Developer Utilities
Format JSON, encode and decode, test regex, and use hashes and formatters—all in your browser. No sign-up, no data sent to servers.
Related Categories
Converters for units and number bases. Text for word count and formatting. Generators for passwords and random data.
Frequently Asked Questions
Is my code or data sent to a server?
No. All developer tools run in your browser; input stays on your device.
Which regex flavor is supported?
JavaScript (ECMAScript) regex. Slightly different from PCRE or Python.
Can I use these in production?
Tools are for development and testing. For production use proper libraries and validation.