Markdown to AsciiDoc Converter

Real-world use cases

• Move a GitHub README into an Antora docs site

  Your project README lives in Markdown but the docs portal is built with Antora, which reads AsciiDoc. Paste the README on the left, copy the AsciiDoc, and the headings become equals-sign sections, the fenced install snippet becomes a [source,bash] block and the links flip to url[text]. The page renders natively in the portal instead of showing raw hashes, so non-engineers reading the docs see formatted content.

• Convert an LLM answer for an Asciidoctor book chapter

  Claude or ChatGPT hands you a clean Markdown explanation with headings, steps and code samples for a chapter you are writing in AsciiDoc. Run it through once and the source blocks, numbered steps and emphasis all land in the markup Asciidoctor expects, so you paste straight into the .adoc file instead of hand-retyping every heading and fence.

• Migrate notes off a Markdown editor into a .adoc file

  You drafted a runbook in a Markdown editor, then realised the team keeps its operations docs in AsciiDoc under version control. Rather than rewrite each heading, link and code block by hand, paste the draft through the converter, copy the AsciiDoc, and the whole runbook is ready to commit as a valid .adoc on the first save.

• Standardise mixed Markdown and AsciiDoc in one repo

  A repository has accumulated both .md and .adoc files and the build only renders AsciiDoc. Feed each Markdown file through the tool, drop the output into a matching .adoc, and the docs build picks up the converted pages with their source blocks and image:: macros intact, no more half-rendered Markdown slipping past the toolchain.

Common pitfalls

• Expecting AsciiDoc headings to keep hash signs. AsciiDoc uses leading equals signs by count, and a Markdown

• Leaving links in [text](url) order. AsciiDoc reverses Markdown and writes url[text], with the URL first and the label in trailing brackets. A raw Markdown link inside AsciiDoc shows as plain text with visible brackets and parentheses. Convert first so links render as real anchors.

• Forgetting that fenced code needs a listing block, not just a fence. A bare set of backticks does not delimit code in AsciiDoc; you need a [source,lang] attribute over a ---- listing block. Pasting the Markdown fence as-is leaves the backticks visible and the code unstyled. The tool emits the [source,lang] plus ---- form automatically.

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