Tool Fu
$ toolfu run epoch-converter

Epoch Converter — Convert Epoch / Unix Timestamp Online Free

Convert epoch timestamps to human-readable dates and dates to epoch time. Free online epoch converter — supports seconds and milliseconds, shows UTC, ISO 8601, and local time.

all processing runs in your browser
epoch-converter
now: 1773117093(ms: 1773117093857)
input > unix timestamp (seconds or ms)

Free Epoch Time Converter

Convert epoch (Unix) timestamps to dates and dates back to epoch time instantly. Auto-detects seconds vs milliseconds format.

Features

  • Epoch to date conversion
  • Date to epoch conversion
  • Auto-detect seconds vs milliseconds
  • Shows UTC, ISO 8601, and local time
  • Relative time display
$ cat FAQ.md
What is epoch time?
Epoch time (Unix time) counts the number of seconds since January 1, 1970 (UTC). It's the standard way computers track time internally.
What's the difference between seconds and milliseconds?
Unix timestamps in seconds are 10 digits (e.g. 1709913600). JavaScript and many APIs use milliseconds (13 digits, e.g. 1709913600000). This tool auto-detects both.
Is this the same as a Unix timestamp converter?
Yes. Epoch time, Unix time, and POSIX time all refer to the same thing — seconds since the Unix epoch (Jan 1, 1970 UTC).
Is my data processed locally?
Yes. All conversion runs in your browser — nothing is sent to any server.