Developer Tools
Base64 Encoder/Decoder
Easily encode text and images to Base64 and decode Base64 back. Our free online tool supports UTF-8, image to Base64, and file to Base64 conversions. Fast, secure, and simple to use.
URL Encoder/Decoder
Easily encode and decode URLs with our free online tool. Convert special characters for safe web transmission (percent-encoding) or decode them back to a readable format. Fast, simple, and reliable.
MD5 Hash Generator
Generate MD5 hashes instantly with our free online tool. Supports 32-bit and 16-bit formats (uppercase and lowercase). Perfect for file integrity checks, password hashing, and data verification. Fast, secure, and easy to use.
JWT Generator
Easily generate, decode, and inspect JSON Web Tokens (JWT). Our online tool supports HS256, HS384, and HS512 algorithms for secure token creation and analysis.
Geohash Encoder/Decoder
Encode and decode geohashes, and visualize them on a map.
Timestamp Converter
Instantly convert Unix timestamp to date and date to timestamp. Support for seconds, milliseconds, nanoseconds. View GMT and Local time. The best free online Epoch time converter for developers.
World Clock
Display the current time in multiple cities on a single dashboard.
Unit Converter
Convert between different units of measurement including length, weight, volume, area, temperature, and more.
Base Converter
Convert numbers between different bases including Binary, Octal, Decimal, Hexadecimal, Base32, Base58, and Base62. Supports arbitrary precision conversion.
Regex Tester
Test and debug regular expressions online with real-time highlighting and replacement preview.
XML <-> JSON Converter
Convert XML to JSON and JSON to XML online. Simple, fast, and free tool for developers.
SQL Formatter
Format and beautify SQL queries online. Supports MySQL, PostgreSQL, SQLite, and more.
QR Code Generator
Generate QR codes for free with our powerful online tool. Support for URLs, WiFi, vCards, email, phone numbers, and plain text. Customize colors, add your logo, and download in PNG or SVG format.
UUID Generator
Generate UUIDs instantly with our free online tool. Supports UUID v1, v4, Nil versions. Bulk generate up to 1000 UUIDs. Multiple formats available. Fast and secure.
Color Picker
Free online color picker and converter tool. Convert between HEX, RGB, HSL, HSV color formats instantly. Generate color palettes, pick colors visually, and copy color codes with one click.
Cron Generator
Generate and parse cron expressions online for free. Visual cron job scheduler with next execution times, syntax validation, and common presets. Perfect for Linux, Unix, and cloud scheduling.
Text Diff
Free online text diff tool to compare two texts and find differences. Supports line-by-line, word-by-word, and character-by-character comparison. Highlight additions and deletions instantly.
Hash Generator
Generate hash values instantly with our free online tool. Supports MD5, SHA-1, SHA-256, SHA-512, SHA-384, SHA3, RIPEMD-160 algorithms. Calculate hashes for text and files. Fast, secure, and easy to use.