Free · Client-side · No Row Limit

Batch Timestamp Converter

Convert an entire list of Unix timestamps to dates at once — paste, convert, export.

Paste Timestamps

One per line · no row limit

All conversion happens locally in your browser. Nothing is uploaded.

Timestamps (one per line)

Converted results will appear here.
Paste timestamps above and click Convert All.

Why Batch?

Why Convert in Bulk?

Converting one timestamp at a time works fine for a single lookup, but breaks down fast when you're staring at a log file, a database export, or an API response full of them.

This tool processes an entire pasted list in one pass, flags anything that isn't a valid number instead of failing the whole batch, and lets you export the results for further analysis.

Common Use Cases

Bulk conversion comes up when:

Reading raw server/application logs Reviewing a database export column Inspecting a bulk API response Preparing data for spreadsheet analysis Auditing timestamps during debugging

FAQ

Frequently Asked Questions

This tool has no hard limit — it processes each line in the browser, so practical limits depend on your device's memory rather than a server quota. Lists of a few thousand timestamps convert instantly.

One Unix timestamp per line, in either seconds or milliseconds (choose the matching unit above the input box). Blank lines are ignored, and any line that isn't a valid number is flagged as invalid in the output instead of breaking the conversion.

Yes. After converting, use the Download buttons to save the results as a plain text file or a CSV file with the original timestamp and converted date in separate columns.

No. All parsing and conversion happens locally in your browser using JavaScript's Date object. Nothing you paste into this tool is sent to a server. Converting a single value instead? Use the full Unix Timestamp Converter.

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Batch Timestamp Converter

Paste Timestamps

Why Convert in Bulk?

Common Use Cases

Frequently Asked Questions

How many timestamps can I convert at once?

What format should my input list be in?

Can I export the converted results?

Is my data uploaded anywhere?

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Single Timestamp

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