Developer Tools Calculators
Browse all calculators available in the Developer Tools category.
8 calculators found
JSON Formatter
Fix, format, beautify, validate, and minify JSON data instantly with one click. Free online JSON Formatter and JSON Beautifier for developers.
UUID Generator
Generate UUID v4 identifiers instantly. Create single or multiple unique UUIDs for development, databases, APIs, testing, and distributed architecture.
Base64 Encoder Decoder
Encode text or binary data to Base64 strings and decode Base64 back to its original format instantly. Free, secure, client-side online developer utility.
URL Encoder Decoder
Encode and decode URLs instantly. Convert special characters into percent-encoded, URL-safe formats or parse encoded strings back into human-readable text.
JWT Decoder
Decode JWT tokens instantly, right in your browser — nothing is sent to a server. View the header, payload, expiration time, and issue time at a glance.
Hash Generator
Instantly generate MD5, SHA-1, SHA-256, SHA-384, and SHA-512 hashes online — completely free. Built for developers, cybersecurity professionals, students, and IT administrators who need quick, reliable hashing.
Unix Timestamp Converter
Instantly convert Unix timestamps into readable dates, or dates into Unix timestamps. Supports Epoch time, UTC, milliseconds, and other developer-friendly timestamp calculations.
Regex Tester
Test regular expressions instantly against text input. Validate patterns, find matches, and debug regex expressions online.