Free Online Developer Tools Suite
Format, encode, minify and test — the everyday dev utilities in one tab.
A suite of the utilities developers reach for daily: convert between JSON, XML and YAML, encode or decode Base64, minify JavaScript and CSS, switch string casing, and test regular expressions against live input with highlighted matches.
- JSON
- XML
- YAML
- Base64
- RegExp
- JS/CSS
How to use it
- Open the Developer Tools Suite from the tool directory.
- Pick a utility tab such as JSON⇄XML, Base64 or Regex Tester.
- Paste your input, transform it, and copy the result.
Frequently asked questions
Can I convert JSON to XML and back?
Yes, in both directions, with validation that flags malformed input before converting.
Is there a regex tester?
Yes. An interactive tester highlights matches live as you type your pattern and test string.
Is my code sent to a server?
No. All parsing, encoding and minification run locally in your browser tab.
Can I minify JavaScript and CSS here?
Yes. Paste your source to get a compact production-ready version instantly.