Free Online Developer Tools

Fast, clean, and privacy-friendly. JSON Formatter, Base64 Encoder, UUID Generator, and more. No signup. No ads. Works offline.

{ }Formatters

Format, validate, and minify JSON data instantly. Beautify JSON with syntax highlighting and error detection.

Encode and decode Base64 strings online. Supports text and file conversion with instant results.

Generate UUIDs (v4) instantly. Bulk generate up to 100 UUIDs with customizable format options.

Built with Next.js and optimized for speed. Every tool loads instantly with zero bloat.

All processing happens in your browser. Your data never leaves your device.

Easy on the eyes with automatic dark mode support. Perfect for late-night coding sessions.