Playgrounds
Useful tools for everyday tasks
JSON Formatter
Prettify and validate JSON
Base64 Encode/Decode
Convert text to/from Base64
UUID Generator
Generate random UUIDs
Color Picker
Pick and convert colors between formats
Regex Tester
Test regular expressions with live preview
Markdown Preview
Live markdown to HTML preview
Hash Generator
Generate MD5, SHA-1, SHA-256 hashes
Timestamp Converter
Convert between Unix timestamps and dates
About Playgrounds
A collection of standalone tools that are useful for development, design, and everyday tasks. No ads, no tracking, just utilities.
- All tools run client-side (no data sent to servers)
- Bookmark individual tools for quick access
- Suggest new tools via GitHub issues