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Developer

Developer-focused utilities for encoding, formatting, and generating data. Encode text to Base64, format JSON with proper indentation, generate secure passwords and UUIDs, create QR codes, or compute hashes. All processing happens locally in your browser for maximum privacy and speed.

Base64 Encoder/Decoder

Encode or decode Base64 text online. Free tool for developers and webmasters.

JSON Formatter

Format and validate JSON online. Make JSON readable with indentation. Free JSON beautifier.

Hash Generator

Generate MD5, SHA-1, SHA-256, SHA-384 and SHA-512 hashes online. Free hash calculator.

URL Encoder/Decoder

Encode or decode URLs online. Supports URI and URI component encoding.

Color Picker

Pick colors and convert between HEX, RGB, HSL and CMYK. Free online color picker for designers.

About these tools

These tools are designed for speed and simplicity. No registration, no downloads, no ads. Use them directly in your browser with full keyboard support.

Pro tip: Press K to search quickly.