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On-device Web Speech API: W3C TAG review request (design-reviews #1038)
W3C Technical Architecture Group (review request), 2025
Read the originalRead on October 17, 2026
- What it is
- The W3C TAG review request for on-device support in the Web Speech API, opened on 9 January 2025 and tracked as design-reviews issue 1038. It describes the goal (no audio or transcript sent to a third party) and names fingerprinting as the main risk.
- How much weight it carries
- A proposal from the feature's authors, not a finished standard. It shows what the design intends and what reviewers were asked to check, and the shipped behavior is in the browser release notes.
Facts taken from this source
- The W3C TAG review of the on-device Web Speech feature names the potential for fingerprinting as its primary risk.
“The primary risk of this new functionality is the potential for fingerprinting.” (Security and privacy section)
- A W3C TAG review request for on-device support in the Web Speech API was opened on 9 January 2025.
“opened on Jan 9, 2025 Issue body actions こんにちは TAG-さん! I'm requesting a TAG review of on-device support for the Web Speech API.” (Review header)