Sync your Audio
on Netflix
Bluetooth latency makes Netflix impossible to watch. LagSync fixes the delay at the engine level for perfect lip-sync.
Netflix uses DRM-backed adaptive streaming that can switch audio tracks or bitrates during playback.
Last updated: 4/7/2026
Quick Setup Guide
Install & Pin
Add LagSync to your browser and pin it to your toolbar for quick access while watching.
Play Netflix
Open any video on Netflix. LagSync will automatically detect the video engine and prepare the hook.
Slide to Sync
Open the popup and move the slider. Your audio will shift in real-time until it fits the video perfectly. You could also use our built in latency tester.
Pro Tip for Netflix Users
"Netflix uses heavy buffering. If you change the delay, give it ~30 seconds to "catch up" to the new offset or reload for instant effect."
Practical Tips
Netflix uses DRM-backed adaptive streaming that can switch audio tracks or bitrates during playback.
- Pick a consistent streaming quality in your Netflix account Playback Settings (use 'High' or a fixed setting for testing).
- Start with a fixed preset of 180–220 ms and adjust in small steps until lip-sync is correct.
- If you notice gradual drift over long sessions, try seeking a few seconds or reloading the tab to reinitialize playback.
- Toggle browser hardware acceleration as a troubleshooting step — it can sometimes affect timing on certain GPUs.
LagSync v1.2.1 — Available Now
LagSync v1.2.1 is available now on Chrome, Firefox, Brave, and Edge. Safari support is coming soon.