Convert RTF to HTML: Free Online Converter
Convert Rich Text Format to HyperText Markup Language online for free. Fast, secure document conversion with no watermarks or registration.
RTFに対応
アップロードすることで、これらのファイルの権利を有していること、および利用規約に同意することを確認したものとみなされます。
安全な転送
HTTPS暗号化アップロード
プライバシー優先
ゲストのファイルは約2時間で自動削除
登録不要
すぐに変換を開始
どこでも動作
あらゆるブラウザ、あらゆるデバイス
RTF から HTML への設定
- エンジン
- ドキュメント
- 設定
- 設定は不要です。適切な初期値が使われます。
変換方法
アップロードエリアにドラッグするか、クリックして選択し、.rtfファイルをアップロードしてください。
必要に応じて出力設定を調整してください。デフォルト設定ではオリジナルの品質を維持します。
「変換」をクリックし、準備ができたら.htmlファイルをダウンロードしてください。
RTFからHTMLへの変換について
RTF stores formatted text using control word sequences in a plain-text file. HTML stores formatted text using markup tags in a plain-text file. Both are text-based formats that encode formatting inline with content, but they target different rendering environments: RTF for word processors, HTML for web browsers. Converting RTF to HTML translates one text-based formatting system to another, making RTF content viewable in browsers and publishable on the web.
The conversion maps RTF control words to HTML elements: \b becomes <strong>, \i becomes <em>, \par becomes <p>, \trowd/\cell becomes <table>/<td>, and font/color specifications become CSS properties. The result is semantic HTML suitable for web publishing, CMS integration, and email.
RTFをHTMLに変換する理由
RTF content needs HTML conversion for any web-based use. Publishing RTF documents as web pages, blog posts, or CMS entries requires HTML. Email newsletters, web applications, and online archives all render HTML — not RTF. Converting RTF to HTML makes the content available for all web-based consumption.
HTML also makes content accessible. Search engines index HTML natively, screen readers parse HTML semantically, and mobile browsers render HTML responsively. RTF content that is converted to HTML becomes discoverable by Google, accessible to visually impaired users, and responsive on mobile devices — none of which is possible with RTF.
主な活用例
- Publish RTF documents as web pages or blog posts
- Convert RTF content for inclusion in HTML email newsletters
- Make RTF content accessible to search engines and screen readers
- Import RTF text into CMSs (WordPress, Drupal, Ghost) as HTML
- Build a web-based archive of RTF documents with HTML rendering
仕組み
LibreOffice or Pandoc parses the RTF control word syntax and generates HTML output. RTF paragraph formatting maps to HTML block elements: headings to <h1>-<h6>, body text to <p>, list items to <li>. Character formatting maps to inline elements or CSS: \b to <strong> or font-weight:bold, \i to <em>, \ul to text-decoration:underline. Tables are converted to <table>/<tr>/<td> with appropriate attributes. Images from RTF \pict groups are decoded and embedded as Base64 data URIs or saved as separate files. Pandoc produces cleaner, more semantic output; LibreOffice preserves more visual formatting with inline CSS.
品質とパフォーマンス
Text and formatting convert accurately. RTF's formatting model maps cleanly to HTML/CSS, so bold, italic, fonts, colors, tables, and images all transfer. RTF has no concept of semantic headings (it uses formatted text that looks like headings), so heading detection depends on font size and style analysis. Pandoc does better heading inference than LibreOffice. Page-specific RTF features (page breaks, headers, footers) do not apply in HTML's continuous-flow model and are omitted.
デバイス互換性
| Device | RTF | HTML |
|---|---|---|
| Windows PC | Partial | Partial |
| macOS | Partial | Partial |
| iPhone/iPad | Partial | Partial |
| Android | Partial | Partial |
| Linux | Partial | Partial |
| Web Browser | No | No |
最良の結果を得るためのヒント
- 1Use Pandoc engine for cleaner, more semantic HTML output
- 2Strip unnecessary inline styles if integrating with an existing website theme
- 3Review heading structure — RTF has no semantic headings, so they are inferred from formatting
- 4Test the HTML on mobile to verify that content flows correctly on narrow screens
- 5Check that images decoded correctly from RTF's hex-encoded format
関連する変換
RTF to HTML makes formatted text content available for web publishing, email, and CMS integration. The conversion maps RTF's formatting to semantic HTML cleanly.
RTFとHTMLの比較
| 特徴 | RTF | HTML |
|---|---|---|
| 正式名称 | Rich Text Format | HyperText Markup Language |
| 拡張子 | .rtf | .html |