YouTube No Sound
If YouTube plays but stays silent, check each mute layer from the video player down to your speakers.
Check the player volume
The speaker icon in the player may be muted or set to zero; press M to toggle.
Unmute the browser tab
Right-click the tab → Unmute site. Firefox shows a crossed speaker on the tab.
Test system sound
Play the sound test. If it is silent too, the problem is system-wide.
Pick the correct output device
Windows: speaker icon → choose output. Mac: Control Centre → Sound. Bluetooth may have grabbed audio.
Clear cache and disable extensions
Ad blockers and audio extensions can break playback; try a private window.
Update or switch browser
Update the browser and audio drivers, or try another browser.
Mobile fixes
Check the ring/silent switch on iPhone, Do Not Disturb, and media volume on Android. Restart the app.
Related tools
Older and security causes
Outdated plugins
Old guides mention Flash; modern YouTube uses HTML5, so update the browser instead.
Security software
Some antivirus web filters block media; temporarily disable to test.
More solutions
Solve any YouTube audio problem step by step
Work from the video’s own mute button outwards to the speakers.
Check the YouTube mute button
Unmute in the player and drag the volume up.
Open YouTube in a private tab or another browser
This rules out extensions and cached settings.
Frequently Asked Questions
Q.Only YouTube has no sound
Tab mute or extension problem.