Make any tab up to 400% louder — quiet YouTube videos, inaudible podcasts, and muffled video calls become easy to hear. Audio Tuner uses the Web Audio API to push any tab past your system's 100% ceiling.
Your operating system caps every tab at 100% of its original loudness. A volume booster removes that ceiling for any individual tab.
A volume booster is a browser extension that amplifies the audio of any tab beyond the maximum your operating system allows. When a YouTube video is mixed too quietly, or a video call comes in muffled, your laptop speakers have no headroom left — even at 100% system volume, the sound is barely audible.
Audio Tuner solves this with the Web Audio API. Every tab you boost gets its own audio graph with a gain node — a real-time amplifier running inside the browser. The gain node multiplies the incoming signal up to 4× (400%), so the same speakers that were too quiet at 100% suddenly have plenty of headroom.
This is per-tab amplification. Your music stays at its original level while a quiet meeting gets boosted; a podcast gets louder without touching the video you have muted in another window. There is no system-wide EQ, no driver, and no other app involved.
At extreme boosts (above ~250%) you may hear mild distortion on already-loud sources — Audio Tuner marks boosted tabs in amber so you can dial them back. For everyday cases like quiet YouTube, Netflix, Spotify, or Google Meet, the boost is clean and immediate.
Any tab that plays audio can be pushed past 100%. These are the most common.
Boost quiet uploads, whispered dialogue, and lectures recorded on bad mics up to 400%.
Match Netflix, Disney+, and HBO dialogue to the loudness of action scenes without reaching for your amp.
Push the Spotify web player past the browser ceiling so quiet masters fill the room.
Boost quiet callers in Meet, Zoom, and Teams web so you can actually hear the far end.
Lift quiet streamers or low-volume IRL feeds without touching the rest of your audio.
Quiet podcasts and online courses become audible on tiny laptop speakers.
No accounts, no configuration files, no permissions gymnastics. Install and boost.
Add Audio Tuner from the Chrome Web Store. It also works in Edge and Brave — any Chromium browser.
Click the puzzle piece in your toolbar and pin Audio Tuner so it is one click away whenever a tab is too quiet.
Open the popup, find the tab you want louder, and drag its slider up to 400%. Boosted tabs glow amber.
Everything you might want to know before you install.
Install Audio Tuner and get volume, mic, and webcam controls on every tab — without digging through settings. Free, private, ready in seconds.
