Convert TXT to DOCX: Free Online Converter
Convert Plain Text to Microsoft Word Open XML online for free. Fast, secure document conversion with no watermarks or registration.
TXT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。
変換設定: ファイルを追加すると調整できます
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
TXT から DOCX への設定
- エンジン
- ドキュメント
- 設定
- 調整できる設定: 1
- Page Size
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、.txt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.docxファイルをダウンロードしてください。
TXTからDOCXへの変換について
TXT files contain pure text data with no formatting markup: the most basic and universally compatible file format. DOCX is the modern Word document format introduced with Office 2007, storing content as ZIP-compressed XML with full support for fonts, styles, images, tables, formulas, tracked changes, comments, and collaborative editing. DOCX is the standard document format for Microsoft 365, Google Docs, and LibreOffice Writer.
Converting TXT to DOCX is the most straightforward path from raw text to a fully featured document. The DOCX format provides everything that plain text lacks: professional typography, page layout, document structure, and compatibility with modern collaboration tools. This is the recommended conversion for anyone working with modern word processing workflows.
TXTをDOCXに変換する理由
DOCX enables everything that TXT cannot: visual formatting (fonts, sizes, colors, bold, italic), document structure (heading styles, table of contents, page numbers), collaboration features (tracked changes, comments), and professional layout (margins, columns, headers, footers). When plain text content needs to become a professional document, DOCX is the target format.
Modern document workflows revolve around DOCX. Microsoft 365 and Google Workspace enable real-time co-editing of DOCX files. Converting a TXT draft to DOCX immediately enables collaborative review, comment threads, and revision tracking. Academic papers, business proposals, contracts, and reports all start as text ideas and end as formatted DOCX documents.
主な活用例
- Convert draft text manuscripts into DOCX for collaborative editing with publishers and editors in Microsoft 365
- Transform configuration documentation and README files into professional DOCX format for client deliverables
- Import plain text lecture notes into DOCX for formatting as course handouts with headings and page numbers
- Convert text-based legal transcripts into DOCX documents for annotation and review by attorneys
- Transform exported chat logs or email text into DOCX for organized project documentation
仕組み
LibreOffice detects the TXT file's character encoding (UTF-8, UTF-16, Latin-1, ASCII) and reads the content line by line. Each line becomes a paragraph in the DOCX output. The text is wrapped in Open XML markup (ECMA-376 standard) with default paragraph styles, font settings (typically Calibri 11pt), and standard page margins. The DOCX file is structured as a ZIP archive containing document.xml (content), styles.xml (formatting definitions), and supporting XML files. The output is compatible with Word 2007+, Google Docs, LibreOffice Writer, and Apple Pages.
品質とパフォーマンス
Every character from the TXT file is preserved exactly in the DOCX output, including Unicode characters, whitespace, and special symbols. Encoding detection ensures that international characters, accented letters, CJK text, and emoji are handled correctly. The conversion produces a clean, unformatted DOCX that serves as an ideal starting point for applying styles. Tab characters are preserved and can be used for basic column alignment, though proper tables are recommended for structured data.
デバイス互換性
| Device | TXT | DOCX |
|---|---|---|
| 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
- 1Structure your TXT with blank lines between paragraphs for clear paragraph separation in the DOCX output
- 2After conversion, use Word's built-in Styles (Heading 1, Heading 2, Body Text) for professional formatting in seconds
- 3Save TXT files as UTF-8 before converting to ensure all special characters and international text transfer correctly
- 4For manuscripts, double-space the text in the TXT file or apply double spacing in Word after conversion
- 5Use the DOCX output's Navigation Pane in Word to quickly apply headings and generate a table of contents
関連する変換
TXT-to-DOCX conversion is the standard way to bring plain text into the modern document editing ecosystem, enabling formatting, collaboration, and professional output in the universally accepted DOCX format.
TXTとDOCXの比較
| 特徴 | TXT | DOCX |
|---|---|---|
| 正式名称 | Plain Text | Microsoft Word Document |
| 拡張子 | .txt | .docx |