Unix Timestamp Converter & Epoch Pro

Convert Unix timestamps to readable dates and back without leaving your browser.

Unix Timestamp Converter & Epoch Pro is a browser extension for developers who work with API responses, database records, server logs, and other timestamp-heavy data. It detects common 10-digit and 13-digit timestamps and helps you check local time, UTC time, and relative time at a glance.

Get it from the Chrome Web Store

Convert timestamps in seconds or milliseconds

Unix timestamps commonly appear in two formats:

• Seconds: typically 10 digits
• Milliseconds: typically 13 digits

Confusing the two can lead to incorrect dates when debugging APIs or inspecting stored data. Timestamp Pro automatically detects these common formats, helping you interpret timestamp values without manually figuring out which unit they use.

Key features

Timestamp to date conversion

Turn a Unix timestamp into a human-readable date and time. Quickly inspect values copied from API responses, JSON payloads, database records, or server logs.

Date to timestamp conversion

Convert a date and time into a Unix timestamp when preparing test data, checking API parameters, or working with backend systems.

Local time and UTC

View timestamps in local time and UTC to help investigate timezone differences between your development environment, servers, and API responses.

Relative time

Check how a timestamp relates to the present, making it easier to interpret recent events, older records, and future dates.

Convert timestamps from selected text

Select a timestamp on a webpage and send it to the extension for conversion. This is useful when inspecting logs, documentation, dashboards, or other pages containing timestamp values.

Quick copy actions

Copy converted values without manually selecting and reformatting the output.

Designed for everyday debugging

Timestamp Pro fits naturally into common development workflows:

• API debugging: inspect timestamps returned by an endpoint.
• Database inspection: understand stored creation and update times.
• Server logs: translate event timestamps into readable dates.
• Timezone troubleshooting: compare local time with UTC.
• Test data preparation: convert dates into timestamps for API requests and test cases.

Instead of opening a separate online converter every time you encounter a timestamp, you can perform these conversions directly in your browser.

Privacy-first, local conversion

Timestamp Pro processes timestamp values locally in your browser. Timestamp data does not need to be uploaded to a remote conversion service.

This makes it a practical option when inspecting development data, logs, or other values you prefer to keep on your own device.

How to use Timestamp Pro

1. Open the extension and enter a timestamp, or select a timestamp from a webpage.
2. Let the extension detect whether the value represents seconds or milliseconds.
3. Check the converted date, local time, UTC time, and relative time.
4. Convert a date back to a timestamp when needed, then copy the result.

Open source

Timestamp Pro is independently developed, and its source code is available on GitHub.

View the source code on GitHub

If you work with Unix timestamps regularly, Timestamp Pro aims to make those small but frequent conversions quicker, clearer, and more convenient—all without leaving your browser.