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MD to FB2 converter, without the upload.

Turn MD Markdown files into FB2. It is converted in your browser, so the file never leaves your device.

Drop MD files here

or choose from your computer paste with Ctrl V

Ready · other file types work too0 bytes uploaded, ever

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How to convert MD to FB2

  1. Add your MD Markdown files

    Drop MD (Markdown) files onto the box above, or click it to choose them. ToAny reads the file's contents to detect the type, so a wrong extension does not matter.

  2. FB2 is already chosen

    Press Convert. There is nothing else to set. The work happens in this tab.

  3. Download

    Save the FB2, or download everything as one ZIP if you converted several files.

Why ToAny

  • Private by construction

    The MD to FB2 converter is part of this page and runs inside your browser. Your Markdown files are never sent to ToAny or to anyone else.

  • No upload, no queue

    Nothing has to travel to a server and back, so the conversion starts the moment you press Convert, even on a slow connection.

  • Free, without an account

    No sign-up, no email address and no watermark. Add several files and download them together as a ZIP.

MD to FB2: what to expect

Markdown shows its raw symbols to anyone who opens it without a Markdown-aware app. FB2 is a clean, open e-book format that many readers support. MD is at home in READMEs, notes and documentation; FB2 is the usual choice for e-books, especially from Russian-language libraries.

GitHub-flavoured Markdown is understood: tables, task lists, strikethrough and fenced code blocks. Headings become sections; a heading that arrives after a section's text has begun becomes a subtitle instead, because FictionBook does not allow a section to mix text and subsections.

MD vs FB2

MD

Markdown

Markdown is plain text with a few symbols for headings, lists, links and emphasis. It is readable as-is and converts cleanly to HTML, which is why developers and note-takers favour it.

Opens in Any text editor; rendered by GitHub, Obsidian, Notion and many note apps

MD converter
FB2

FictionBook e-book

FB2 is an XML e-book format that separates a book's structure from its looks: sections, poems, epigraphs and notes are marked up, and the reader decides the layout. Images sit inside the file as base64 text. It is very common in Russian-language libraries.

Opens in FBReader, Calibre, PocketBook and most e-reader apps; not Kindle

FB2 converter
MD compared with FB2
MDMarkdownFB2FictionBook e-book
Stands forMarkdownFictionBook 2
TypeLightweight markup textE-book
CompressionNoneNone (plain XML; often zipped as .fb2.zip)
Introduced2004, by John Gruber2004, by Dmitry Gribov
Opens inAny text editor; rendered by GitHub, Obsidian, Notion and many note appsFBReader, Calibre, PocketBook and most e-reader apps; not Kindle
Best forREADMEs, notes and documentationE-books, especially from Russian-language libraries
File extension.md, .markdown.fb2

Questions

Are my Markdown files uploaded anywhere?

No. The MD to FB2 conversion runs inside your browser, on your own phone or computer. The file is not sent to ToAny or to anyone else.

Is anything lost when converting MD to FB2?

Text is kept. Formatting carries over only as far as FB2 supports it.

Can I convert several MD files at once?

Yes. Add as many as you like, convert them together and download each result or all of them as one ZIP.

How do I convert MD to FB2 on Windows, Mac, iPhone or Android?

The steps are the same everywhere because ToAny runs in the web browser: open this page in a current version of Chrome, Edge, Safari or Firefox, add the MD file, press Convert and save the FB2. There is nothing to install.

Is there a file size limit?

Yes. Files up to 150 MB are accepted; a larger one is refused with a message. Beyond that the limit is your device's memory, since nothing is uploaded; a computer copes with large files better than a phone.