AsciiDoc Converter
FileFlip converts AsciiDoc files into 61 other formats entirely inside your browser, using Pandoc, MuPDF and ImageMagick compiled to WebAssembly. The AsciiDoc file is never uploaded to a server: it is read off your disk, converted on your own machine, and saved back by the browser. There is no file-size limit and no account to create.
How do I convert an AsciiDoc file?#
- Drop your AsciiDoc file onto the converter at the top of this page, or click it to pick one from your computer.
- Choose the format you want out of it. FileFlip downloads the engine that conversion needs, once, and your browser caches it.
- Conversion starts the moment you pick the format, and the result is yours to download. The work happens in this tab, so nothing is uploaded and nothing is queued.
Is it safe to convert AsciiDoc files online?#
Yes, because nothing is uploaded. FileFlip converts AsciiDoc 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 happens to a AsciiDoc file#
FileFlip converts AsciiDoc into 61 formats with Pandoc, MuPDF and ImageMagick, all of it inside the browser tab. Each conversion below names the engine it uses, what it downloads, and exactly what that conversion keeps or drops.
| Category | Documents |
|---|---|
| File extension | .adoc |
| FileFlip support | Read and written |
| Conversions available | 61 |
| Engines | Pandoc, MuPDF and ImageMagick |
| Downloaded to your browser | 65.8 MB on the first conversion, then cached |
What is an AsciiDoc file?#
An ADOC file holds AsciiDoc, a plain-text markup Stuart Rackham designed in 2002 with structural features like admonitions, includes and cross-references built into the syntax rather than bolted on afterward.
Choose AsciiDoc for technical documentation or a book that needs admonitions, includes and cross-references without hand-writing DocBook.
Convert AsciiDoc to Markdown when a document is moving to a tool or audience that only understands Markdown, accepting that admonitions, includes and cross-references have no Markdown equivalent.
The AsciiDoc file format reference covers the specification, the programs that open one, and what each conversion keeps or drops.
AsciiDoc questions people ask#
What's the difference between AsciiDoc and Markdown?
AsciiDoc is a plain-text markup built for technical documentation, with admonitions, file includes and cross-references defined in the syntax itself, where Markdown has none of these without an extension or raw HTML. AsciiDoc is correspondingly more to learn, and far fewer tools render it without going through a processor like Asciidoctor first.
What program opens an ADOC file?
An ADOC file is plain text, so any text editor opens it, but seeing it rendered means running it through Asciidoctor or an editor with an AsciiDoc preview plugin, such as VS Code's AsciiDoc extension or IntelliJ IDEA's AsciiDoc plugin. GitHub also renders .adoc files directly in a repository.
Does AsciiDoc convert cleanly to Markdown?
Basic AsciiDoc, headings, paragraphs, lists, emphasis, converts to Markdown with little loss. Admonition blocks, include directives and cross-references have no Markdown equivalent, so a conversion either drops them or flattens them into plain text and a broken link.