Developer tools

Format, validate, convert and decode data. Everything runs in your browser, so API keys, tokens and private data stay on your device.

Handy tools for everyday data

Tidy up and check data with the JSON Formatter and XML Formatter. Switch between formats with the JSON ↔ XML, YAML ↔ JSON and CSV ↔ JSON converters. Inspect login tokens with the JWT Decoder, and encode or decode text with Base64 and URL encoding.

Unlike many online formatters, nothing you paste is sent to a server, which matters when your data includes access tokens, customer records or secrets.