Does Extract IPv4 upload my file or text to Tool-You servers?

No. Extract IPv4 runs in this browser tab. Files stay on the device. Limit note: IPv4 dotted decimals only. Leading zeros allowed by the regex. Not IPv6, not CIDR.

Should I use Extract URLs instead of Extract IPv4?

Use Extract IPv4 when you need Pull IPv4 addresses from text. Use Extract URLs when you need Pull unique http(s) URLs; strip punct, sort. They share a category (Text) but not the same job.

What are the limits of Extract IPv4?

IPv4 dotted decimals only. Leading zeros allowed by the regex. Not IPv6, not CIDR. Also: Matches dotted decimals 0–255 per octet. Not IPv6. Not a subnet or CIDR tool. Duplicates removed.

Extract IPv4

Pull IPv4 addresses from text.

Matches dotted decimals 0–255 per octet. Not IPv6. Not a subnet or CIDR tool. Duplicates removed.

What Extract IPv4 does

Matches dotted decimals 0–255 per octet. Not IPv6. Not a subnet or CIDR tool. Duplicates removed.

The interactive controls for Extract IPv4 load after this article so crawlers still read the instructions. Path /extract-ipv4 is the canonical address. Work happens on this device; Tool-You does not take a copy of the file or pasted text for Extract IPv4.

How to use Extract IPv4

Keep this tab on Extract IPv4 (/extract-ipv4). Pasting into the wrong Text tool (for example Extract URLs) changes the job.
Paste or type the input Extract IPv4 expects. Path hint: extract ipv4. Pull IPv4 addresses from text.
Apply the Extract IPv4 action only. Extract Phone Numbers is a different transform (Pull likely phone numbers from text.). Matches dotted decimals 0–255 per octet. Not IPv6. Not a subnet or CIDR tool. Duplicates removed.
Copy the output of Extract IPv4 if you need it elsewhere. Size/complexity still follows: IPv4 dotted decimals only. Leading zeros allowed by the regex. Not IPv6, not CIDR.
If the text job is actually Pull unique http(s) URLs; strip punct, sort., leave Extract IPv4 and open Extract URLs.

When not to use Extract IPv4

Skip Extract IPv4 when a neighbor tool matches better — start with Extract URLs or Extract Phone Numbers — or when the description already warns the job will fail. In the tool’s own words: Matches dotted decimals 0–255 per octet. Not IPv6. Not a subnet or CIDR tool. Duplicates removed.

Questions about Extract IPv4

What does Extract IPv4 do that other Text pages on this site do not?: Matches dotted decimals 0–255 per octet. Not IPv6. Not a subnet or CIDR tool. Duplicates removed. Short version: Pull IPv4 addresses from text.
Does Extract IPv4 upload my file or text to Tool-You servers?: No. Extract IPv4 runs in this browser tab. Files stay on the device. Limit note: IPv4 dotted decimals only. Leading zeros allowed by the regex. Not IPv6, not CIDR.
Should I use Extract URLs instead of Extract IPv4?: Use Extract IPv4 when you need Pull IPv4 addresses from text. Use Extract URLs when you need Pull unique http(s) URLs; strip punct, sort. They share a category (Text) but not the same job.
What are the limits of Extract IPv4?: IPv4 dotted decimals only. Leading zeros allowed by the regex. Not IPv6, not CIDR. Also: Matches dotted decimals 0–255 per octet. Not IPv6. Not a subnet or CIDR tool. Duplicates removed.