Qursor Chrome extension sends exact UI element context to AI agents
Qursor is a Chrome extension that lets developers point to specific UI elements and export their exact classes, selectors, styles, and annotations as structured context for AI coding agents — replacing vague screenshots.
Score breakdown
Qursor replaces screenshot-based AI UI workflows with structured, element-level context, removing the token cost and ambiguity of image interpretation when making targeted UI changes.
- 01Qursor is a Chrome extension that captures exact CSS classes, selectors, and style details from any UI element.
- 02Developers can annotate elements and edit styles directly before copying structured context to an AI agent.
- 03The tool exports components as HTML, CSS, or JSX for use in React and other workflows.
Qursor is a Chrome extension built to give AI coding agents exact UI context rather than relying on screenshots. The core workflow lets a developer click any element on a live page to instantly surface its font family, size, weight, line height, colors, padding, margins, and CSS selectors. They can annotate what should change, edit styles directly in the browser, and then copy everything as structured, code-aware context — including any edits or annotations made — so the agent receives both the precise target and the intended changes without having to search the codebase.
The extension is described as working on production sites, staging environments, and localhost within the same workflow.
Beyond element inspection, Qursor includes a component extraction feature that exports selected UI sections as clean HTML, CSS, or JSX, a color eyedropper that captures values in multiple formats and shows a full page palette, a font inspector for detailed typography details, and an asset downloader for SVGs, PNGs, and JPGs. The extension is described as working on production sites, staging environments, and localhost within the same workflow. The post was shared on Hacker News by the author under the handle TheOmkarBirje.
Key facts
- 01Qursor is a Chrome extension that captures exact CSS classes, selectors, and style details from any UI element.
- 02Developers can annotate elements and edit styles directly before copying structured context to an AI agent.
- 03The tool exports components as HTML, CSS, or JSX for use in React and other workflows.
- 04A color eyedropper captures values in multiple formats and surfaces a full page color palette.
- 05A font inspector surfaces family, size, weight, line height, letter spacing, and other typography details.
- 06An asset downloader extracts SVGs, PNGs, and JPGs directly from any page.
- 07The extension works on production sites, staging environments, and localhost.
Topics
Summary and scoring are generated automatically from the original article. We always link back to the publisher and never republish images or paywalled content. Last processed Jun 11, 2026 · 08:34 UTC. How this works →