Markdown to BMP Converter
FileFlip converts Markdown to BMP entirely inside your browser, using Pandoc, MuPDF and ImageMagick compiled to WebAssembly. The file is never uploaded to a server: it is read off your disk, converted on your own machine, and saved back by the browser. That means no file-size limit, no queue and no account.
How do I convert an Markdown file to BMP?#
- Drop your Markdown file onto the converter at the top of this page, or click it to pick one from your computer. You can add as many as you like.
- Leave the target set to BMP and the conversion starts on its own. FileFlip downloads 79.9 MB of WebAssembly the first time and nothing after that, then runs Pandoc, MuPDF and ImageMagick on your own machine.
- Save the BMP file. Your browser writes it straight to your downloads folder, because there was never a server holding it.
Does converting Markdown to BMP lose quality?#
Yes, in the sense that text stops being text. Each Markdown page is rendered to pixels and handed to BMP, so the result looks right and can no longer be selected, searched, or reflowed.
Is it safe to convert Markdown files online?#
Yes, because nothing is uploaded. FileFlip converts Markdown files inside the browser tab you already have open, using WebAssembly builds of the same engines a desktop converter would install. Your file is read from your own disk into the page's memory, and no request carrying it is ever made.
You do not have to take that on trust. Open your browser's network panel, run a conversion, and you will see the engine come down and your file go nowhere. There is no upload, no server-side copy, no retention window, and no account tied to what you converted.
How FileFlip works lists every engine, its version and its download size, and shows how to check for yourself that nothing leaves your machine.
What Markdown to BMP actually does to the file#
Converting Markdown to BMP runs on Pandoc, MuPDF and ImageMagick, downloads 79.9 MB of WebAssembly the first time and nothing after that, renders each page to pixels, keeps page layout, and drops selectable text and transparency.
| Engine | Pandoc, MuPDF and ImageMagick |
|---|---|
| Conversion path | 3 steps: Markdown → HTML → PNG → BMP |
| Downloaded to your browser | 79.9 MB, once, then cached by your browser |
| Quality | Text becomes pixels |
| You get back | One image per page, zipped when the source has several |
| Where it runs | In a background worker, so the page stays responsive |
What survives the conversion
| What is in the file | This conversion | Why |
|---|---|---|
| Selectable text | Dropped | The target format has nowhere to put it. |
| Page layout | Kept | Carried through into the converted file. |
| Transparency | Dropped | The target format has nowhere to put it. |
Worth knowing before you start:
- pages render at twice their point size in opaque RGB, roughly 144 DPI, with no transparency
- reflowable input is laid out on a fixed 595x842pt page at 11pt before anything else happens
- the file passes through HTML on the way, so anything HTML cannot express does not survive
What is an Markdown file?#
An MD file holds Markdown, John Gruber's 2004 plain-text markup that uses light punctuation such as # and * for structure and converts to HTML, while still reading cleanly as unformatted text on its own.
Write in Markdown when the document is prose with light structure that will be read as either rendered HTML or plain text, like a README or a blog post.
Convert Markdown to a heavier format when the document needs something Markdown was never designed for, such as page layout, citations, or a footnote style a specific target requires.
What is a BMP file?#
A BMP file holds a device-independent bitmap: a pixel grid stored with a Microsoft-defined header and, in the overwhelming majority of BMP files in the wild, no compression at all.
Use BMP when a Windows-native application, printer driver, or legacy tool specifically expects it, or when pixel data has to be stored with zero encoding overhead for a processing pipeline.
Convert BMP to PNG or JPEG for anything leaving that pipeline, since both produce a far smaller file and PNG matches BMP's lossless, generation-safe quality.
Markdown to BMP questions people ask#
Who invented Markdown and why?
John Gruber created Markdown in 2004 as a text-to-HTML tool for web writers, with Aaron Swartz acting as an early sounding board. The goal was a plain-text syntax that stayed readable even before conversion, so a Markdown file never looks like it's covered in tags the way raw HTML does.
Why do Markdown tables look broken when I paste them somewhere else?
Tables were never part of Markdown's original 2004 specification, so every tool that added them, GitHub Flavored Markdown, MultiMarkdown, Pandoc, invented its own pipe-and-dash syntax independently. A table written for one renderer often shows up as literal text or breaks its alignment in another.
What is CommonMark and how is it different from Markdown?
CommonMark is a 2014 specification, backed by John MacFarlane of Pandoc along with engineers from GitHub, Reddit and Stack Overflow, that defines Markdown's grammar unambiguously with a full test suite. It exists because Gruber's original description left enough edge cases undefined that independent Markdown parsers had drifted apart; CommonMark is the fix, not a replacement syntax.
Does Markdown support footnotes?
Plain Markdown and CommonMark have no footnote syntax at all. MultiMarkdown and PHP Markdown Extra both added one, and Pandoc's Markdown follows a similar convention, but GitHub Flavored Markdown's own specification does not define footnotes, so a footnote written for one of those dialects can silently fail to render in another.