Buffer Active Layer

Expands every feature in the active layer outward by a configurable radius in metres. Works on both point and polygon geometry — output saved as GeoJSON alongside the source file and loaded into the QGIS project immediately.

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What you get

buffer_active_layer.py

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What it does

Any point or polygon input

Works on both point geometry (produces circles) and polygon geometry (produces rounded outward expansion).

Configurable radius

Set buffer_radius in metres at the bottom of the script — no hardcoded values.

GeoJSON output

The buffered layer is saved as {input_name}_buffered.geojson in the same directory as the source file.

Auto-loads in QGIS

The output is added to your QGIS project immediately with original attributes preserved.

How to use it

1
Load your vector layer and click it to make it the active layer in the Layers panel.
2
Open Plugins → Python Console → Show Editor.
3
Paste the script. At the bottom, set buffer_radius in metres.
4
Click Run.

Requirements

QGIS 3.28 or newer
QGIS processing framework — bundled
Active point or polygon layer

Also in the GIS Utilities Pack

Get all 4 GIS utility scripts for $25 — save $5 vs buying individually.

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