Quick summary
The Fix Geometries tool in QGIS lets you automatically detect and repair invalid vector geometries, such as self-intersecting polygons, by running a simple workflow through the Processing Toolbox. This built-in tool saves time by correcting spatial errors without manual editing, ensuring your layers are analysis-ready.
Steps
- Open the Processing Toolbox from the right-side menu in QGIS.
- In the search bar, type and select Fix Geometries from the results.
- Under Input Layers, select the layer that contains geometry errors (typically a polygon layer).
- Choose your preferred repair method from the available options.
- Click Run to execute the fix and generate a corrected output layer.