Free and open first
Best AI Image Segmentation Software in 2026
AI image segmentation software labels regions or objects in images and video. This list is for people comparing tools by segmentation type, model training, deployment, and integration options.
- 33 apps
- Research read 9 Oct 2026
- How the order is worked out
- 1
CVAT
Free plan APISelf-hostedWebCVAT combines varied annotation tools with review workflows, storage connections, and broad export options.
- 2
LandingLens
Free plan APISelf-hostedWeb+1LandingLens brings image labeling, model training, and several deployment options into one computer vision workflow.
- 3
Roboflow
Free plan AndroidAPIiPhone+4Roboflow brings computer vision dataset work, inference, and deployment into one platform.
- 4
NVIDIA TAO Toolkit
Free plan LinuxSelf-hostedTAO combines model fine-tuning, data preparation, automated optimization, and deployment tooling in a free Linux package.
- 5
Supervisely
Free plan APISelf-hostedWebSupervisely combines annotation, dataset management and model workflows, with options ranging from a limited free Community plan to custom Enterprise deployment.
- 6
Ultralytics Platform
Free plan APISelf-hostedWebUltralytics Platform brings dataset annotation, analytics, and cloud model training into one workspace, with a Free plan and a defined Pro seat price.
- 7
3D Slicer
Free plan LinuxMacWindows - 8
Cellpose
Free plan LinuxMacWeb+1 - 9
ilastik
Free plan LinuxMacWindows - 10
Intel Geti
Free plan LinuxWindows - 11
MITK
Free plan LinuxMacWindows - 12
MMSegmentation
Free plan LinuxMacWindows - 13
Detectron2
Free plan Linux - 14
nnU-Net
Free plan LinuxMacWindows - 15
PaddleSeg
Free plan AndroidLinuxWindows - 16
TotalSegmentator
Free plan LinuxMacWeb+1 - 17
Clarifai Visual Search
Paid APISelf-hostedWebClarifai Visual Search combines photo-based discovery with API search and several deployment options.
5.9 Visit site - 18
MedSeg
Free plan Web - 19
Encord
Paid APISelf-hostedWebEncord combines multimodal annotation with dataset curation and model evaluation for AI development teams.
- 20
MHub
Free plan Linux - 21
Picsellia
Free plan Web - 22
StarDist
Free plan LinuxMacWindows - 23
Segment Anything Model 2 (SAM 2)
Free plan LinuxWindows - 24
Ximilar Image Segmentation
Free plan Web - 25
Clemex Studio
Paid LinuxMacWeb+1
#1Places #1, #2, #3, #4, #5 on this list can be bought by the makers of the software on it. See the price
Compare free plans, trials, paid pricing, and platform support before choosing. If reading or changing code matters, check the software licence and whether the plan permits your intended use.
Questions
What segmentation types should I compare?
Compare semantic, instance, and video segmentation support. The right choice depends on whether you need class regions, separate object instances, or frame-by-frame video results.
Which platforms do these tools support?
Listed platform options include Linux, Windows, macOS, web, self-hosted use, and API access. Check the platform field for the tool you are considering.
Are free AI image segmentation tools available?
Yes. 3D Slicer, Cellpose, Detectron2, ilastik, and Intel Geti list free plans. CVAT and LandingLens list freemium plans.
What does CVAT cost?
CVAT lists a free plan and paid plans from $23 per user per month when billed annually.
Do paid tools publish their prices?
Some paid products, including Aivia, Avizo Software, Clemex Studio, and Encord, list pricing on request rather than a public starting price.
Can I try a tool before paying?
A free trial is offered by tools in this category. Check the individual product terms to confirm trial access and limits.