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Control and boost the volume of any tab up to 600%. Per-tab volume control with bass boost and voice enhance. Volume Master lets you control and boost the volume of any browser tab from 0% to 600%. Per-tab volume control with bass boost and voice enhance — all running locally in your browser. FEATURES ⭐ Up to 600% volume boost ⭐ Control volume of any tab independently ⭐ Fine-grained control: 0% – 600% with smooth slider ⭐ Bass Boost — enhance low frequencies for richer, deeper sound ⭐ Voice Boost — make dialogues, podcasts, and lectures clearer ⭐ Quick presets — Mute, 50%, 100%, 200%, 400%, MAX with one click ⭐ Switch to any tab playing audio with just one click ⭐ Volume badge indicator on toolbar icon ⭐ Scroll wheel and keyboard arrow key support ⭐ Power toggle to enable/disable without losing settings HOW IT WORKS Click the Volume Master icon in your toolbar. A slider appears letting you adjust volume from 0% to 600% for the current tab. Each tab remembers its own volume setting independently. The extension uses the Web Audio API to route audio through a professional-grade audio chain: Source → Bass Filter → Voice Filter → Gain → Compressor → Output The built-in compressor prevents harsh clipping and distortion even at maximum boost levels. PERFECT FOR 🎬 Quiet YouTube videos that need a volume boost 🎓 Online lectures and courses with low audio 🎙 Podcasts that are hard to hear 🎵 Music streaming on any website 📺 Netflix, Hulu, and streaming sites with inconsistent volume 💻 Video calls and meetings on Zoom, Google Meet, Teams 🎮 Browser games with quiet sound effects BASS BOOST Turn on Bass Boost to add extra depth and punch to your audio. Enhances low frequencies around 200Hz, perfect for music, movies, and gaming. VOICE BOOST Turn on Voice Boost to make speech clearer and easier to understand. Enhances frequencies around 2.5kHz where human voice is most present. Great for podcasts, audiobooks, lectures, and video calls. QUICK PRESET BUTTONS Skip the slider and jump to common volume levels instantly: - Mute — silence the tab completely - 50% — reduce to half volume - 100% — browser default - 200% — moderate boost - 400% — significant boost - MAX — full 600% amplification AUDIO TAB SWITCHER See a live list of all tabs currently playing audio. Click any tab in the list to switch to it instantly — no more hunting through tabs to find which one is making noise. PRIVACY & SECURITY This extension: ✓ Runs entirely in your browser ✓ Makes zero network requests ✓ Stores no personal data ✓ Contains no ads or tracking ✓ Free forever — no subscriptions PERMISSIONS EXPLAINED - "Read and change all your data on the websites you visit": required to connect to the AudioContext of any website playing audio and to control its volume KEYBOARD SHORTCUTS After opening the popup: → Right arrow / Up arrow: increase volume by 5% ← Left arrow / Down arrow: decrease volume by 5% Mouse scroll wheel also works on the slider. FULL SCREEN NOTE Chrome shows a blue rectangle icon in the tab bar when any extension is manipulating audio. This is a Chrome security feature and cannot be bypassed. Press F11 (Windows) or Ctrl+Cmd+F (Mac) to improve the full-screen experience. Simple. Reliable. Free. Boost your audio today.