What this tool does
It validates whether each line is a real IPv4 or IPv6 address, and it can also validate CIDR notation when that option is enabled.
IP Address Validator
Validate IPv4, IPv6, and optional CIDR network notation directly in your browser. This tool also classifies addresses as private, public, loopback, link-local, documentation, and more, and nothing you paste here is uploaded or stored in server memory.
Blank lines are ignored. You can paste a mixed list and validate it all at once.
This export is useful when you want a cleaned list of valid entries only.
Entries
0
Valid
0
Invalid
0
IPv4
0
IPv6
0
Validation results
Each result includes the normalized value, IP version, address type, and a plain-language classification.
Why it is private
All parsing, validation, and classification happen locally in the browser, so your IP list never touches server memory.
What the classifications mean
- Private / unique local: intended for internal networks, not normal public internet routing.
- Loopback / link-local: special local-use addresses for the same host or nearby network segment.
- Documentation: example ranges reserved for docs, tutorials, and sample configs.
Helpful note
When CIDR is enabled, entries like 192.168.1.25/24 are normalized to the network base so the cleaned export is consistent.