01 / Fast steps
- Type a Unix timestamp (seconds or milliseconds) or a date string.
- Read the converted value instantly, updated as you type.
Timestamp Converter
Enter a Unix timestamp or a date, and get the other one back instantly.
Updates instantly as you type
02 / Best for
- Debugging API responses that store dates as Unix timestamps.
- Converting a JWT `exp` or `iat` claim to a readable date.
- Checking what date a log line or database record refers to.
03 / Why here
- Runs entirely in your browser, nothing is uploaded.
- Auto-detects seconds vs. milliseconds timestamps.
- Also shows the ISO 8601 and UTC representations.
04 / Keep in mind
- Dates are parsed using the browser’s native date parser, so ambiguous formats may not resolve as expected.
Tool connections
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Good to know
Questions & answers
01Does this work with millisecond timestamps?
Yes, timestamps with 13 or more digits are treated as milliseconds; shorter ones are treated as seconds.
02Is my data sent anywhere?
No, the conversion runs entirely in your browser using native JavaScript date handling.
03Is Timestamp Converter free to use?
Yes, Timestamp Converter is completely free, with no sign-up and no usage limits. It runs entirely in your browser, so your data never leaves your device.