Free Utilities
Free Online Tools
300+ free tools — no signup, no upload, works right in your browser.
Most Popular Tools
Base64 Encode & Decode
Encode text and files to Base64 or decode Base64 strings instantly. Supports URL-safe Base64, data URIs, and file conversion.
URL Encoder & Decoder
Encode or decode URLs and query parameters instantly. Supports encodeURIComponent and encodeURI modes.
JSON Formatter & Validator
Format, validate, and explore JSON data with syntax highlighting and tree view.
Hash Generator
Generate MD5, SHA-1, SHA-256, SHA-384, SHA-512, and CRC32 hashes from text and files instantly.
UUID Generator
Generate UUID v4, v1, and v7 with bulk generation, validation, and format options.
Regex Tester
Build and test regular expressions with real-time match highlighting, capture groups, and code generation.
JWT Decoder
Decode and inspect JWT tokens. View header, payload, signature with expiry status and claim annotations.
Color Converter
Convert between HEX, RGB, HSL, and CMYK color formats instantly with a live preview swatch, color picker, palette generator, and contrast checker.
JSON Converter
Convert between JSON, CSV, XML, YAML, TOML, TypeScript interfaces, and JSON Schema. All conversions run 100% in your browser.
Markdown Editor
Write Markdown with live preview, GitHub-Flavored Markdown support, toolbar formatting, export to .md or HTML, and dark mode.