Bytelify

Unix Timestamp Converter

Convert between a Unix timestamp and a readable date, live as you type.

100% private, runs in your browser

Type in either field — the other updates live. The date field uses your browser's local timezone; the ISO 8601 output above is always UTC. Runs entirely in your browser.

What is Unix Timestamp Converter?

Type a Unix timestamp (seconds since January 1, 1970 UTC) and see the equivalent date instantly, or go the other direction by picking a date and time in the datetime field — both fields update each other live as you edit either one. The page loads pre-filled with the current time, so you always have a working example to start from. This is a common debugging need: log files, database records, and API responses often store timestamps as raw Unix seconds, and converting one by hand is error-prone. An ISO 8601 (UTC) representation is shown alongside the local-time field so you can compare the two directly without doing the timezone math yourself. Everything runs entirely in your browser — nothing you enter is sent to a server.

FAQ

The date/time field uses your browser's local timezone; the ISO 8601 output shown alongside it is always UTC, so you can compare the two directly.

The timestamp field expects standard Unix time in seconds (the traditional definition). If your source data is in milliseconds, divide by 1000 before pasting it in.

An error message appears below the fields explaining what's wrong, and the conversion is skipped until you enter a valid value.