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Convert Unix timestamps to dates and back.
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One task, zero friction: convert unix timestamps to dates and back. Unix Timestamp Converter runs right in your browser as part of ToolsMonk's converters lineup: no installs, no account, and nothing to configure before you start.
This tool is especially useful for workflows such as decoding a unix timestamp from a database, log, or api into a readable date, converting a date to an epoch timestamp for code, and debugging time values in development. Because it runs directly in your browser, you can use it on desktop, tablet, or mobile while keeping the process fast and easy for one-off tasks as well as repeat work.
Unix Timestamp Converter is designed for people who want a practical, privacy-friendly workflow with instant results inside the larger ToolsMonk library.
| Price | Free, no signup, no paywall, no watermark |
|---|---|
| Works on | Any modern browser: desktop, tablet, and mobile |
| Processing | In your browser, files never leave your device |
| Account required | None |
| Category | Converters |
Enter a Unix timestamp (or a date)
Choose seconds or milliseconds if needed
See the converted readable date (or epoch value)
Copy the result
Converts between Unix timestamps and human-readable dates
Handles seconds and milliseconds
Shows the date in readable form and back to epoch
Essential for developers working with timestamps
Runs in your browser, nothing is uploaded
Free, with no signup and no cap on conversions
Decoding a Unix timestamp from a database, log, or API into a readable date
Converting a date to an epoch timestamp for code
Debugging time values in development
Checking what a timestamp represents
Unix Timestamp Converter is a free online tool on ToolsMonk with a single focus: convert unix timestamps to dates and back. Whether you're a professional, student, or casual user, it provides instant, accurate results right in your browser without requiring any software installation or account creation.
All processing runs locally in your browser, so your files and data never leave your device. Like every tool in the Converters collection, it works across all modern browsers on desktop, tablet, and mobile: same features, same results, on every device.
Epoch Converter translates between Unix timestamps and human-readable dates, handling both seconds and milliseconds, an everyday utility for developers working with the time values stored in databases, logs, and APIs.
A Unix timestamp is simply the number of seconds since 1 January 1970 UTC, a compact, timezone-independent way to pin down a moment, which is why it's so ubiquitous in software. The most common confusion is precision: classic Unix time is seconds (~10 digits) while JavaScript and many APIs use milliseconds (~13 digits), and mixing them produces dates in 1970 or the far future, so the converter lets you pick the unit.
Another key point: epoch time is always UTC, representing the same instant globally; a timezone is only applied when you render it as a readable date, which is why one timestamp displays as different local times in different places. Understanding this avoids a lot of timezone bugs.
It's also where the 'Year 2038 problem' lives, legacy 32-bit signed timestamps overflow in January 2038, a Y2K-like issue that modern 64-bit systems avoid. Conversion runs in your browser with nothing uploaded. Pair it with the Timezone Converter and other ToolsMonk developer tools for time-related work.
Check digit count: ~10 digits = seconds, ~13 = milliseconds, mixing them gives wildly wrong dates
Epoch time is always UTC; the timezone is applied only when you display it as a date
If a converted date lands in 1970 or the far future, you've likely got the seconds/ms unit wrong
Common questions about this tool, its workflow, and what to expect before you use it.
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