95 free tools · no sign-up · no uploads
Everything runs in your browser.
Compress, convert and edit images, PDFs and video, or reach for developer, API and security utilities. Your files stay on your device.
Compression
Shrink images, SVG and PDF without losing quality.
Conversion
Move between PNG, JPG, WebP, AVIF, HEIC, PDF, ICO, SVG.
Editing
Resize, crop, rotate, build pixelart, apply filters and watermarks.
Resizer
Set width / height
Cropper
Trim with handles
Rotate & Flip
90° turns + mirror
Pixelart Maker
Image to pixel art
Color Adjust
Brightness/contrast/saturation
Apply Filter
Vintage / Duotone / B&W
Add Watermark
Text / image watermark
Blur Region
Censor faces / text
Collage Maker
Stitch multiple images
Image Splitter
Instagram puzzle
AI Tools
Background removal, upscaling, OCR — the model runs in your browser.
Generation
QR codes, palettes, device mockups, ASCII art, OG images.
Meta & Animation
Inspect/strip EXIF, build/extract animated GIFs.
PDF Tools
Merge, split, rotate, reorder, unlock and extract text from PDFs — fully in-browser.
PDF Merge
Combine PDFs in order
PDF Split
Split into pages or ranges
PDF Rotate
Rotate selected pages
PDF Reorder
Drag pages into a new order
PDF Metadata Editor
Title / author / subject
PDF Text Extract
Pull text from a PDF
Add Page Numbers
Number every page
PDF Watermark
Stamp text on every page
Sign PDF
Draw or upload a signature
PDF Form Filler
Fill in PDF form fields
Protect PDF
Add a password
Unlock PDF
Remove a password you know
Repair PDF
Fix damaged PDFs
Video & Audio
Compress video, trim, convert to GIF; extract audio, transcode to mp3 — all via ffmpeg.wasm on-device.
Design Helpers
Generate gradients, box shadows, radii and cubic-beziers; check WCAG contrast and simulate colour blindness.
Developer
Format JSON, decode Base64 / URL / JWT, hash & UUID, test regex, convert colors.
JSON Formatter
Pretty-print or minify JSON
Base64 Encoder/Decoder
Text or file ↔ Base64
URL Encoder/Decoder
encodeURIComponent / decode
JWT Decoder
Inspect a JWT
Hash Generator
MD5 / SHA-1 / SHA-256 / SHA-512
UUID Generator
Bulk UUID v4 / nanoid
Lorem Ipsum Generator
Placeholder copy
Regex Tester
Test a JS regex
Color Converter
hex ↔ rgb ↔ hsl ↔ oklch
Text Diff
Compare two strings
Token Counter
Estimate tokens and cost
MCP Config Tester
Validate Model Context Protocol JSON
JSON Schema Generator
Infer a JSON Schema from a sample
OpenAPI Explorer
Browse paths + methods + params
CSV ↔ JSON
Two-way CSV/JSON converter
JSON ↔ YAML
Two-way JSON/YAML converter
SQL Formatter
Pretty-print SQL
Slug Generator
URL-safe slug, multilingual
Case Converter
camel ↔ snake ↔ kebab ↔ pascal
Architect
Turn a description into a system diagram
API & HTTP
HTTP request builder, cURL ↔ fetch converter, GraphQL playground, WebSocket tester and a status-code reference.
Security
Password generator + strength meter, TOTP/2FA, bcrypt hashing, AES-GCM encryption — all in-browser via Web Crypto.
Network & Sysadmin
IP/CIDR calculator, DNS lookup over DoH, cron expression builder, Unix timestamp converter.
For builders
References we keep open while building.
- LibraryUI kits, AI tools, design resources and developer services.154 resources
- CatalogsCursor rules, MCP servers, prompts, snippets and cheatsheets.214 entries
- BlockchainBase and Solana modules, each with an integration prompt.
- FontsMono, sans, serif, display and pixel typefaces with live previews.39 fonts
- GlossaryAI and vibe coding terms in plain language.66 terms
- ComponentsAnimated React components with live previews and code.