How it works
How to use the IP to Decimal Converter
Paste or open your IPv4 addresses
Type, paste or drop a file into the left editor — or press Sample to try it.
Adjust the options
Use the options in the toolbar; the result updates as you type.
Copy or download the result
Copy or download the output — or press Swap to convert in the other direction.
About the IP to Decimal Converter
Convert IPv4 addresses to decimal — the single 32-bit integer many databases and GeoIP tables use to store addresses. Paste one address per line to convert many at once.
Built for developers
Why developers use it
Private by design
Runs 100% in your browser. Nothing you paste is uploaded, logged or stored on a server.
Instant results
Output updates as you type, with precise error locations when something is wrong.
Works offline
Once loaded, the tool keeps working without a connection. Install it as an app if you like.
Free, no sign-up
No accounts, no limits, no watermarks.
FAQ
Frequently asked questions
Is my data uploaded anywhere?
No. Everything runs locally in your browser — nothing you type, paste or open is sent to a server, logged or stored. The tool keeps working offline once the page has loaded.
Keep going
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