QR Code, AI Barcode, AI Pattern Generator, AI Color Palette, AI Gradient Generator |
| Analysis | Image Similarity, Face Detection, Object Detection, Text Analysis, Keyword Extractor |
| Enhancement | Photo Retouch, Image Colorize, Image Style Transfer, Image Cartoonizer, Image Sketch Effect |
| Productivity | AI Meeting Notes, AI Email Writer, AI Reply Generator, AI Post Generator |
✅ Task & Productivity Tools (33 tools)
| Category | Tools |
|---|---|
| Files | File Merger, File Splitter, File Renamer, File Counter, Folder Structure Visualizer |
| Text | Word Counter, Character Counter, Line Sorter, Duplicate Line Remover, Text Diff Viewer |
| Lists | List Alphabetizer, List Deduplicator, List Randomizer, List Merger, List Splitter |
| Math | Scientific Calculator, Unit Converter, Percentage Calculator, Loan Calculator, Tip Calculator |
| Time | Stopwatch, Timer, World Clock, Timezone Converter, Date Calculator |
| Organization | Todo List, Checklist Generator, Priority Matrix, Pomodoro Timer, Habit Tracker |
| Utilities | Clipboard History, Screen Ruler, Color Picker, Screen Recorder, Notepad |
| Data | CSV Editor, JSON Viewer, Table Generator, Chart Maker, Checklist Generator |
📊 Summary: 184 Tools Across 5 Categories
| Category | Count |
|---|---|
| PDF Tools | 37 |
| Image Tools | 41 |
| Developer Tools | 38 |
| AI Tools | 35 |
| Task Tools | 33 |
| Total | 184 |
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