Client-side conversion — your files never leave your browser. Fast, private, and completely free.
Drag & drop or click to browse. Supports EPUB, PDF, TXT, HTML, FB2, RTF, and Markdown.
Click to upload or drag and drop
EPUB, PDF, TXT, HTML, FB2, RTF, MD — up to 50 MB
Choose your target format and convert instantly.
All processing happens in your browser — nothing is uploaded.
The Ebook Converter lets you switch between ebook formats directly in your browser. Upload an EPUB and get a PDF. Take a plain text file and wrap it into an EPUB. Convert HTML pages into something your e-reader can actually display. It handles EPUB, PDF, TXT, HTML, FB2, RTF, and Markdown.
Here is the thing about ebook formats: they are a mess. Your Kindle wants MOBI or KPF. Kobo prefers EPUB. Some older readers only handle PDF reliably. And if you are an author or publisher working with drafts in Markdown or HTML, getting from "writing format" to "reading format" usually means installing Calibre or paying for a cloud service. This tool handles the common conversions without any of that overhead.
Ebooks can be deeply personal — your annotations, your reading history, your library. When you convert a file here, everything happens inside your browser using browser-based processing engines. The file is parsed in memory, transformed, and offered as a download. No upload. No server. No trace.
This is especially relevant if you are converting DRM-free ebooks you have purchased. Uploading purchased content to third-party converters raises both privacy and legal grey areas. Processing locally sidesteps both concerns entirely.
The converter preserves chapter structure, headings, paragraphs, and basic text styling. Images embedded in the EPUB will carry over too. Complex CSS layouts may simplify in the PDF output, but the reading experience stays intact.
No. DRM-protected files are encrypted and cannot be read by browser-based tools. This converter works with DRM-free files only — the kind you get from most independent publishers, Project Gutenberg, or DRM-free stores.
FictionBook (FB2) is an XML-based ebook format popular in Russia and Eastern Europe. It stores content in a structured way that makes it easy to reflow text across different screen sizes. If you have .fb2 files from Russian ebook stores, this tool can convert them to more widely supported formats like EPUB or PDF.
EPUB files bundle images inside a ZIP container. When converting EPUB to PDF, those embedded images are extracted and placed inline at their original positions in the text. Converting to TXT strips images entirely — plain text simply cannot hold binary image data. If you go EPUB to HTML, images are extracted as separate files referenced in the output markup. Cover art follows the same rules: it transfers cleanly to PDF and HTML but disappears in TXT and Markdown output since neither format supports embedded graphics.
Since everything runs in your browser's memory, the practical limit depends on your device rather than any server restriction. Most ebook files are well under 10 MB — even image-heavy ones — and any modern phone or laptop handles those without breaking a sweat. A typical 500-page novel in EPUB format weighs in at 1–3 MB. Graphic novels or textbooks packed with illustrations might reach 50–100 MB. Those will still work, but expect longer processing times on older hardware or budget mobile devices.
This tool handles open formats (EPUB, PDF, FB2). Kindle formats are DRM-protected, making browser conversion unreliable. Use Amazon's export tools to get a DRM-free version first.
Write content in HTML or Markdown, then convert here. The tool builds a valid EPUB package with table of contents, metadata, and proper structure.
EPUB chapter structure converts to PDF bookmarks. Plain text and Markdown keep chapter order and headings but lose the clickable navigation links.
There’s no hard limit in the EPUB specification. The tool handles books with hundreds of chapters without issues — the navigation document (table of contents) scales to whatever your book needs. Each chapter is a separate internal file within the EPUB package, and modern e-readers handle deep and complex navigation structures efficiently without any performance issues. If you’re combining a long blog series or course with many short lessons, don’t worry about hitting a ceiling.