Crazy Tools
Free browser-based tools. Nothing leaves your machine.
Browse by category
Assemble, compress, and transform documents.
Image
Compress, convert, and prepare visual assets.
Developer
Format, validate, inspect, and run code.
Text
Convert, format, and manipulate written content.
Converters
Move between formats without losing intent.
Generators
Produce assets on demand.
Security
Encode, hash, and inspect.
All Tools
25 tools
Image to PDF
Combine images into a single PDF.
PDF Compress
Reduce PDF file size.
PDF Merge
Combine multiple PDFs.
Image Compressor
Reduce image size, preserve quality.
JSON Formatter
Format, validate, and minify JSON.
QR Code Generator
Generate customizable QR codes.
Base64 Encoder
Encode and decode Base64.
Markdown to PDF
Render Markdown to a PDF.
HTML Viewer
Preview HTML in a sandboxed iframe.
Regex Tester
Test regular expressions live.
JWT Decoder
Inspect JSON Web Tokens.
Password Generator
Cryptographically strong passwords.
Color Converter
Convert between color spaces.
Unit Converter
Precision conversions across units.
Hash Generator
SHA-1, SHA-256, SHA-384, SHA-512.
UUID Generator
Generate UUIDs at scale.
CSV ⇄ JSON
Convert between CSV and JSON.
Diff Viewer
Compare two text documents.
Case Converter
Transform text between cases.
LaTeX to PDF
Compile LaTeX documents to PDF.
Image OCR
Extract text from images.
Background Remover
Remove image backgrounds with AI.
SVG Optimizer
Minify and optimize SVG files.
CSS Specificity Calculator
Calculate CSS selector specificity.
JSON Validator & Viewer
Validate JSON and inspect it in a tree view.