Private document conversion for Mac

Turn documents into Markdown in seconds.

FileMark converts files locally on your Mac, then gives you a clean Markdown preview you can copy or save. No cloud service. No account. No extra setup.

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Local only Conversion happens on-device.

Fast workflow Drag, convert, review, export.

Cleanup options Trim and normalize Markdown output.

Copy or save Move output into your next step quickly.

Designed for real-world documents

FileMark is a native macOS SwiftUI app that uses an embedded conversion engine to turn user-selected documents into Markdown. It is ideal for notes, documentation, research, knowledge capture, and content workflows.

Drop in a file

Use drag and drop or the file picker to start converting right away.

Review the output

See Markdown in the preview pane before copying or saving anything.

Tidy formatting

Apply cleanup options for whitespace, blank lines, headings, lists, and HTML comments.

Keep it local

Conversion stays on-device, which makes the app a natural fit for private or sensitive files.

How it works

Choose a file or drag it into the app.
Convert it to Markdown using the bundled engine.
Review the preview and apply cleanup preferences.
Copy the Markdown or save it as an `.md` file.

Best for

Notes and personal knowledge bases.
Documentation drafts and technical writing.
Research highlights and article clipping.
Teams that need Markdown without a cloud upload step.

Simple, private, and focused

FileMark does one job well: turn documents into Markdown with a clean macOS interface and local processing. That keeps the experience fast, predictable, and easy to trust.