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Built by developers, for developers

12 tools.
Zero friction.

Small, focused tools for the everyday developer grind, formatting, encoding, testing, converting. Nothing to install, nothing to sign up for.

100% local nothing leaves your browser No account needed Free, always

Code Formatter

Beautify HTML, CSS, JS, PHP and C# with one click.

JSON Formatter

Format, validate, minify and sort JSON with clear error locations.

Regex Tester

Live matches, capture groups and flags, highlighted as you type.

JWT Decoder

Inspect header and payload claims, with expiry checked instantly.

Base64 Encoder

Encode and decode text or files, with URL-safe output.

URL Encoder

Percent-encode or decode query strings and full URLs.

Hash Generator

SHA-1, SHA-256, SHA-384 and SHA-512 for text or files.

UUID Generator

Bulk-generate v4 or v7 UUIDs, upper or lowercase.

Timestamp Converter

Unix, ISO 8601 and local time, converted both ways.

Color Tools

HEX, RGB and HSL conversion, plus an eyedropper for images.

Image Converter

Convert between PNG, JPG, WebP and BMP, or wrap as SVG.

Responsive Preview

Preview any URL across common phone, tablet and desktop sizes.

💡 Everything runs in your browser. No files are uploaded, no text is sent anywhere these tools work the same with or without an internet connection once loaded.