Developer Tools
Free online tools for developers. Simple, fast, and runs entirely in your browser.
Unix Timestamp Converter
Convert between Unix timestamps and dates. Supports seconds, milliseconds, and multiple timezone formats.
Base64 Encoder / Decoder
Encode text to Base64 or decode Base64 back to plain text. Supports UTF-8 and various output formats.
Color Converter
Convert between HEX, RGB, and HSL color formats with live color preview.
Text Diff Checker
Compare two texts side by side and highlight differences. Useful for code reviews and revisions.
JSON Formatter & Validator
Format, validate, and prettify JSON data. Supports indentation control and minification.
URL Encoder / Decoder
Encode or decode URL strings. Supports encodeURIComponent and form-urlencoded formats.
Case Converter
Convert text between camelCase, PascalCase, snake_case, kebab-case, and more.
HTML Formatter & Minifier
Format or minify HTML code. Indent your markup or compress it for production.
CSS Formatter & Minifier
Format or minify CSS code. Clean up stylesheets or compress for faster loading.
Hash Generator
Generate SHA-1, SHA-256, SHA-384, and SHA-512 hashes using the Web Crypto API.
UUID Generator
Generate random UUID v4 identifiers for database keys, session IDs, and more.
Lorem Ipsum Generator
Generate Lorem Ipsum placeholder text for designs, mockups, and layouts.
Word Counter
Count words, characters, lines, sentences, and paragraphs with reading time.
Password Generator
Generate strong, random passwords with customizable character sets.
Slug Generator
Convert text to URL-friendly slugs for blog posts and permalinks.
HTML Entity Encoder / Decoder
Convert special characters to HTML entities and back for safe HTML content.
Number Base Converter
Convert numbers between binary, octal, decimal, and hexadecimal formats.
JWT Decoder
Decode JSON Web Tokens to inspect header and payload contents.
Regex Tester
Test regular expressions in real-time with highlighted matches and positions.
JSON ↔ YAML Converter
Convert between JSON and YAML formats for config files and data interchange.
Markdown Preview
Write Markdown with live HTML preview. Great for documentation and notes.
HTTP Status Codes
Quick reference for HTTP status codes by category with search and filters.