editmd

editmd is a small, MIT-licensed native macOS editor that lets you edit the rendered markdown document in place and saves plain markdown back. It is built for working with coding agents on docs: when an agent edits the file while it is open, editmd diffs the new text, replays the change block by block and merges it with your unsaved edits through a Y.js CRDT, so the agent's changes simply appear, your edits stay put, and Cmd-Z only undoes your own changes. It is an AppKit document app with a bundled Milkdown (ProseMirror + remark) editor, so nothing loads from the network. Requires macOS 14+ on Apple silicon or Intel; install with brew install --cask kirahowe/tap/editmd. Version 0.1.0 was released on 22 October 2026.

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What is editmd?

editmd is a small, MIT-licensed native macOS editor that lets you edit the rendered markdown document in place and saves plain markdown back. It is built for working with coding agents on docs: when an agent edits the file while it is open, editmd diffs the new text, replays the change block by block and merges it with your unsaved edits through a Y.js CRDT, so the agent's changes simply appear, your edits stay put, and Cmd-Z only undoes your own changes. It is an AppKit document app with a bundled Milkdown (ProseMirror + remark) editor, so nothing loads from the network. Requires macOS 14+ on Apple silicon or Intel; install with brew install --cask kirahowe/tap/editmd. Version 0.1.0 was released on 22 October 2026.

How much does editmd cost?

editmd uses a Open source pricing model. Check the official website for current plans.

What is editmd used for?

editmd is listed on TolsAI under: AI Productivity Tools and AI Writing Assistants.

Where can I use editmd?

editmd is available on its official website, kirahowe.github.io.