🔐 Encoding & Crypto
Base64 Encoder & Decoder
Encode and decode Base64 strings instantly with full UTF-8 support. Useful for APIs, data URIs, and email attachments.
URL Encoder & Decoder
Encode special characters or decode percent-encoded strings instantly. Uses encodeURIComponent for correct query parameter encoding.
Hash & Encoder
Generate MD5, SHA-256 hashes, encode/decode Base64, URL encoding, and other cryptographic utilities.
JWT Decoder
Decode and inspect JSON Web Tokens instantly. View header, payload, and expiry. Client-side only — your token never leaves the browser.
📝 Text & Content
Text Tools
Case converter, word counter, Lorem Ipsum generator, and more text manipulation utilities in one place.
Regex Tester
Test JavaScript regular expressions with live match highlighting. Toggle flags, view capturing groups, and debug patterns instantly.
Cron Expression Parser
Translate cron expressions into plain English instantly. Supports wildcards, ranges, steps, and lists with a field-by-field breakdown.
⚙️ Data & Dev Tools
JSON Formatter & Validator
Pretty print, minify, and validate JSON instantly. Clear error messages for invalid JSON with side-by-side input and output.
UUID v4 Generator
Generate cryptographically random, RFC 4122 compliant UUIDs. Create up to 1000 at once, toggle formatting options, and copy or download instantly.
WHOIS Lookup
Look up domain registration details — registrar, creation date, expiry, nameservers, and status — using public RDAP services.
🔢 Numbers & Conversions
Number Base Converter
Convert between binary, octal, decimal, and hexadecimal number systems. Features real-time conversion, history tracking, and copy buttons.
Calculator
Basic and scientific calculator with keyboard support, calculation history, and advanced mathematical functions including trigonometry and logarithms.
Unit Converter
Convert between different units of measurement. Length, weight, temperature, speed, and more.
Unix Timestamp Converter
Convert between Unix timestamps and readable dates. Real-time current timestamp display with support for UTC and local timezones.