Convert a list of Unix timestamps to dates (or vice versa).
Free · Runs in your browser · Last updated
Paste many timestamps (one per line) to convert them all to ISO/local dates at once, or convert dates back to Unix epochs. Auto-detects seconds vs milliseconds.
All processing for Timestamp Batch happens locally inside your browser using JavaScript. Your input is never uploaded to a server, logged, or shared with third parties.
Yes. Timestamp Batch is completely free for both personal and commercial projects. There are no usage limits, no sign-up, and no premium tier.
All processing happens locally in your browser using JavaScript. Your input is never uploaded to our servers, logged, or shared with any third party.
Once the page has loaded, the tool runs entirely client-side. You can disconnect from the internet and it will keep working in the same browser tab.
Timestamp Batch works in all modern browsers, including the latest versions of Chrome, Firefox, Safari, Edge, Brave, and Opera, on desktop and mobile.
No. Timestamp Batch runs in any modern web browser with no installation, browser extension, or account required.