IP List Validator
Check a list of IP addresses in one go. Paste one IP per line and see which lines are valid IPv4, which are valid IPv6, and which aren’t valid. No server round-trip — validation runs in your browser. Handy for cleaning logs, configs, or spreadsheets before you run a bulk lookup or import.
Validate Your IP List
Paste one IP per line. We’ll show valid IPv4, valid IPv6, or invalid.
What Is an IP List Validator?
An IP list validator takes a list of strings (one per line) and checks whether each line is a valid IPv4 or IPv6 address. It doesn’t look up the IP on the internet — it only checks the format. So you can quickly see which lines in your file are valid addresses and which are typos, hostnames, or garbage. That’s useful before you feed the list into a bulk IP lookup or bulk reverse DNS tool, or before importing into a spreadsheet or script.
For a single IP, use our IP address validator. For geolocation or hostname after validation, use IP lookup or reverse DNS lookup.
How to Use the IP List Validator
Paste your list into the text box. Each line should contain one IP (or something you’re not sure about). Empty lines are ignored. As you type or paste, the results table updates: each line is marked as Valid IPv4, Valid IPv6, or Invalid. There’s no submit button and no data is sent to a server. For generating valid IPs to test with, try our IP generator or random IP generator. For converting between formats, use IP format converter or IPv4 to IPv6.
Features
- Validates every line as IPv4 or IPv6
- No limit on list size; runs in browser
- Instant feedback; no data sent to server
- Summary counts: valid vs invalid, IPv4 vs IPv6
Why Use This Tool
Clean data before bulk lookups or imports. Find typos in configs or firewall rules. Combine with IP range generator if you generated a range and want to double-check it. After validation, run ping test or traceroute on specific IPs if you need reachability.
FAQs
What does IP list validator do?
It checks each line of your list and tells you whether it’s a valid IPv4 address, valid IPv6 address, or invalid. It doesn’t look up the IP — it only validates format.
Does it check if the IP is reachable?
No. Validation is format-only. To see if an IP is reachable, use our ping test or port checker. To get location, use IP lookup.
Can I validate thousands of IPs?
Yes. Validation runs in your browser and there’s no server limit. Very long lists might take a moment to process.
Is the IP list validator free?
Yes. Everything runs locally. We don’t send your list anywhere or store it.
What’s the difference from IP address validator?
IP address validator checks one IP. IP list validator checks a whole list (one IP per line) and shows which are valid and which aren’t.