Free utility

Unix Timestamp Converter

Convert Unix seconds or milliseconds to readable dates and back.

Processing stays on this device. Your input is not uploaded, sent to an external service, or saved by Crow Tech.

Workbench

Inputs stay on this page. Use the explicit action to validate and produce a result.

ISO input must use a four-digit year, include seconds, and include a timezone, such as 2026-07-22T12:30:00Z.