The short answer
Chrome cannot play a tab louder than 100% on its own. To go past that you need something that amplifies the sound before it reaches your speakers. Install Turn It Up, Son!, open the tab that is too quiet, click the extension icon, switch it on and drag the volume slider up. It goes as high as 700%, and every tab keeps its own level.
Start around 120 to 200%. On most quiet videos that is all it takes, and it keeps the sound clean.
Why 100% is the ceiling in the first place
Every volume control you already have, the slider in the video player and the one in Windows or macOS, can only turn the sound down from what the page sends. At 100% you hear the audio exactly as it was delivered. There is no "more" setting, because there is nothing in that chain that adds volume.
So when a lecture was recorded quietly, a podcast was mixed low, or your laptop speakers are just small, maxing every slider still leaves you leaning towards the screen. Getting past it means multiplying the sound itself. That is what a volume booster does: it takes the tab's audio, raises it, and plays it back.
Step by step
- Add the extension. Turn It Up, Son! is on the Chrome Web Store and also runs in Edge and Brave.
- Press play on the quiet tab. The extension boosts a tab that is already making sound. It cannot start playback for you.
- Click the extension icon in the toolbar and switch it on for that tab.
- Drag the volume slider up, or tap one of the quick buttons: 100%, 200%, 400%, 600% or MAX.
- Check the toolbar icon. It shows the boost for the current tab and turns amber above 300%, so you always know where you left it.
The level belongs to that one tab. A quiet lecture can sit at 250% while the music in the next tab stays at 100%.
How loud is 700%, really?
The percentage is how many times the sound wave is multiplied. Your ears do not hear that in a straight line, so the numbers feel smaller than they look:
- 200% is about 6 dB louder. Clearly louder, not twice as loud.
- About 300% is roughly 10 dB, which most people hear as twice as loud.
- 700% is about 17 dB louder. That is a lot, and it is meant for really quiet sources.
That is also why going from 300% to 500% often changes less than you expect. Most of the useful boost happens early on the slider.
Keep it clean, not crunchy
Past a certain point the sound has nowhere left to go, and the loudest moments get chopped off. That is the gritty, crackling sound people blame on boosters. The slider marks where it starts with a red clipping zone.
- The limiter is on from the start. It presses the loudest peaks down so a heavy boost still sounds clean. Leave it on.
- Keep Character on Clean. It is the default. Loud plays harder but lets more of the grit through.
- Go easy on bass. Bass boost and the bass heavy presets eat the same headroom as volume. Run both high and something has to give.
Stop loud ads from jumping out
A heavy boost has one annoying side effect: an advert that was already loud comes in even louder. Turn on Jump protection in the extension settings. It holds a sudden jump in loudness back to the level of what you were listening to, instead of letting it hit you. It is off by default and well worth switching on if you use a big boost or headphones.
What it cannot do
- Some pages are off limits. Browser pages such as settings or the new tab page, and the Chrome Web Store itself, are blocked for every extension by Chrome.
- It cannot add what the speakers cannot play. Small laptop speakers get louder, but they will not suddenly produce deep bass. Headphones get the most out of it.
- It changes what you hear, not the file. It is a listening tool. Nothing is recorded or saved.
Look after your ears
The limiter protects the sound, not your hearing. Clean audio at a dangerous volume is still a dangerous volume, and headphones put all of it right next to your ears. Use the boost to fix a quiet source, then bring it back down when you no longer need it.