LagSync
LagSync is a browser extension that reduces Bluetooth audio latency and restores lip-sync during video playback. It uses media-source interception, Web Audio delay controls, and presets for common Bluetooth codecs across major browsers and streaming sites.
Overview
8 featuresLagSync sits in PulseGate's Audio editors & converters category. Bluetooth audio delay causing out-of-sync dialogue and video playback. LagSync is a consumer product aimed at people watching streaming video with Bluetooth headphones. It ships for the web, embeddable surfaces, and iOS.
Simon Kodu builds and maintains LagSync, and it first shipped in 2026. Among its 8 catalogued features are audio delay correction, MSE hooking, and Web Audio fallback.
- Audio delay correction
- MSE hooking
- Web Audio fallback
- Codec presets
- Editable delay profiles
- Streaming site support
- Local processing
- Privacy controls
Built with & integrations
- Astro
- /_astro/ in the HTML
Trust & compliance
Indexing history
1What PulseGate has recorded for this listing
- Indexed10 Sept · 23:32 UTCLagSync - Bluetooth Audio Fix verified via Firefox Add-onsSource: Firefox Add-ons · Open
Frequently asked questions about LagSync
- What does LagSync do?
- Bluetooth audio delay causing out-of-sync dialogue and video playback. It is catalogued under Audio editors & converters on PulseGate.
- Who should use LagSync?
- LagSync is a consumer product built for people watching streaming video with Bluetooth headphones.
- What platforms does LagSync run on?
- LagSync runs on the web, embeddable surfaces, and iOS.
- Is LagSync still active?
- Unverified. LagSync has not been re-checked since it entered the index, so there is no finding either way — and only a positive finding would say otherwise.
- Who makes LagSync?
- LagSync is developed by Simon Kodu, based in the United States.
- When did LagSync launch?
- LagSync first shipped in 2026.
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