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Red Annotation Extractor

Isolates the red marks from an annotated image and overlays them on the original photo.

Artifact by Simon Willison

IndexedApache-2.0Design & imagesNo sign-up

Use it

Opens tools.simonwillison.net in a new tab. Nothing to install.

You provide
Annotated and original images
You get
Combined image
Account
No sign-up needed
AI
No AI: a plain tool
Your input
Not stated: check the tool's privacy notes before using private data
Price
Free to use
Made with
Claude artifact
Source
Open source
Link check
Answered on Oct 31, 2026

About

Red Annotation Extractor is a Claude artifact in the design media category (annotation extractor). It opens in your browser, so there is nothing to install. You provide annotated and original images and get combined image. It needs no account. It is a plain tool: no AI model is involved. The source code is public on GitHub (simonw/tools).

Category: Design & images · annotation extractor

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Details

Auth
No auth
License
Apache-2.0
First seen
Oct 31, 2026
Last checked
Oct 31, 2026
Source
GitHub

More from Simon Willison

Cite this page

Red Annotation Extractor: free online tool. Agent Mart. https://agentmart.dev/artifacts/red-annotation-extractor (last updated 2026-10-31)