Binary to IP Converter

How to Use Binary to IP Converter

1. Paste binary digits - one IP per line. Spaces, dots, colons, and underscores are stripped before parsing, so 11000000.10101000.00000001.00000001 works as easily as the same string with no separators.
2. Pick a version, or leave on Auto. Auto-detect reads the line length: 32 bits → IPv4, 128 bits → IPv6, anything else → error. Force a specific version when you want strict validation.
3. Choose IPv6 format. Canonical (default, per RFC 5952) uses lowercase hex, strips leading zeros per group, and collapses the longest zero run to ::. Full keeps all 32 hex digits with leading zeros - handy for alignment in tables.
4. Read the classification notes. Each decoded IP is followed by # Class X, private (RFC 1918 …), etc. For IPv4 you’ll see class A/B/C/D/E plus any special-range flags. For IPv6 you’ll see loopback, link-local, unique-local, multicast, or documentation.
5. Watch the stats line: total lines · IPv4 count · IPv6 count · private count · loopback count · multicast count · validity summary. Useful when verifying a batch of addresses all fall in the expected range.
6. Fix errors inline. Bad lines (wrong length, non-binary chars) show ERROR: expected 32 bits for IPv4, got 31 or similar, named with exact counts / positions. Other lines still decode cleanly.
7. Copy or download the output. Ctrl+Enter / Cmd+Enter runs convert + copy together.