Z

IP Notation Converter

Convert IPv4 and IPv6 between dotted, decimal integer, hex, octal, binary, and canonical / expanded forms. Auto-detects the input format.

Free No signup Client-side Privacy friendly

How to use

  1. 1 Pick IPv4 or IPv6 at the top.
  2. 2 Paste an address in any form — dotted, decimal integer, hex, octal, or binary.
  3. 3 Every other form computes live as you type.
  4. 4 Copy any row with the clipboard button.

Why use this tool

  • IPv4 in eight forms — dotted decimal, decimal integer, hex, dotted hex, dotted octal, binary (dotted and flat), and octal integer.
  • IPv6 with both canonical (with ::) and fully-expanded forms, plus 128-bit decimal integer.
  • Auto-detect on paste — no need to tell the tool which form you used.
  • BigInt-safe for IPv6's 128-bit integer.

Frequently asked questions

What is the decimal integer form for?

Some databases and APIs store IPs as a single integer instead of dotted octets. INET_ATON in MySQL and Postgres's inet_aton equivalent both work with this form.

Why does 0177.0.0.1 work?

Octets with a leading zero are interpreted as octal. 0177 is decimal 127. This matches the long-standing ping / inet_aton convention.

Does it support CIDR ranges?

No — paste a single address only. For network calculations use a dedicated CIDR tool.

Need to convert the integer in another base?

Use our Number Base Converter — feed the decimal integer in and get binary, octal, hex live.

Summary

IP Notation Converter is a free developer utility by Zerethon Tools. Convert IPv4 and IPv6 between dotted, decimal integer, hex, octal, binary, and canonical / expanded forms. Auto-detects the input format. Runs entirely in the browser — no signup, no upload.

Category
Developer
Pricing
Free
Privacy
Browser-based
Signup
Not required

Privacy

Your data never leaves your browser unless explicitly stated. IP Notation Converter runs entirely client-side — no server upload, no logging, no tracking of your input.

Related tools

JSON Formatter

Format, validate, and minify JSON online. Free, no signup — your data never leaves your browser.

Open tool

SQL Formatter

Format SQL queries online — beautify MySQL, PostgreSQL, SQLite, SQL Server, Oracle, and BigQuery.

Open tool

UUID Generator

Generate UUIDs online — v1, v4, v7, and Nil. Bulk generation up to 10,000. Free, no signup.

Open tool

Password Generator

Generate strong, cryptographically random passwords. Configurable length and character sets — runs in your browser.

Open tool

Build, share, and grow on Zerethon Social

Free signup. Earn points, collect achievements, and connect with creators worldwide.

Try Zerethon free