Every object in your imagery becomes a polygon

AI segmentation is computer vision that splits an image into regions and outlines each object with a pixel mask. AI Segmentation is a QGIS plugin that does this on satellite, aerial and drone imagery and turns every mask into a vector polygon. Point at one object and get its outline, or draw an area and let the AI find every instance inside it.

Semantic segmentation puts every pixel in a class, such as building or road, without telling one building from the next. Instance segmentation outlines each object on its own, so two touching houses come out as two polygons. Panoptic segmentation does both at once. Automatic and Semi-Auto are instance segmentation: one polygon per building, tree or pool, which is what you need to count objects or measure each one.

Yes. Semi-Auto on your own machine is free forever and open source, with no counter. The cloud comes with two monthly allowances, no card asked: Automatic covers 1.5 km² of ground, and Semi-Auto covers 20 object detections, one per object you keep. Pro raises them to 50 km² in Automatic and 500 objects in Semi-Auto, and keeps the fine grid on wide areas.

Pro lifts what stops a free account on real work. The free plan is for personal, non-commercial use; Pro adds commercial use. Free Automatic covers 1.5 km² of ground a month; Pro covers 50 km². A km² is a km² on the map, whatever the imagery and whatever Precision you pick. A wide area on Free is spread over a coarser grid, so width costs detail; Pro keeps the fine grid at any width. Pro also raises Semi-Auto to 500 object detections a month, and keeps your runs with their imagery, 30 days by default or longer if you choose, so you can reopen and re-export them. €39 a month, cancel anytime.

Anything visible in your images: buildings, roads, vegetation, vehicles, water bodies, agricultural parcels, and more. It works on satellite imagery, aerial photos, drone images, and any other image layer in QGIS.

We publish no accuracy figure, because one number would be false: it moves with your imagery, your resolution and what you are extracting. We show you the errors instead. Every automatic run opens in a review step where you filter by confidence and size, add what was missed, delete what is wrong, and square off building corners. On a dense Paris block, 635 raw polygons came down to 82 real buildings. Corrections never cost anything. Test it on your own imagery for free, that is the only honest measure.

Yes. Pro puts no limit on the area you draw. Automatic splits a large area into tiles, detects each one, and stitches everything back into a single polygon layer, merging objects that cross tile edges. Pro covers 50 km² of ground a month, counted on the map: the Precision you pick changes what the AI finds, never what the run costs. On the free plan Automatic covers 1.5 km² a month, and a wider area is spread over a coarser grid unless you raise the Precision, so width costs detail.

Your imagery is processed and stored on our servers in Europe, and nowhere else. We do not train any model on it and we do not share it. If you prefer, Semi-Auto runs on your own machine, and then nothing leaves your computer. On Free we keep a technical copy of each click square for 12 months to measure detection quality, and you can opt out in Settings. On Pro no click square is kept beyond a technical cache deleted within one day, and your tiles and outlines are your history alone, never measured. Your history stays until you delete it, or on Pro for the time you choose, from 30 days to 1 year, and you can export or delete everything from your dashboard.

Ask us and we send the one-pager they need: what leaves QGIS, where it is processed, how long we keep it and how to have it deleted. In short, Semi-Auto on My computer uploads nothing. Cloud AI, the default, sends a small square of imagery around each click, and Automatic sends the tiles of the area you draw, both to our servers in the European Union. The plugin shows where each engine runs before your first click.

Open QGIS, go to Plugins → Manage and Install Plugins, search for "AI Segmentation" and click Install. Or download directly from the QGIS Plugin Repository.

Yes. You can cancel anytime from your dashboard and keep Pro until the end of the period you already paid, with no lock-in. As an individual, you can withdraw within 14 days of subscribing for a full refund (not for business subscriptions or renewals). Otherwise fees are non-refundable, but if something went wrong, email us and we'll make it right.

You do. Every polygon you extract is yours to keep and redistribute. Your imagery stays yours, and we never resell or reuse your imagery or your results. Using them in paid work needs a paid plan: the free plan does not carry commercial use.