Timestamp Converter
Converts Unix timestamps (seconds or milliseconds) to human-readable local and UTC dates, and vice versa. Includes a live-updating current timestamp and ISO 8601 output.
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Timestamp Converter — Free Online Tool
Converts Unix timestamps (seconds or milliseconds) to human-readable local and UTC dates, and vice versa. Includes a live-updating current timestamp and ISO 8601 output.
How to use the Timestamp Converter
- Open the tool above — it runs entirely in your browser, so your input never leaves this page.
- Paste or type your input into the field, then press the relevant button (e.g. Encode / Decode, Generate, or Convert).
- Copy the result from the output area with the copy button orCtrl/Cmd + C.
- No signup, no upload, and no tracking — repeat as often as you need.
Frequently asked questions
What is a Unix timestamp?
A Unix timestamp counts the seconds (or milliseconds) that have passed since 1970-01-01 00:00:00 UTC, not counting leap seconds. This tool converts it to a human-readable UTC local date and back.
Does the converter handle milliseconds and nanoseconds?
Yes. It auto-detects the magnitude of the input and interprets it as seconds, milliseconds, or nanoseconds, then shows the equivalent date in UTC.
Free & private — why use this Timestamp Converter
The Timestamp Converter runs 100% client-side in your browser. Your data is never uploaded to a server, no account is required, and the tool is completely free. It works offline once the page has loaded and is part of a growing collection of privacy-first developer utilities.