Video Volume Booster
Make a quiet video louder. Raise the gain up to 3x, listen to the preview, then download the louder video — everything happens in your browser.
MP4, WebM or any browser-supported video.
1x = normal, 2x = double, 3x = maximum. Sound can crackle at high gain — listen to the preview first.
How it works: The video plays in your browser, digital gain makes the audio louder, and the screen plus sound is recorded into a new video (WebM). For a long video, reaching the download takes about as long as the video length. Privacy: nothing is uploaded.
How to use
- Select your video file.
- Set the volume boost slider (from 1x to 3x).
- Press Preview with Boost to check that the sound is right.
- Press Boost & Download Video — when the recording finishes, the louder video will download.
Tips
- Raise the gain gradually and stop at the first level that sounds clear — too far adds distortion.
- Always listen to the preview before downloading the louder file.
- On very quiet originals, background hiss may rise along with the voices.