HTML Entity Encoder & Decoder
Convert special characters to HTML entities and back
使い方
- 1Paste your text or HTML
Drop text with special characters, or HTML with entities.
- 2Pick encode or decode
Encode turns < into <. Decode turns < back into <.
- 3Copy the result
Copy the escaped or unescaped output with one click.
HTML Entity Encoder & Decoder について
Free online HTML entity encoder and decoder. Convert <, >, &, quotes, and other special characters to their HTML entity form (<, >, &) or decode entities back to plain text. Supports named entities and numeric references. 712 Tools の HTML Entity Encoder & Decoder はモダンな JavaScript API を使って完全にブラウザ内で動作します - サーバーがあなたのデータを見ることは一切ありません。つまり、即時の結果、完全なプライバシー、アップロード制限なしです。
デバッグ、簡単な確認、あるいは本番のインシデント対応まで - このツールは何度でも無料で使えます。ウォーターマークなし、サインアップなし、ツール内広告なし。
よくある質問
Which characters get encoded?
The five HTML5 essentials - <, >, &, ", ' - plus non-breaking space and any character above U+007F on request.
Does it handle numeric entities like —?
Yes. Both named entities (—) and decimal/hex numeric references (— / —) decode correctly.
Should I encode ' as '?
' is HTML5-valid but not HTML4 - some older mail clients render it literally. This tool encodes to ' instead for maximum compatibility.
Is my text uploaded?
No. All encoding runs locally in your browser.
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