Convert Unix timestamps to dates and vice-versa.
| ISO 8601 | 2026-08-15T06:44:28.000Z |
| UTC | Sat, 15 Aug 2026 06:44:28 GMT |
| Local | Sat Aug 15 2026 06:44:28 GMT+0000 (Coordinated Universal Time) |
| Relative | 0s ago |
| Unix (seconds) | 1786776268 |
| Milliseconds | 1786776268000 |
Was this tool helpful?
90% · 161 people found this tool helpful
Unix timestamps are the universal time format for logs, APIs and databases — but they are unreadable to humans. This converter translates any Unix timestamp (seconds or milliseconds) into your local date, UTC and ISO 8601 string, and goes the other way too. Use it to debug expired JWTs, to plan cron schedules, or to align log entries across services in different timezones.
Paste Timestamp content into the input box; the tool parses it as soon as you stop typing.
See a live preview of the the target format output before you commit, so you can catch any surprises early.
Save the converted the target format to your device — everything happens in your browser, so nothing is uploaded to a server.
Format conversion is one of those chores you never plan for — a colleague sends a file in the wrong extension, a client app rejects your upload, a legacy system refuses anything but its native format. Timestamp Converter exists so that you never have to install a desktop app or trust a random uploader website just to change a file's container. Everything runs inside your browser tab using modern WebAssembly builds, which means your files are never transmitted, queued, or logged. Toolzer's design philosophy is simple: privacy-first (no tracking, no accounts), performance-first (the page is interactive in under a second on a 3G connection), and honesty-first (no fake ratings, no dark patterns, no upsells). Timestamp Converter follows the same rules as every other utility on the site. You can bookmark this page, share the URL with a colleague, or pin it to your browser's toolbar — the experience will be identical every visit, and it will keep working even if you're on airplane Wi-Fi. Real people use this tool for real work — freelancers cleaning up client deliverables, sysadmins triaging tickets, students finishing assignments — and it is tuned for those workflows, not for demo videos.
Unix uses seconds. JavaScript uses milliseconds. Spot the difference: a 13-digit number is almost certainly ms.
Signed 32-bit timestamps overflow on 19 January 2038. Modern systems use 64-bit timestamps and are unaffected.
Likely a timezone mix-up. Always store timestamps as UTC and convert to local time only at the display layer.
Use TIMESTAMP WITH TIME ZONE (Postgres) or DATETIME stored as UTC. Never mix tz-aware and tz-naive values in the same column.
No. Every utility on Toolzer is free, anonymous, and works in any modern browser without registration.
Yes. Whenever the tool can produce an answer entirely in the browser, the data never leaves your device.
Yes. The interface is fully responsive and works on iOS Safari, Android Chrome, and every modern mobile browser.
Yes. Every Toolzer page has a clean permanent URL you can bookmark or share.
JSON is the lingua franca of modern APIs, configs and logs — but it is unreadable when minified onto one line.
Base64 encodes binary data as ASCII text so it survives email, JSON, HTTP headers and other text-only chann…
JSON Web Tokens encode user identity and claims into a compact, signed string used by most modern APIs.
Hash functions turn any input into a fixed-length fingerprint.
Regular expressions are powerful but easy to get wrong.
UUIDs are 128-bit identifiers globally unique without a central authority — perfect for primary keys, reque…