Developer tools

Free developer tools that run right in your browser: format JSON, encode URLs and Base64, generate hashes and passwords, test regex, decode JWTs and more. Nothing is uploaded.

13 tools
Free, runs in your browser
No install needed

All developer tools

13 tools available

Base64 Encoder / Decoder Free Color Converter (HEX, RGB, HSL) Free HTML Entity Encoder / Decoder Free Hash Generator (SHA-256, SHA-512) Free JSON Formatter & Validator Free JWT Decoder Free Lorem Ipsum Generator Free Number Base Converter Free Regex Tester Free Strong Password Generator Free URL Encoder / Decoder Free URL Slug Generator Free Unix Timestamp Converter Free

Free developer tools that run in your browser

Format and validate JSON, encode and decode URLs, Base64 and HTML entities, generate SHA hashes and strong passwords, convert timestamps, colors and number bases, test regular expressions and decode JWTs.

Every developer tool runs 100% in your browser, so your data never leaves your device and there are no limits or credits.

Popular developer tools

Base64 Encoder / Decoder Color Converter (HEX, RGB, HSL)HTML Entity Encoder / Decoder Hash Generator (SHA-256, SHA-512)JSON Formatter & Validator JWT Decoder Lorem Ipsum Generator Number Base Converter Regex Tester Strong Password Generator URL Encoder / Decoder URL Slug Generator Unix Timestamp Converter

Frequently asked questions

Are the developer tools free?

Yes. All developer tools are free, unlimited and need no account.

Is my data sent to a server?

No. Every developer tool runs entirely in your browser, so your JSON, tokens and passwords never leave your device.

Do the tools work offline?

Once the page has loaded, the tools keep working even without an internet connection.