🔊 Volume Booster

Increase, decrease, or normalize audio volume — visual level meter, no upload

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Coming Soon

Volume Booster is currently under development. Meanwhile, try our existing tools:

✂️ Audio Trimmer 🔄 Converter 🔊 Text to Speech
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Volume Boost up to 500%
Increase volume by up to 5x with a simple slider.
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Normalize Audio
Auto-detect peak volume and normalize to optimal level.
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Visual Level Meter
See waveform and peak levels before and after adjustment.
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100% Private
All processing in your browser. Files never leave your device.

Free Online Volume Booster & Audio Normalizer

Volume Booster lets you increase the volume of quiet audio files or normalize audio to a consistent level. Upload a quiet recording, boost the volume, and download the result — all in your browser without any server.

Volume Boost vs Normalization

Volume boost increases the entire signal by a fixed amount (e.g., +6dB or 200%). Normalization analyzes the peak level and adjusts the volume so the loudest part reaches a target level (usually -1dB). Normalization is smarter — it prevents clipping while maximizing perceived loudness.

Common Use Cases

Boosting quiet voice recordings from phone or laptop microphones. Normalizing podcast episodes to consistent volume. Matching volume levels across multiple tracks. Making quiet audiobook chapters louder.

While Volume Booster is being built, try our Audio Trimmer, Audio Converter, Text to Speech, or Voice to Text.

Frequently Asked Questions

How much can I boost audio volume?
Up to 500% (5x) increase. For best results, use normalization which automatically finds the optimal level.
What is audio normalization?
Normalization analyzes the peak volume and adjusts it to a target level, maximizing loudness without clipping or distortion.
Is my audio uploaded?
No. All processing happens locally in your browser using Web Audio API.