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Extend the web

Learn why Extensions are so powerful and how you can customize Chrome's browsing to your needs.
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Explore a variety of ways to add interactions to your extension.
Explore ways to customize and react to the browser.
Explore ways to change and modify web pages.

Extensions on YouTube

Insights and news from the Extensions ecosystem.
Hear from David Li, Product Manager on the Chrome Extensions team, answers your top questions about the Chrome Web Store.
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What are content scripts?

Learn about content scripts in Chrome Extensions, including how to register CSS and JavaScript to run on a particular page.
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Patrick from the Chrome Extensions team explains the concept of Remotely Hosted Code (RHC) in Chrome Extensions. Learn why RHC is no longer allowed, how to detect it, and what to do if your extension needs to be updated.
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Extensions in action

Load these sample extensions on your local computer.
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This sample demonstrates the use of the Action API which changes the icon, icon badge, hover text or popup page depending on the user's choice or action.
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A user script can be created by users or downloaded from a script repository. This sample allows you to inject files and arbitrary code added in an options page.
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This sample demonstrates how you can inject JavaScript into web pages using the Scripting API.
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This sample demonstrates how to create a side panel that opens when the user clicks a button on a page or opens a context menu.
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Documentation

Everything you need to know about Chrome Extensions.
Build your first extension.
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Learn how Chrome Extensions work and what they can do.
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Learn to solve specific use cases in Chrome Extensions.
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Reference documentation for Extensions APIs, manifest keys, and permissions.
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Extensions posts

Read the most recent Chrome Extensions blog posts

Chrome 웹 스토어 개발자 대시보드에서 검토 취소하기

이제 검토 대기 중인 항목의 검토 절차를 중지할 수 있습니다.

2025년 1월 Chrome 확장 프로그램 변경사항

Chrome 확장 프로그램의 최근 변경사항에 대한 개요와 개발자가 기대할 수 있는 곧 출시될 흥미로운 확장 프로그램 기능을 확인해 보세요.

Chrome 웹 스토어 정책 업데이트: 개발자를 위한 명확성과 일관성 보장

YouTube는 플랫폼 전반에서 명확성과 일관성을 제공하기 위해 마련된 일련의 정책 업데이트를 발표합니다.

Support and feedback

Get help developing your extension, and help us make Chrome Extensions better.
Get answers to questions not covered by the documentation.
Report extension bugs or problems with documentation.
Submit a request for a feature that you believe could improve the extension platform.
Check whether a bug or feature request has already been reported.
Find resources on how to upgrade an extension from Manifest V2 to Manifest V3, the newest version of the Chrome Extensions platform.