Timestamp, UUID, Base64 & URL encoding
Switch tabs: Unix time ↔ rich date formats (sec/ms, offsets, relative time), batch UUID v4, UTF-8 ↔ Base64, URL encode/decode. Everything runs locally in your browser.
Use the date & time fields (updates immediately), or type a Unix value / date string below and Parse. Copy any row on the right.
Pick local date & time
Changes apply right away. Date only → midnight local; time only → today’s date. Clear both to reset.
Whole numbers: ≤10 digits = seconds, ≥11 = ms. Decimals = seconds. “Local” uses your system timezone.
Result
After a successful parse, values appear here: Unix ms/s, UTC & local formats, offset, relative to now, and more.
FAQ
- Is data uploaded?
- No—all work happens in this tab in your browser.
- Seconds or milliseconds?
- Whole numbers: up to 10 digits = seconds (×1000); 11+ digits = milliseconds. Decimal values are treated as seconds. ISO date strings work too.
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