EqualLoud

About

EqualLoud — Automatically balance loudness across every tab. Install and forget it.

Ever switch between a YouTube video, a podcast, and a music tab, and find yourself reaching for the volume knob on every single switch? A loud ad blows your ears off, then the podcast is whisper-quiet. EqualLoud fixes that: every audio/video tab you open is automatically brought to the same target loudness, in the background, with zero interaction.

✨ Features

• 100% automatic — works the moment audio starts playing. No clicking, no setup, no per-site enable.
• Cross-tab balancing — every playing tab converges to one loudness target, so loud ads, quiet podcasts, and normal videos all sit at the same level.
• Boost and cut — quiet content is lifted up toward the target, not just loud content pushed down. No more "I can't hear this podcast at all."
• Per-tab A/B toggle — one click to hear any tab with vs. without balancing.
• Output limiter — on by default, so a loud boost never distorts or clips.
• Survives restarts — your settings are remembered; balancing resumes automatically after a browser restart.

🔒 100% on-device. Nothing is ever uploaded.

EqualLoud processes audio locally in your browser using the ITU-R BS.1770 loudness standard (EBU R128). It does not collect, upload, or track any data. No analytics, no telemetry, no servers. See the privacy policy for details.

🎯 How to use

1. Install the extension.
2. Open tabs with audio — YouTube, podcasts, music, anything with a video or audio player. They're balanced automatically.
3. Loudness evens out across tabs within a few seconds.

Click the toolbar icon to:
• Toggle balancing on/off
• Drag the target-loudness slider (presets: Broadcast / Streaming / Podcast / Loud)
• See the live gain applied to each tab (+5.2 dB, −3.0 dB, …)
• Toggle per-tab balance on/off to A/B the effect

⚠️ Known limitations

• DRM content (Netflix HD, Disney+, etc.): Chrome forces protected media silent when an extension takes over the audio. EqualLoud detects this and falls back to a simpler volume-only control (attenuate, no boost).
• The <all_urls> permission is required so balancing works on every site automatically. EqualLoud processes audio locally and uploads no data anywhere.

Open source: https://github.com/mzaxd/EqualLoud