Redline — UI Annotation Overlay

Extension Developer Tools1 user

Item media 1 (screenshot) for Redline — UI Annotation Overlay

Overview

Annotate UI elements in any web app with visual feedback. Includes a viewer for annotation files.

Annotate UI elements directly in any web app running in Chrome. Produces structured JSON annotation files designed for consumption by AI coding agents like Claude Code.

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Details

Version
0.2.0
Updated
March 16, 2026
Flag concern
Offered by
TwiceD Technology GmbH
Size
124KiB
Languages
English (United States)
Developer
Email
daniel.deusing@twiced.de
Non-trader
This developer has not identified itself as a trader. For consumers in the European Union, please note that consumer rights do not apply to contracts between you and this developer.

Privacy

Manage extensions and learn how they're being used in your organization

The developer has disclosed that it will not collect or use your data. To learn more, see the developer’s privacy policy.

This developer declares that your data is

Not being sold to third parties, outside of the approved use cases
Not being used or transferred for purposes that are unrelated to the item's core functionality
Not being used or transferred to determine creditworthiness or for lending purposes

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