Open Markdown files made in other apps

Yes. Unmarked opens any standard Markdown file written in another editor, as long as it's a regular file on your Mac. No import, no conversion. It opens the file in place, so you can keep using your other tools on the same file.

Markdown is plain text. A .md file written in one app is the same file in every other app. Unmarked treats it that way: it reads the file where it sits and writes back to that same file. Nothing copied, nothing locked.

Open a file from another editor

1. In Unmarked, choose File ▸ Open (⌘O).
2. Pick the .md, .markdown, or .txt file you made elsewhere.
3. Press ⌘E for Read mode, the rendered document, and again for Write mode.

Or open it from the Finder: right-click the file, choose Open With ▸ Unmarked. To make Unmarked the default for a file, select it in the Finder, press ⌘I, set Open with to Unmarked, and click Change All.

Unmarked opens the usual Markdown extensions and plain .txt (the full list).

You can keep using your other tools

Opening a file in Unmarked doesn't claim it. The file stays a normal file in its normal place. Edit it in Unmarked, then open the same file in your other editor later, or the other way around. Leave the file in its iCloud Drive or Dropbox folder and it keeps syncing while Unmarked edits it in place.

When your other editor saves a change to a file that's open in Unmarked, the window shows the new version a moment later (what happens when another app changes your file).

Files written on Windows open fine too. Unmarked detects and preserves the text encoding and line endings, so a Notepad file round-trips unchanged rather than getting rewritten.

If part of a file looks off

A few things in files from other apps display differently.

Remote images, the kind linked from a https:// web address, show as their alt text. Unmarked doesn't fetch anything from the web, so they can't load. Local images stored next to the file render normally.

Footnotes ([^1]) appear as plain text. See what's not rendered yet for the full list.

LaTeX written between \( and \) or \[ and \] isn't read as math, so use dollar signs (how to write math).

None of this changes the file. It only changes how those parts display.