About

What this is

A collection of free developer tools: formatters, converters, encoders, hash generators, regex testers, image tools and more. Every tool has its own page with a short guide, examples and answers to common questions.

How it works

The tools run entirely in your browser with JavaScript and WebAssembly. Your input never leaves your device, so it is safe to paste configuration files, logs or data you would rather not upload.

What we care about

• Private by default. No accounts, no uploads, and analytics never include what you type.
• Fast and simple. Each page loads only the tool it shows, and results update as you type.
• Works everywhere. Desktop and phone, light and dark mode, and 20 languages, including right-to-left Arabic.

How the site is funded

The tools are free. The site may show a small number of ads outside the tool area to pay for hosting and development.

Contact

Found a bug, have an idea, or want a tool we do not have yet? Use the Feedback button at the top of any page. We read every message.