Key features
- per-tab volume boosting above the site's default maximum
- designed to work across any website with audio
- aims to preserve audio clarity at boosted volumes
- simple popup slider for adjusting boost level
What Ultra Volume Booster does
Ultra Volume Booster amplifies the audio output of a browser tab past the volume ceiling a website normally allows. You control the boost from the extension's popup while the tab plays audio, which is useful for videos, calls, or music that sound too quiet even at maximum volume on the site itself.
Ultra Volume Booster free vs paid
Ultra Volume Booster is free to install from the Chrome Web Store, with its core volume-boosting feature available without a separate purchase, based on the listing.
Is Ultra Volume Booster safe?
The extension needs access to audio playing in your browser tabs to adjust its output level. This is standard for a volume-boosting tool. Since it works on a per-tab basis, it shouldn't affect other applications' audio outside the browser.