Converters
Unix Timestamp Converter — Epoch to Date, No Upload
🔒 Runs in your browser
Convert a Unix timestamp (epoch) to a human-readable UTC and local date — or go the other way. Auto-detects seconds vs milliseconds. Everything runs in your browser with no upload, no account, no tracking.
How to use this tool
- Enter a Unix timestamp or a human-readable date.
- See instant conversion between Unix and ISO 8601 formats.
- Copy the result in your preferred format.
Frequently Asked Questions
- Seconds or milliseconds?
- Both. The tool auto-detects by digit length (10 digits = seconds, 13 = milliseconds) and you can override with the toggle.
- Which time zone is shown?
- Both UTC (ISO 8601) and your browser's local time, computed with your system time-zone settings.
- Is my data sent anywhere?
- No. All conversion runs in your browser.