Gemini Image Mask Viewer
Requests segmentation masks from Gemini for objects in an image and overlays them for inspection.
Artifact by Simon Willison
Use it
Opens tools.simonwillison.net in a new tab. Nothing to install.
- You provide
- Image, prompt, Gemini API key
- You get
- Image with mask overlays
- Account
- No sign-up needed
- AI
- AI-powered; you bring your own API key
- Your input
- Not stated: check the tool's privacy notes before using private data
- Price
- Free to use
- Made with
- AI-built app
- Source
- Open source
- Link check
- Answered on Oct 31, 2026
About
Category: Charts & diagrams · segmentation
Reviews
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Details
- Auth
- API key
- License
- Apache-2.0
- Repository
- github.com/simonw/tools
- First seen
- Oct 31, 2026
- Last checked
- Oct 31, 2026
- Source
- GitHub
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Cite this page
Gemini Image Mask Viewer: free online. Agent Mart. https://agentmart.dev/artifacts/gemini-image-mask-viewer (last updated 2026-10-31)