Sound Booster
600%
Boost volume up to 6×
Quiet videos, soft podcasts, weak laptop speakers. Go past the browser's 100% limit and catch every word.
Free Chrome extension
Take control of your audio
Boost any tab up to 600%, make voices clearer and add deeper bass. One slider, three presets, every website.
- Free forever
- No sign-up
- Works on all websites
Boost audio on
YouTube
Spotify
Netflix
Twitch
SoundCloud
Vimeo
Any site with audio
Features
Everything you need to hear it right
No settings maze. Open the popup, move the slider, listen.
Voice boost
Lifts dialogue so speech stays clear over music and effects.
Bass boost
Adds low-end weight to music, games and films.
Per-tab memory
Your level and preset are saved for each tab.
Mouse wheel control
Scroll over the slider to fine-tune. Invert the direction in settings.
Playing audio list
See every tab making sound and jump to it in one click.
Light and dark theme
Pick the look that suits your browser. Your choice is remembered.
Preset Demo
Pick a preset, see what changes
Each preset reshapes the frequency balance. Try them here.
Default
Frequency response
Works on any website
Better sound, everywhere
If it plays audio or video in a Chrome tab, you can boost it. Switch tabs and try the real popup below.
youtube.com/watch
1:24
How it works
Get started in seconds
1
Add to Chrome
Install from the Chrome Web Store, then pin Sound Booster from Chrome’s Extensions menu.
2
Open a website
Play any audio or video, then click the extension icon.
3
Adjust and enjoy
Drag the slider or choose a preset. The sound changes instantly.
Built for everyone
Perfect for any listening situation
Music
Fuller, louder playback from any streaming site.
Videos
Rescue quiet clips, lectures and screen recordings.
Movies
Clear dialogue and stronger scenes on your laptop.
Gaming
Louder browser games, streams and voice chats in the browser.
Compare
Why not just use the browser?
| Feature | Chrome alone | Sound Booster |
|---|---|---|
| Maximum volume | 100% | 600% |
| Voice boost preset | Included | |
| Bass boost preset | Included | |
| See all tabs playing audio | Included | |
| Account required | – | Never |
| Price | – | Free |
Transparency
Permissions, explained
We ask for only what the extension needs to work.
tabCapture
Process tab audio
Lets the extension boost and shape the sound of the tab you choose.
activeTab
Act on your tab only
Works on the tab you open it on, when you open it.
offscreen
Run the audio engine
Keeps the sound processing running while the popup is closed.
storage
Remember your settings
Saves your theme, wheel direction, level and preset locally.
tabs
List playing tabs
Shows which tabs are playing audio so you can switch to them.
No data collection
The extension makes no network requests. Settings never leave your browser.
FAQ
Frequently asked questions
Quick answers for setup, sound, fullscreen and troubleshooting.
Is Sound Booster free?
Yes. Sound Booster is free to use. There is no subscription, account or sign-up.
How loud can it go?
The slider goes from 0% to 600%. 100% is the tab’s original level; 0% mutes it. Increase volume gradually to avoid distortion.
Which websites does it work on?
It works with audio and video played in supported Chrome tabs, including YouTube, Spotify, Netflix and Twitch. Some protected or browser-internal pages may not allow capture.
How do I use F11 fullscreen with the volume booster?
On Windows and Linux, press F11 to enter or leave Chrome’s browser fullscreen mode (some laptops require Fn + F11). On macOS, use Control + Command + F. Set your boost in the extension before going fullscreen. If a video’s own fullscreen button stops working while tab audio is being captured, try F11 for browser fullscreen instead.
Why does the video fullscreen button sometimes stop working?
Chrome’s tab-capture behavior can interfere with a player’s own fullscreen control on some sites. F11 switches the whole browser into fullscreen and is a useful workaround. Press F11 again to exit.
What is the difference between Voice boost and Bass boost?
Voice boost emphasizes speech frequencies to help dialogue stand out. Bass boost adds weight to lower frequencies for music, films and games. Choose a preset in the popup.
Can I control different tabs separately?
Yes. Open the extension on the tab you want to adjust. The playing-audio list can help you find and switch between tabs.
Does it remember my volume settings?
The extension saves supported per-tab volume and preset settings while those tabs remain available. Closing or reloading a tab can sometimes require you to restart the boost.
Can I use the mouse wheel to adjust volume?
Yes. Hover over the volume slider and scroll to adjust it. You can change the wheel direction in the extension settings.
Can I mute a tab completely?
Yes. Move the boost slider to 0% to mute the audio being controlled by the extension. Move it back up when you want sound again.
Does it collect my data?
The extension’s audio processing runs locally in your browser. Settings are saved locally; the supplied extension code does not send audio or settings to a server.
Will it work if the popup is closed?
Yes. Once audio boosting starts, the extension’s audio engine is designed to keep running after the popup closes. Chrome may stop a capture session when a tab is closed or changes pages.
Can high volume damage my hearing or speakers?
Yes. Extremely high levels can cause distortion, listener fatigue or harm to your hearing and speakers. Start low, raise the level slowly, and reduce it if audio clips or sounds harsh.
The boost stopped after I changed pages. Why?
Chrome can end tab capture after a navigation or page refresh. Open the extension on the affected tab and move the slider to start it again.
How do I install Sound Booster?
Select “Add to Chrome” on this page, follow the Chrome Web Store installation steps, then pin the extension from Chrome’s puzzle-piece Extensions menu for quick access.
Does it work outside Chrome?
Sound Booster is a Chrome extension for browser tabs. It does not raise the system-wide volume of desktop applications.
Hear more of what you play
Free, safe and easy to install from the Chrome Web Store.
Add Sound Booster to Chrome