Timestamp Converter
Convert between Unix timestamps and human-readable dates, in both directions, with multiple format outputs.
Runs entirely in your browser — your files are never uploaded to a server.
How It Works
1. Choose Your File
Drag & drop or select the file you want to work with.
2. Processed in Your Browser
Everything happens locally on your device — your file is never uploaded anywhere.
3. Download Your Result
Get your finished file instantly, ready to save or share.
Frequently Asked Questions
What's a Unix timestamp?
The number of seconds (or milliseconds) since January 1, 1970 (UTC) — a standard way computers represent a specific moment in time.
Can I convert in both directions?
Yes, enter either a timestamp or a human-readable date, and the other field updates automatically.
Does this account for my timezone?
The human-readable date field reflects your browser's local timezone; the results panel also shows the UTC equivalent.
Seconds or milliseconds?
Both are supported — toggle the unit selector depending on which your timestamp uses (JavaScript typically uses milliseconds, many other systems use seconds).