Increase Video Volume

Adjust the audio volume of your videos securely, right in your browser. No uploads, no privacy risks.

Volume Booster

Upload a video file (MP4, MOV, AVI, etc.) and adjust its audio volume. Processing happens locally via WebAssembly.

Drag & drop a video file

or click to browse (MP4, MOV, AVI, etc.)

Only video files are accepted

How It Works

1Select a video – Drag & drop or click to browse. Files stay in your browser.
2Choose volume level – Select a multiplier (e.g., 200% for double volume, 50% for quieter).
3Boost & Download – Click Boost; FFmpeg loads (once) and processes the audio locally. Video stream is copied untouched.

Why Use Local Volume Booster

Key advantages

The video stream is copied without re‑encoding, preserving original quality. Only audio is processed.

Your video never leaves your computer. All processing happens inside your browser using WebAssembly.

Boost volume of 1GB, 5GB or even 10GB videos. No artificial limits because everything runs on your hardware.

Choose from 50% (quieter) up to 400% (4× louder). Works with MP4, MOV, AVI, MKV, and more.