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  1. Home
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  5. Sort IP Addresses

Sort IP Addresses

Sort IPv4 addresses numerically. One IP per line. Correct numeric order (e.g. 2.0.0.1 before 10.0.0.1).

Read the guide

Sorted IPs

Output will appear here...

Guide and examples

Sorting IP addresses so 2.0.0.1 comes before 10.0.0.1 usually requires numeric comparison by octet. The Sort IP Addresses tool does it in the browser: paste one IP per line, and get IPv4 addresses sorted numerically—no sign-up and no data sent to a server.

What does Sort IP Addresses do?

Sort IP Addresses is a free online tool that sorts IPv4 addresses numerically by octet so that 2.0.0.1 comes before 10.0.0.1. One IP per line. Invalid lines are kept at the end. It is used to order IP lists for firewall rules, subnets, or logs so the order matches numeric meaning, not string order. All processing runs in your browser; there is no upload, no storage, and no account required.

Key Features

  • Numeric by octet — Each octet is compared numerically. So 2.0.0.1 comes before 10.0.0.1. Invalid IPs are kept but sorted to the end.
  • Ascending or descending — Sort smallest to largest or largest to smallest.
  • One IP per line — Paste or type with one IPv4 address per line. No size limit for in-browser processing.
  • Instant result — Paste, set order, and see the sorted list. Copy when ready.
  • Privacy-first — All processing happens in your browser. Your text is never sent to any server.
  • No account — Use as often as you need without sign-up.

How to Use Sort IP Addresses

  1. Open the Sort IP Addresses tool.
  2. Paste or type your IPs (one per line).
  3. Choose ascending or descending. View the sorted result. Copy the result.
  4. Paste into firewall config, subnet list, or log analysis. Use the "Use tool" button on the docs page if you are reading this from the documentation.

Real Use Cases

  • Firewall and ACLs — Order IP allow/deny lists so the order is correct for rules (e.g. 2.x before 10.x).
  • Subnets and ranges — Sort IPs for subnet planning or range review.
  • Logs and analysis — Sort IPs in log output or exports for consistent ordering.
  • Fix string sort — If you sorted IPs as text and got 10.0.0.1 before 2.0.0.1, paste here and sort numerically.
  • Import and export — Order IP lists before import or for reports.
  • Deduplication prep — Sort first so duplicate IPs are adjacent, then dedupe if needed.

Why Use Sort IP Addresses Instead of Alternatives?

  • vs. Sort Text — Sort Text sorts alphabetically (10 before 2). Sort IP Addresses sorts by octet value so 2.0.0.1 comes before 10.0.0.1.
  • vs. Sort Numbers — Sort Numbers treats each line as one number. IPs have four octets; this tool compares them correctly.
  • vs. Manual reorder — No need to reorder by hand. One paste, set order, copy.
  • vs. Scripts — No coding. Works in any browser.

That (10 before 2) is string order. Use this tool so IPs are sorted by octet value; then 2.0.0.1 will correctly come before 10.0.0.1.

Benefits for Network Admins, Developers, and Analysts

  • Network admins — Order firewall or ACL lists correctly. Subnet and range review.
  • Developers — Sort IP lists for config or tests. No one-off script.
  • Analysts — Order IPs in logs or exports for analysis.

Common Mistakes

  • 10.0.0.1 before 2.0.0.1 — That is string (alphabetic) order. Use this tool so IPs are sorted by octet value; then 2.0.0.1 will correctly come before 10.0.0.1.
  • Invalid IPs — Invalid lines are kept but sorted to the end. Clean or fix invalid lines if you need strict numeric order throughout.
  • IPv6 — Tool is for IPv4. IPv6 may not sort correctly; check the tool description.
  • Forgetting to copy — The result is not saved. Copy before closing the tab or refreshing.

Frequently Asked Questions

What does sort IP addresses do?

It sorts IPv4 addresses numerically by octet so that 2.0.0.1 comes before 10.0.0.1. One IP per line. Invalid lines are kept at the end.

How is IP order determined?

Each octet is compared numerically. So 2.0.0.1 comes before 10.0.0.1.

Are invalid lines included?

Invalid IPs are kept but sorted to the end. You can choose ascending or descending.

Is my text stored?

No. All processing happens in your browser. Your text is never sent to any server.

When should I use sort IP addresses?

Use it to order IP lists for firewall rules, subnets, or logs so the order matches numeric meaning, not string order.

Why is 10.0.0.1 before 2.0.0.1?

That is string (alphabetic) order. Use this tool so IPs are sorted by octet value; then 2.0.0.1 will correctly come before 10.0.0.1.

Conclusion and Try the Tool

Sort IP Addresses gives you numerically sorted IPv4 addresses in seconds: paste, set order, copy. No account, no server round-trip. For plain numbers use Sort Numbers, for alphabetic sort use Sort Text, and for filtering use Filter Text Lines.

Use the Sort IP Addresses tool to sort IPs numerically.

Frequently Asked Questions

It sorts IPv4 addresses numerically by octet so that 2.0.0.1 comes before 10.0.0.1. One IP per line. Invalid lines are kept at the end.

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