TXT to EPUB Converter

A text file cannot say what is a heading, so chapter detection works on patterns. A line on its own that starts with Chapter, Part, Book, Prologue or Epilogue, or a line holding only a number or a Roman numeral, with blank lines around it, is taken as a chapter title. Calibre, the free desktop e-book manager, uses a similar pattern-based approach for text input, and it suits most novels. A text that numbers chapters inside a sentence, or has no blank lines at all, comes out as one long chapter.

Line wrapping is the other job. Many plain-text books, Project Gutenberg's among them, break every line at about 70 characters and separate paragraphs with a blank line. Copied into an e-book unchanged, those breaks would chop sentences in half on a phone, so the converter joins the lines of each paragraph and lets the reader wrap them to the screen.

Plain text predates every e-book format. Gutenberg began with the US Declaration of Independence on a university mainframe, and today web-novel sites, fan fiction archives, note apps and old floppy-disk collections all export .txt because any device can open it. What none of them can give you is a reading experience: an e-reader shows a long text file as one endless scroll with no way to jump to chapter 30. Converting to EPUB fixes that without retyping anything.