フォーマッター＆コード
ユーザーエージェントパーサー
Browser, OS, device and engine from any UA string.
Runs in your browser
編集者注
Understanding · A string that lies to you, on purpose.
この詳細な解説章は現在、英語版のみで提供されています。上の変換ツールはあなたの言語で動作しますが、長文の解説記事はまだ翻訳されていません。
よくある質問
Quick answers.
›What information is in a user agent?
It typically identifies the browser name and version, the host operating system, and the layout engine like `Blink` or `WebKit`. Mobile strings also include specific device models.
›Is the parsing done on a server?
No. The logic runs in your browser using local JavaScript, meaning your identifier is never logged or stored on our infrastructure.
›Why do many strings look like 'Mozilla/5.0'?
This is a legacy convention from the early web. Most modern browsers include it for backward compatibility with older servers that search for that specific prefix.
›Can I check my own user agent?
Yes. Upon loading, the tool automatically detects and parses the string your current browser is broadcasting to websites.
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