One supported file at a time

Open one .md, .markdown, .mdx, .rmd, .qmd file from Files, the iOS Share Sheet, or Open In.

Extract ZIP archives first

The app does not open ZIP archives. Extract the archive in Files, then choose one supported Markdown file.

Linked local files are not guaranteed

For reliable preview, use self-contained Markdown. Relative local images, linked documents, anchors, or neighboring project files may not resolve.

Viewer, not a project editor

The app previews a file; it does not edit Markdown or manage a multi-file project.