Tool Fu
$ toolfu run unix-timestamp-converter

Unix Timestamp Converter — Convert Unix Time to Date Online Free

Convert Unix timestamps to human-readable dates and dates to Unix time. Free online Unix timestamp converter with ISO 8601, UTC, and relative time display.

all processing runs in your browser
unix-timestamp-converter
now: 1773117095(ms: 1773117095422)
input > unix timestamp (seconds or ms)

Free Unix Timestamp Converter

Convert Unix timestamps (epoch time) to readable dates and back. Auto-detects seconds vs milliseconds, shows multiple formats including ISO 8601.

Features

  • Unix timestamp to date conversion
  • Date to Unix timestamp conversion
  • Auto-detect seconds vs milliseconds
  • Multiple output formats (UTC, ISO 8601, local)
  • 100% browser-based — no server
$ cat FAQ.md
What is a Unix timestamp?
A Unix timestamp is the number of seconds elapsed since January 1, 1970 00:00:00 UTC. It's used universally in programming and databases to store dates.
How do I get the current Unix timestamp?
Open this tool and click 'now' to see the current Unix timestamp. You can also use Date.now() in JavaScript (returns milliseconds) or time() in PHP/Python (returns seconds).
Why use Unix timestamps?
They're timezone-independent, easy to compare and sort, compact to store, and universally supported across programming languages and databases.
Is my data sent anywhere?
No. All conversions happen locally in your browser.