Timestamp Converter
Convert Unix timestamps to human-readable dates and back in your browser. UTC and local time — no upload, free online timestamp converter.
Convert Unix timestamps privately
Turn log epochs into readable dates when debugging incidents — log lines with sensitive IDs never need to leave your machine.
What you can do with it
- Decode log timestamps
- Paste Unix seconds from access logs or metrics into human-readable local time.
- Build API test payloads
- Convert a calendar date to epoch milliseconds for request bodies or JWT exp claims.
How to convert a timestamp
- Paste a Unix timestamp or pick a date and time.
- View the converted value in UTC and local time.
- Copy the format you need for logs or code.
Decode log epochs during incidents
Production logs often store Unix seconds. Converting locally helps correlate events without pasting trace lines — which may include user IDs — into a hosted epoch converter.
UTC vs local display
Store and compare in UTC; show local time for human review. The tool surfaces both so you can copy the format your API or database expects.
Related reading and tools
- JWT Decoder — Inspect exp and iat claims after converting timestamps.
- JSON Formatter — Pretty-print log JSON that contains epoch fields.
- Developer tools — All browser-local developer utilities.