Annotate Faster with the
Power of SAM 2

The open-source, private, and professional tool for creating computer vision datasets. Built with Electron, Python, and state-of-the-art AI.

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NotumAi Interface - Segment Anything Model 2 in Action

Why Choose NotumAi?

Built for professional workflows without the cloud subscription fees.

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AI-Powered Speed

Leverage Meta's Segment Anything Model 2 (SAM 2) to generate precise polygon masks with a single click. No more manual vertex plotting.

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100% Private & Local

Your data never leaves your machine. All AI inference happens locally on your GPU/CPU, ensuring maximum security for proprietary datasets.

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Universal Export

Export your annotations seamlessly to standard formats like COCO, YOLO, and Pascal VOC, ready for instant model training.

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Modern Architecture

Built on a robust Electron + FastAPI stack. Enjoy the responsiveness of a native app with the power of Python's scientific ecosystem.

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Premium UX

A dark-themed, glassmorphic interface designed for long annotation sessions. Intuitive controls and clear visual feedback.

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Open Source

Fully MIT licensed. Modify the code, extend the functionality, or contribute back to the community.

Effortless Workflow

01

Import Data

Load your image directory directly. NotumAi scans and prepares your workspace instantly.

02

Click to Segment

Simply click on an object. The AI instantly predicts the mask. Refine with positive/negative points.

03

Export

Save your project or export annotations in your preferred deep learning format.

Community Driven

We Welcome Contributors!

NotumAi is an open-source project. Whether you're fixing a bug, designing a new feature, or improving documentation, we'd love your help.