Developer Tools
JSON, Base64, UUID and other utilities for developers.
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Developer utilities format and inspect the payloads you work with daily: JSON, XML, HTML, SQL and API responses. You will also find Base64 and URL encoding, UUID generation, regex testing, JWT decoding, timestamp conversion, and a live HTML/CSS/JS playground.
Formatting and decoding happen in your browser — useful when responses contain tokens, private config or production data you do not want to paste into a random online service.
Common tasks
- Prettify a one-line JSON log from production
- Decode a JWT header or payload without sending it anywhere
- Generate SQL INSERT statements from spreadsheet rows
- Test a REST endpoint with custom headers and body