How can I check if a browser is Chromium-based?

Question

I have a Chrome extension, and I am currently writing a website to advertise it. I know that a Chrome extension can be installed in all Chromium-based browsers (Chrome, Opera, etc.).

Is it possible to check if a browser can download the extension from the web store or is chromium-based?

I found code to detect if it was Google Chrome here. Correct me if I'm wrong, but I think window.chrome doesn't return in all Chromium-based browsers.

Answer 1

window.chrome

As of now, window.chrome works in all chromium based browsers

var isChromium = !!window.chrome;

console.log(isChromium)

Resources

• https://browserstrangeness.github.io/css_hacks.html
• http://browserhacks.com/

navigator.userAgentData

User-Agent Client Hints API returns information about the browser and operating system of a user. (Introduced in chrome 90)

var isChromium = !!navigator.userAgentData && navigator.userAgentData.brands.some(data => data.brand == 'Chromium');

console.log(isChromium)

Resources

• https://developer.mozilla.org/en-US/docs/Web/API/Navigator/userAgentData
• https://developer.mozilla.org/en-US/docs/Web/API/NavigatorUAData
• https://web.dev/migrate-to-ua-ch/