Unix Timestamp Converter
Convert a Unix timestamp (seconds or milliseconds) or a date string to ISO 8601, UTC and local time, instantly and privately in your browser.
Runs entirely in your browser — nothing you enter is uploaded or stored.
Unix Timestamp Converter
Convert a Unix timestamp (seconds or milliseconds) or a date string to ISO 8601, UTC and local time, instantly and privately in your browser.
Paste your timestamp or date on the left and the result is produced instantly — entirely in your browser. Your data never leaves the page, which you can confirm from the Network panel or our privacy policy.
Frequently asked questions
How do I use the Unix Timestamp Converter?
Paste or type your timestamp or date on the left and the result appears on the right — copy or download it. Everything runs in your browser.
Is my data uploaded anywhere?
No. This tool runs entirely in your browser — your input is never sent to a server. You can verify it in the Network tab or in our Content-Security-Policy.
Is the Unix Timestamp Converter free?
Yes — completely free, no sign-up and no limits. Everything happens client-side.