Unix Timestamp Converter
Convert timestamps to dates and back.
Runs in your browserUpdated Nov 1, 2026Free forever
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How to use the Unix Timestamp Converter
1
Set up the tool
Adjust the controls for the output you need. Most utilities show a live preview.
2
Fine-tune the result
Use the generated code, measurement or artifact and iterate until it fits your context.
3
Copy or export
Copy the value or download the file. Nothing is persisted after you close the page.
What Unix Timestamp Converter is for
Translate Unix seconds or milliseconds into local and UTC dates, or turn a date into a timestamp. Supports ISO 8601 output and relative time.
The Unix Timestamp Converter is part of the Utilities collection on ToolFlow. It is designed for one concrete job: convert timestamps to dates and back. Everything runs client-side, so you can use it with sensitive material without creating a copy on someone else's server.
Common use cases
- Read a log timestamp
- Set an API expiry
- Debug time zones
Good to know
- No account is required, and there is no usage limit on the browser tool.
- Processing happens locally. Files are read from disk and the result is written back to your downloads folder.
- Results are reproducible: the same input and options produce the same output, with no hidden server round-trip.
- If the tool needs a live data source, the page states it explicitly instead of silently failing.
Unix Timestamp Converter FAQ
The questions people ask before using this tool.
No. State lives in the page and disappears when you close it. Nothing is written to a server database.