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CVAT overview and key facts (October 2026)
Open-source tool for annotating images, video, 3D point clouds and audio with automatic pre-annotation, also offered as a cloud service.
Free
from $23 per user/month
What is CVAT?
CVAT is an open-source annotation tool for computer vision teams that label images, video, 3D point clouds and audio. It can be self-hosted for free or used as the paid cloud service CVAT Online.
The project is maintained by the cvat-ai organization on GitHub under the MIT license and had about 16,800 stars with commits on September 28, 2026. CVAT supports bounding boxes, polygons, masks, tracks and 3D cuboids, task management, review and export to common training formats. CVAT Online adds hosted storage, API access, reports and quality features such as ground-truth jobs and honeypots, while the Enterprise edition is self-hosted with support.
CVAT AI features and use cases
- Pre-annotates with vision modelsAutomatic annotation runs models such as SAM or YOLO on images and video frames and creates draft labels. Annotators check and correct instead of drawing every shape.
- Uses your own models for labelingTeams connect their own or Hugging Face models to label new data. As the model improves, less manual work remains for each new batch.
- Measures annotation qualityGround-truth jobs and honeypots compare annotator output with known answers. Project leads spot weak labels before they reach the training set.
What sets CVAT apart
- MIT-licensed open source that can run entirely on your own servers.
- Supports 3D point clouds and audio besides images and video.
Where CVAT is strongest
Available internationally
CVAT is an open-source project used worldwide that can be self-hosted or used as a cloud service.
Questions to ask before you buy CVAT
Self-hosting keeps data in your own infrastructure but requires your team to run updates, backups and GPU servers for automatic annotation. With CVAT Online, clarify the hosting region and data processing terms. SSO is only available on yearly Team plans and Enterprise.
CVAT reviews
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Questions about CVAT
Is CVAT free?
The open-source version under the MIT license is free to self-host. CVAT Online has a Free plan for one to two members and paid Solo and Team plans.
What does CVAT Online cost?
Solo and Team plans cost $23 per user per month billed yearly or $33 monthly. Enterprise starts at $12,000 per year.
Which data types can I annotate?
Images, video, 3D point clouds and audio, according to the pricing page.
CVAT update historyno updates yet
No changes recorded for CVAT yet.
Changes the vendor made and confirmed user reports, each checked against the vendor's own pages. We review every tool monthly.
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