Timestamp Converter

Paste a date/time and get Unix seconds, milliseconds, ISO, RFC and relative time.

100% Browser-Based — code never uploads to our servers. All processing runs locally in your browser.

Paste date / time

Tip: drag & drop a file onto this card, or use Upload / Import Example below.

Upload File

Tool Options

Live convert

Results

Results will appear here…

How It Works

Fast developer utilities that run entirely in your browser.

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Paste or upload

Paste code/data or upload a file. Use Import Example to try instantly. Nothing is uploaded to our servers.

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Process in browser

All parsing and conversion runs locally in your browser — 100% client-side.

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Copy or download

Export results as TXT, JSON, CSV, or JS instantly.

Zero server upload — your data stays on your device.

About Timestamp Converter

Convert dates to Unix timestamps with UTC, local, ISO8601, RFC2822 and relative time. Free browser tool. Built for developers, QA and SEO workflows with sample data, copy and multi-format export.

FAQs

Is my code uploaded?

No. All developer tools process your content in the browser. FreeConverter servers never receive your input.

Is this free?

Yes. FreeConverter.app online JS/JSON tools are free to use.

Do I need an account?

No account or installation is required.