Timestamp Converter

Unix to human.

And back again.

Now ·
Unix Timestamp
Human Date
Timezone
No upload
Works offline
No idea what's in your data

Need a CLI timestamp tool? The offline bundle includes command-line tools. $99 once.

Get Bundle →
// How it works

Three steps. Zero uploads.

01
Enter
Paste a Unix timestamp or type a date. It stays on your device.
02
Convert
fwip converts between Unix timestamps and human-readable dates. Shows local timezone and UTC.
03
Copy
Click any value to copy it. Nothing was ever uploaded.
// Why this is different

Your data stays in your browser.

Timestamp conversion is a simple calculation, yet many online tools track your inputs. fwip runs everything locally with zero network requests.

fwip works differently. The converter runs entirely in your browser. Your data is read from your device, processed on your CPU, and the result is saved back to your device. No server is involved. We literally cannot see your file.

No server processing

Everything runs on your device using WebAssembly. Your file never touches a network.

No account required

Drop a file. Get a result. No sign-up, no email, no password.

No subscription

Free in the browser. $99 once for the offline bundle. That's it. Forever.

Works offline

The desktop version works with no internet connection at all.

// Questions

Frequently asked.

How do I convert a Unix timestamp to a date?▾
Paste a Unix timestamp into fwip. It instantly shows the human-readable date and time in your local timezone and UTC. Everything runs in your browser.
Can I convert a date to a Unix timestamp?▾
Yes. Enter any date and time and fwip converts it to a Unix timestamp (seconds and milliseconds). Both directions work instantly.
Does fwip support millisecond timestamps?▾
Yes. fwip auto-detects whether the input is in seconds or milliseconds and converts accordingly.
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