Audio Volume Booster

Effortlessly increase the decibel amplitude of quiet iPhone field recordings, lectures, and quiet music MP3s instantly.

Upload Quiet Audio

Boost volume exponentially for podcasts that were recorded too softly, making them easy to hear while driving in loud cars.

Loudness Control

Quiet (0.5x)BaseLoud (5x)

Distortion Warning

Increasing volume dramatically above 300% (3x multiplier) without dynamic compression limits will cause hard audio clipping. Your vocals might sound "crushed" or severely distorted inside loud sections.

Client-Side Loudness Amplifier

Recording distant lectures from the back row of a university hall often results in audio files that are basically completely inaudible, even when your system volume is pushed to exactly 100%. Bypassing these physical limitations mathematically requires boosting the actual digital wavelength structures burned inside the file string buffer natively.

How does volume multiplication operate locally?

Using the embedded FFmpeg audio engine running dynamically via WebAssembly integration, we parse your audio tracking and physically apply the volume filter vector. Setting this value to `2.0` iterates through every single audio byte array and literally multiplies the baseline amplitude scale by precisely two-times, drastically generating loud audio directly inside your offline browser.

About Audio Volume Booster

This is a free, fast, and fully client-side audio volume booster tool. All processing is done locally within your browser to ensure maximum privacy and security. No data is sent to our servers. Bookmark this page for quick access to ad-free, high-performance SEO and developer utilities.