Timestamp and date tools for Unix time, APIs, logs, and tokens
Time bugs often come from unit confusion, timezone assumptions, or values copied from tokens and logs without context. These tools help convert the value first, then connect it to the API, JWT, or log workflow where it appeared.
Tools in this workflow
Converters
OpenTimestamp Converter
Convert Unix seconds, Unix milliseconds, and ISO date strings with readable UTC and local output.
API & Auth
OpenJWT Expiry Checker
Show whether a JWT is expired, valid, or missing expiry claims with readable timestamps.
Dev Debug Helpers
OpenLog Prettifier
Format JSON logs and semi-structured log lines into cleaner readable output for debugging.
Dev Debug Helpers
OpenCron Expression Reader
Interpret common cron expressions, validate input, and explain schedules in human language.