Developer Tools / CLIENT-SIDE UTILITY
Developer Encoding Toolkit
Encode URLs, HTML entities and JSON strings; convert Unix timestamps and generate hashes.
How to use this tool
Choose the conversion, paste input and run. Follow links for the existing Base64 and JWT tools.
Use it for: Convert timestamps, HTML entities and JSON strings while debugging.
What to provide & expect
- Who it helps
- Developers
- Your input
- Text and a selected operation; dates should include a timezone.
- Your result
- The transformed text or digest.
- Limits to know
- Unix timestamps use seconds; HTML decoding supports a documented subset, not a full HTML parser.
Example
Use 0 for Unix-to-date or 2026-10-23T09:00:00Z for date-to-Unix.
Sample data only. Your inputs stay in this browser.
The interactive workspace loads in your browser. Enable JavaScript to use this tool.