# Make Heedit the default for Markdown

Canonical: https://heedit.ai/docs/start/default-markdown/
Language: en

One setup choice makes every Markdown file open in Heedit when you double-click it. PDF, HTML and image defaults stay untouched.

## Turn it on

Open Setup Guide from the Help menu, then set Heedit as the default Markdown app. The change applies only to Markdown document types registered by macOS; it does not move or rewrite any file.

## Change it later

You can return to Setup at any time. macOS remains the authority for default applications, so the current state is read from Launch Services instead of a private Heedit preference.