OpenAI Brings Codex to Google Chrome

One year after it launched the Codex in preview, OpenAI’s coding agent is available pretty much everywhere. And that now includes the browser, thanks to the release of a Codex extension for Google Chrome.

“Codex can now take on more of your browser dev work,” OpenAI announced on Twitter/X. “With the new Chrome plugin in the Codex app, it can test web apps, gather context across tabs, use web DevTools efficiently in parallel, and keep results organized without taking over your browser.”

Though it works directly in the browser, Codex for Chrome doesn’t take over your active browsing session like Computer Use. Instead, it’s designed to help with the browser-based work that people already do all the time, especially work that depends on live page state, a logged-in account context, internal tools, or company-specific web apps.

The release of Codex for Chrome comes a few months after OpenAI released Codex apps for the Mac and Windows, and it was informed by those releases: OpenAI found that the most common workflows customers were engaging in happened in a web browser. With this release, those users now have a faster, more direct way to do that work.

“For developers, this makes Codex more useful across browser-based workflows like inspecting logs, testing web apps, reviewing dashboards, and moving through internal tools,” OpenAI told me. “For individuals and teams, it opens up more practical work in tools like CRMs, dashboards, docs, and other apps.”

Codex now has over 4 million weekly active users, an 8x increase since the beginning of 2026. You can learn more about Codex on the OpenAI website, and you can find the Codex extension for Chrome in the Chrome Web Store.