Timestamp Converter
Convert Unix timestamps and human-readable dates locally in your browser.
Local developer time tool
Convert timestamps both ways.
Switch between seconds and milliseconds, view UTC and local time, and copy ISO 8601 output without server requests.
When should you convert timestamps?
Unix timestamps are common in logs, APIs, databases, analytics exports, and debugging workflows.
This tool converts timestamps to ISO 8601, UTC, and local time so dates can be checked quickly without a date library or network request.
Frequently Asked Questions
Is this Timestamp Converter free?
Yes. You can convert, copy, and clear timestamps without signup.
Are conversions done locally?
Yes. All conversion happens in your browser using native Date APIs.
Does it support seconds and milliseconds?
Yes. Use the unit selector to switch between Unix seconds and Unix milliseconds.
What timezone is shown?
The output includes ISO 8601, UTC, and your browser local timezone.
What happens with invalid dates?
The tool shows a friendly warning and preserves your input.
Privacy Policy
We do not collect, store, upload, or transmit timestamps or dates entered into this tool.
Terms of Use
ConvertUnlimited is provided as is. Review converted dates before using them in production systems.