Are your developer tools really free?

Yes, all eight developer tools are fully free, with no usage limit and no signup. No feature is hidden behind a paywall. The site is funded by Google AdSense advertising displayed in the margins.

Is my technical data sent to your servers?

No. Every tool runs client-side in JavaScript inside your browser. You can safely hash a password, format a JWT token or encode a sensitive payload: nothing is sent, logged or stored on our side.

How do I quickly format a minified JSON?

Use the JSON Formatter, paste your minified JSON into the textarea and click Beautify. You get an indented, readable version. The tool also automatically detects syntax errors and points to their position.

Do the developer tools work on mobile?

Yes, the interface is responsive and remains usable on smartphone and tablet. It's handy for quickly validating a JSON or decoding a URL from your phone, even when you don't have access to your workstation.

Developer Tools — Utilities for web developers and APIs

From formatting minified JSON to testing regular expressions, from Base64 encoding to MD5/SHA hash generation, Unix timestamp conversion or user agent detection, our eight developer tools cover the daily operations of web integrators and API specialists. Everything runs in the browser with no signup and no data sent to a server.

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JSON Formatter

Format and validate your JSON

Regex Tester

Test your regular expressions

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Base64 Encode/Decode

Encode and decode Base64

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Hash Generator

Generate SHA-256/384/512 hashes

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