Official documentation
Chrome 139 release notes
Google Chrome for Developers, 2025
Read the originalRead on October 17, 2026
- What it is
- Google's release notes for Chrome 139, which list the on-device Web Speech API among the features in that version.
- How much weight it carries
- Official Google release notes. They describe what the feature does, not the full list of browsers or languages it covers, so check the MDN compatibility table for current support.
Facts taken from this source
- Chrome's 139 release notes say the Web Speech API gained on-device speech recognition, so a website can make sure neither audio nor transcribed speech is sent to a third-party service.
“This feature adds on-device speech recognition support to the Web Speech API, allowing websites to ensure that neither audio nor transcribed speech are sent to a third-party service for processing.” (On-device AI section)
Pages that rest on this source
- Is Voice to Text Safe? How to Dictate PrivatelyGuide
- Speech to Text in Chrome: Built-in Options and ExtensionsGuide
- Chromebook Dictation: How to Turn It On and Use ItGuide
- Web Speech API: Speech Recognition in the BrowserGuide
- Can Chrome do speech to text offline?Question
- Does the Web Speech API send audio to Google?Question
- Is Google voice typing HIPAA compliant?Question
- Is there a dictation extension for Gmail?Question
- Why is dictation not working in Gmail?Question
- Web Speech APIGlossary