45+ free tools for encoding, formatting, generating, and converting. Everything runs in your browser — no data leaves your machine.
Encode and decode text or files to/from Base64
Percent-encode and decode URLs and query parameters
Convert special characters to/from HTML entities
Decode and inspect JWT tokens (header, payload, expiry)
Convert between Unicode escape sequences and text
RFC 4648 Base32 encoding and decoding
Pretty-print, minify, and validate JSON with syntax highlighting
Format and validate XML documents
Format SQL queries with dialect support
Beautify or minify CSS stylesheets
Pretty-print HTML with proper indentation
Format and validate YAML documents
Generate UUID v1, v4, and v7 with bulk generation
Generate secure passwords with configurable options
Generate placeholder text in words, sentences, or paragraphs
Generate MD5, SHA-1, SHA-256, SHA-512 hashes from text or files
Generate QR codes with customizable size and colors
Build and explain cron expressions visually
Test regular expressions with match highlighting and groups
Convert between JSON and YAML bidirectionally
Convert between CSV and JSON bidirectionally
Convert between binary, octal, decimal, and hexadecimal
Convert between HEX, RGB, HSL, and OKLCH color formats
Convert timestamps to/from human-readable dates
Convert Markdown to HTML and vice versa
Infer TypeScript interfaces from JSON data
Compare two texts with inline or side-by-side diff view
Live Markdown editor with GitHub Flavored Markdown support
Count words, characters, sentences, and estimate reading time
Convert text between camelCase, snake_case, PascalCase, and more
Sort lines alphabetically, remove duplicates, and reverse
Escape and unescape strings for JSON, XML, Java, and more
Searchable reference of all HTTP status codes with descriptions
Generate HTML meta tags for SEO optimization
Preview how links appear on social media platforms
Interactive CORS header builder and reference guide
Build Content-Security-Policy headers visually