Convert dotted IPv4 addresses to unsigned 32-bit integers and back.
Type or paste on the left — the result updates as you type.
Uses network byte order. Octets must be 0–255 without leading zeros; integers must be 0–4294967295.
Up to 100,000 UTF-16 units per input and 1,000,000 per result. See the supported formats and examples below.
Tool page updated: 2026-09-27
