What Does "Browser" Mean in GA4 Reports?

The web browser used in a session, e.g. Chrome, Safari, or Edge.

Ask it in plain English

"Which browsers are my visitors using?"

Field details

Type	Dimension
GA4 API name	`browser`

Good to know

Grouped coarsely by user-agent string, so most Chromium-based browsers that don't rebrand their UA (many privacy-focused or niche browsers included) report as "Chrome" - this dimension isn't reliable for isolating those browsers specifically from mainstream Chrome traffic.

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Used in these recipes

How do I see sessions by browser in GA4?

Related fields

Operating system
Device category

Sources

Google Analytics Data API - dimensions & metrics reference (official Google documentation)