Free Online Developer Tools

A collection of free, fast, and privacy-focused developer tools. Encode Base64, generate UUIDs, decode JWTs, format JSON, convert timestamps, and convert colors — all directly in your browser with no sign-up required.

Our Developer Tools

  • UUID Generator

    Generate universally unique identifiers (UUIDs) instantly for your development needs.

  • Base64 Encoder/Decoder

    Encode or decode Base64 strings with our simple and efficient online tool.

  • JWT Reader

    Decode and inspect JSON Web Tokens (JWT) instantly.

  • JSON Formatter

    Format and validate your JSON data with our simple and efficient online tool.

  • UNIX Timestamp Converter

    Convert UNIX timestamps to human-readable dates and vice versa.

  • Color Converter

    Convert colors between RGB and Hexadecimal formats with live preview.

Why Use Our Developer Tools?

All tools run entirely in your browser — your data never leaves your device. No accounts, no tracking, no server-side processing. Just fast, reliable utilities built for developers, designers, and system administrators.

100% Client-Side Processing

Every tool on this site processes data locally in your web browser using JavaScript. Whether you're decoding a JWT token, formatting JSON, or generating a UUID, nothing is sent to any server. Your data stays private and secure.

No Sign-Up Required

Start using any tool immediately — no registration, no email, no login. Bookmark this page and come back anytime you need a quick developer utility.