Small tools for everyday development.
Format, convert, encode, and decode everyday developer data entirely in this browser. Tool inputs are not uploaded or retained after reload.
All tools
6 available JSON FormatterFormat, minify, repair, search, and inspect JSON locally. Timestamp ConverterConvert strict Unix, ISO 8601, UTC-date, and RFC 2822 values. Base64 Encode/DecodeEncode text and files or decode Base64 entirely in your browser. URL Encode/DecodeEncode URL components and inspect query strings locally. Regex TesterTest and explain JavaScript regular expressions safely. JWT DecoderDecode and inspect JWT claims without verifying signatures.