無料のIPアドレスジェネレーターを使用して、ランダムIPv4アドレスを即座に生成。テスト、開発、教育目的に最適。最高のオンラインランダムIPアドレスジェネレーターツール。
This tool creates random IPv4 addresses in the familiar dotted format (four octets). Developers, students, and technical writers use disposable addresses when they need examples for screenshots, unit tests, network diagrams, or classroom worksheets—without copying production IPs from a live system.
Generation is local: your browser builds valid-format addresses when you click. That keeps demos fast and avoids sending sample values to a backend. Remember that a random address is not a guarantee of public routability or permission to connect; treat outputs as fictional examples unless you control the network.
ODLUCK also offers other random utilities—numbers, letters, passwords—for mixed fixture data. Use this page when you specifically need IPv4-shaped strings.
Random IPs help documentation stay realistic without leaking infrastructure details. They also help beginners practice reading octets and talking about private versus public ranges. They are not permission to scan, probe, or abuse networks. Keep classroom ethics clear: examples on a slide are not targets.
No sample addresses yet — choose a count and generate disposable IPv4 examples for docs or mocks.
以下の簡単な手順に従って、IPアドレスジェネレーターでランダムIPアドレスを生成します:
スライダーを使用して、生成するIPアドレスの数(1〜10)を選択します。ランダムIPアドレスジェネレーターを使用します
"IPアドレスを生成"ボタンをクリックして、ランダムIPv4アドレスを即座に作成します
生成されたIPアドレスをクリックしてクリップボードにコピーし、簡単に使用できます
Use random IPs for learning and fiction—not for unauthorized scanning or abuse.
Replace real customer IPs in docs with clearly fake examples so guides stay realistic without leaking infrastructure details.
Generate sample values for validators, parsers, and UI fields that expect IPv4 formatting.
Instructors can display random addresses while explaining octets, private ranges, and why some addresses are reserved.
Fill whiteboard topologies with disposable addresses during design discussions.
Need other random values for fixtures or classroom kits?