Unix timestamps in everyday development
Unix timestamps (seconds or milliseconds since the epoch) appear in JWT claims, database columns, log entries, API responses, and cache expiry headers. Converting between epoch values and readable dates is a daily task for backend engineers, SREs, and frontend developers debugging timezone issues.
Bidirectional conversion
The Unix Timestamp Converter accepts epoch seconds or milliseconds and shows the equivalent local datetime, or lets you pick a datetime and get the corresponding Unix value. Switch between seconds and milliseconds depending on your API or database convention.
Debugging logs and tokens
When investigating expired sessions, JWT `exp` claims, or log correlation across services, paste the raw timestamp and instantly see whether a token expired yesterday or in 2030 (a common milliseconds-vs-seconds mistake). No mental math, no timezone guesswork.
More converters coming
The converters category will grow with additional format and unit tools. For now, pair the timestamp converter with JSON Tools for parsing date fields in API payloads, or with the Hash Generator when verifying time-based signatures.