Convert Raster to Vector in QGIS

How to Convert Raster to Vector in QGIS

Updated on:

June 8, 2026

By:

Use this interactive demo to learn how to turn raster data into editable vector layers in QGIS.

Quick summary

The Polygonize tool in QGIS lets you convert any raster layer into an editable vector format (GeoPackage or Shapefile) in just a few clicks. Using the Processing Toolbox, you can configure input bands, field names, and output settings before running the conversion.

Steps

Open the Processing Toolbox from the right-side menu in QGIS.
In the search bar, search for and select Polygonize (Raster to Vector).
Set the parameters by choosing the input layer (raster), band, field name, and output format (GeoPackage or Shapefile).
Click Run to execute the raster-to-vector conversion.

📌 Why this matters

Converting raster to vector in QGIS unlocks the ability to edit, style, and analyze geographic data at the feature level, which is not possible with pixel-based raster files. The built-in Polygonize tool makes this conversion accessible without requiring external software or coding. GIS analysts, cartographers, and spatial data professionals rely on this workflow to prepare raster-derived data for further geospatial analysis or publication. Mastering this feature in QGIS reduces manual data processing time and ensures compatibility with standard vector formats like GeoPackage and Shapefile.

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