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MarkHippo

The discoverable, extensible markdown editor

CommonMark and GitHub's extensions, with math and diagrams, rendered by MarkHippo's own parser. Nothing you write leaves this machine.

Designed by Jason, Coded by Claude
Copyright © 2026 Jason Figge · GPL-3.0

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Plugins

Everything MarkHippo understands comes from a plugin, CommonMark included. The web app runs the plugins bundled with it; the desktop app, and ViewHippo, also load your own.

Themes

Mode

Palettes

    Type / at the start of a line for block types, or Control+Space or Alt+Slash anywhere, for suggestions: arrow keys choose, Enter or Tab inserts. Tab indents. Press Escape, then Tab, to move focus out of the editor.