Unix Timestamp Converter

Convert Unix timestamps to human-readable dates and vice versa. Supports seconds and milliseconds.

Timestamp → Date

Date → Timestamp

About this tool

Convert Unix timestamps to human-readable dates and vice versa. Supports seconds and milliseconds. This tool runs entirely in your browser — no file upload, no account required, and no data is ever sent to a server. All processing happens client-side in your browser — your data never leaves your device.

  • ✅ Free to use, no sign-up required
  • ✅ Files never leave your device
  • ✅ Instant conversion
  • ✅ Works on any browser and device

How it works

Your input is processed using browser-native JavaScript APIs — JSON.parse, TextEncoder, SubtleCrypto, and others — entirely client-side. No server is involved.

Frequently Asked Questions

Is Unix Timestamp Converter free to use?
Yes, Unix Timestamp Converter is completely free. There are no usage limits, no sign-up required, and no hidden fees.
Is my data safe when using this tool?
Yes. All calculations and transformations run locally in your browser. No data is transmitted to any server.
Does Unix Timestamp Converter work on mobile?
Yes, Unix Timestamp Converter works in any modern browser including mobile browsers on iOS and Android — no app installation required.

Related Tools