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How to Convert TXT to EPUB — Quick & Free

Fast, instant TXT to EPUB conversion. No signup required. Just drop your .txt file and get .epub in seconds.

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長年親しんだテキストファイル(.txt)を、電子書籍の国際標準フォーマットであるEPUBへ変換するサービスへようこそ。ご自身の小説やビジネス文書、あるいはウェブから保存したお気に入りの文章など、様々なテキストコンテンツを、より洗練された形で読書体験へと昇華させます。EPUB形式は、デバイスの種類を問わず最適な表示を可能にし、フォントの選択、文字サイズの調整、そして何よりも「しおり」や「目次」といった電子書籍ならではの機能が、長文を読む際の快適さを格段に向上させます。特に、縦書き表示への対応は、日本の読書文化において非常に重要な要素です。この変換ツールは、お客様の貴重なテキストデータを、より読みやすく、より管理しやすいEPUBファイルへと生まれ変わらせるお手伝いをいたします。ぜひこの機会に、新しい読書の世界を体験してください。

  • 自作のライトノベルを電子書籍化
  • ビジネスレポートや議事録の共有
  • ウェブ小説やブログ記事のオフライン読書

日本のテキスト文化に深く根ざした縦書き表示は、EPUB変換時に特に注意すべき点です。多くのEPUBリーダーは縦書きに対応していますが、変換後のレイアウト確認をお勧めします。

About TXT to EPUB Conversion

Short answer: yes, you can convert TXT to EPUB online for free, and quality is well preserved with the right settings. Just upload your .txt file to CocoConvert, pick EPUB as the output, and click Convert. The whole process takes seconds.

Now for the details. TXT is plain text with no formatting — universally readable by any device. EPUB is the standard e-book format supported by most readers except Kindle. Converting between these two formats lets you upgrade to a modern format.

Full Name: TXT uses Plain Text, while EPUB uses Electronic Publication. Compression: TXT uses None (uncompressed), while EPUB uses Lossless. Typical File Size: TXT uses <1 KB–1 MB, while EPUB uses 1–20 MB.

Your TXT file is decoded and re-encoded as EPUB. Converting TXT to EPUB maintains high quality with CocoConvert's optimised encoder settings.

CocoConvert runs entirely online — no software to install, no account to create. Your files are encrypted during upload (TLS), processed on isolated servers in Germany, and permanently deleted after 24 hours. It works in Chrome, Safari, Firefox, Edge, and all mobile browsers.

Need to convert more than one file? Free users can do 5 per hour. Pro gets 100 per hour with files up to 5 GB each.

How to Convert TXT to EPUB

  1. 1

    1. Upload TXT

    Drop your .txt file onto the page (or tap "Browse" on mobile). Add multiple files for batch conversion.

  2. 2

    2. Select EPUB

    Choose .epub from the output dropdown. Settings are pre-configured for best results.

  3. 3

    3. Convert

    One click. The server handles all the heavy lifting using FFmpeg and Sharp.

  4. 4

    4. Download

    Your .epub file is ready. Download it directly or get all files as a zip archive.

What Happens When You Convert TXT to EPUB

Your TXT file is decoded and re-encoded as EPUB.

1

Your TXT file is uploaded and the format is validated

2

The file content is decoded into its raw representation

3

The data is re-encoded in EPUB format with optimal settings

4

The converted file is ready for download

TXT vs EPUB — Detailed Comparison

Feature.TXT.EPUB
Full NamePlain TextElectronic Publication
CompressionNone (uncompressed)Lossless
Typical File Size<1 KB–1 MB1–20 MB
Platform SupportUniversalVery Wide
Browser SupportUniversalnone
Year Created19632007
Open StandardYesYes

Should You Convert TXT to EPUB?

When to Convert

  • You need just the audio track from a video recording
  • You're creating a podcast or audio file from video content

Frequently Asked Questions

Is TXT to EPUB conversion free?

Yes. CocoConvert offers free TXT to EPUB conversion with generous daily limits — 25 minutes of processing time and up to 5 files per hour (250 MB each). Pro plans remove these limits.

How fast is TXT to EPUB conversion?

Most files convert in 2–10 seconds depending on size. Large document files may take 30 seconds. Batch jobs process in parallel for maximum speed.

What happens to my files after conversion?

Your uploaded TXT file and the converted EPUB file are both automatically deleted from our servers within 24 hours. They are never shared, sold, or analysed.

Does converting TXT to EPUB lose quality?

Converting TXT to EPUB maintains high quality with CocoConvert's optimised encoder settings.

Can I convert EPUB back to TXT?

Yes, CocoConvert supports EPUB to TXT conversion as well. However, if the original conversion involved lossy compression, converting back won't recover the lost data.

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