Fact · Speech recognition
The react-speech-recognition README says that without a polyfill the Web Speech API is largely supported only by Google browsers, and gives a list of browsers dated May 2021.
Checked against its source on October 17, 2026
In the source's own words
“Without a polyfill, the Web Speech API is largely only supported by Google browsers. As of May 2021, the following browsers support the Web Speech API”
react-speech-recognition: README (GitHub, JamesBrill), James Brill, GitHub, open-source project README, 2026, Section: Supported browsers.
Open the original- What it measures
- The list names Chrome, Safari 14.1, Microsoft Edge, Android WebView and Samsung Internet. Firefox is not on it, which is consistent with the Firefox status we report elsewhere.
- What it does not show
- The list is nearly five years old. Browsers have changed since May 2021, so use it only as history and check current support in the MDN compatibility data.