Online Timestamp Converter
Convert between Unix timestamps and dates with multi-format output. 100% private, all processing in your browser
Frequently Asked Questions
A Unix timestamp is the number of seconds (or milliseconds) since January 1, 1970 UTC. It is widely used in programming and databases.
No. All conversion is done locally in your browser. Your input never leaves your device, fully protecting your privacy.
Yes. The tool auto-detects based on the digit count: 10 digits are treated as seconds, 13 digits as milliseconds.
ISO 8601, local time, UTC, and a human-readable relative time (e.g. '2 hours ago') are all displayed simultaneously.
Yes. Use the date picker to select any date and time, and the corresponding Unix timestamp is generated instantly.
Completely free. This is a pure frontend online tool - no registration required, no payment needed, just open and use.
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