Install

QuadGuide needs Blender 4.2 or later on Windows, macOS (Apple silicon) or Linux. The remeshing engine is a separate program inside the download; the add-on runs it in the background, so Blender stays responsive while it works.

From the download

1. Download quadguide-<version>.zip. Do not unzip it.
2. In Blender: Edit > Preferences > Add-ons, the drop-down at the top right, Install from Disk..., and pick the zip.
3. Tick QuadGuide in the list if it is not ticked already.

Nothing else to install: the add-on finds the engine for your system inside the zip.

macOS

The first time, macOS may say the engine "cannot be opened". Open System Settings > Privacy & Security and press Open Anyway next to the message, then Remesh again.

Find the panel

In the 3D viewport press N to open the sidebar and pick the QuadGuide tab.

Preferences

Expand QuadGuide's entry in Edit > Preferences > Add-ons:

Setting	What it does
Expert Settings	Shows the Expert section in the panel: the sliders behind the styles.
Developer Tools	Shows the Developer section: tools still in testing and debugging views.
Engine	The path to the engine program. Leave it empty to use the one in the download.

Updating

Install the new zip the same way; Blender replaces the old version. Your scenes keep their settings and guides.