Adjust Video Volume

About Adjust Video Volume

This online video volume adjuster allows you to increase or decrease the volume of video files directly in your browser. Adjust volume from 0% (mute) to 500% (5x amplification). All processing happens locally for complete privacy.

What video formats are supported?

Input: MP4, WebM, MOV, and other common formats. Output: You can keep the same format as input or convert to MP4, WebM, or MOV.

How do I adjust video volume?

Upload your video, use the volume slider to set your desired level (0% to 500%), or choose a quick preset. Then click 'Adjust Volume' to process. You can preview the result before downloading.

What is the file size limit?

The maximum file size is 100MB. This ensures smooth processing in your browser. For larger videos, consider using desktop video editing software.

Can I increase volume above 100%?

Yes! You can increase volume up to 500% (5 times the original). However, be careful with very high volumes as they may cause audio distortion or clipping, especially if the original audio was already loud.

Will video quality be affected?

The video stream is copied without re-encoding, preserving 100% original visual quality. Only the audio stream is processed with the new volume level. This tool uses FFmpeg for professional-grade audio processing.

Can I preview before downloading?

Yes! After processing, you can preview the video with adjusted volume to verify the result is what you want before downloading.

Is my video file safe?

Absolutely! All video processing happens directly in your browser using FFmpeg.wasm (WebAssembly). Your video file is never uploaded to any server. Everything stays private on your device.

Why does FFmpeg take time to load initially?

FFmpeg.wasm is a powerful video processing library (about 30MB) that runs in your browser. It only needs to load once per session. After loading, all volume adjustments will be fast and efficient.

How long does processing take?

Processing time depends on your video length and device performance. A typical 1-minute video takes 10-30 seconds. Longer videos or slower devices may take more time.