Razor Pages + FFmpeg

Boost quiet video audio without touching the picture quality.

Video Volume Booster analyzes the loudness of your source video, calculates a stronger target level, and rebuilds the audio with FFmpeg while keeping the original video stream intact.

Start processing How it works
Preview mode 20 seconds

Check the result before running the full export.

Boost range 10% to 500%

Fine-tune the output from a gentle lift to an aggressive gain.

Picture handling Video copy

The video stream is copied so your image quality stays unchanged.

Tool

Upload once, then choose preview or full processing.

The workflow is simple: upload a source video, choose the volume boost level, create a quick preview, and when it sounds right run the full export.

Input

Start a new job

Maximum file size: 1 GB

Choose a local video file

Recommended formats: .mp4, .mov, .m4v, .mkv, .webm, .avi. Files are stored on the server only long enough to complete processing and the scheduled cleanup window.

No file selected yet.

300%

Output

Processing status

Your processed video will appear here.

Once you submit a preview or full job, this area will show progress, measured loudness, playback, and a download link.

The interface stays simple and focused so you can upload a video, preview the result, and download the processed file without extra steps.

Why it works

Made for low-volume videos, lectures, demos, and screen captures.

FFmpeg loudness analysis

The app measures the current audio level first, then calculates a stronger target instead of applying a blind multiplier.

Video stream preserved

Only the audio gets rebuilt. The picture stream is copied directly so the original visual quality stays unchanged.

Preview before export

Generate a 20-second sample, listen to the result, then run the full job only when the loudness feels right.

SEO-friendly structure

The page ships with descriptive headings, metadata, FAQ schema, a sitemap, and server-rendered copy.

Instructions

How to use the site

  1. Upload a local video file from your device.
  2. Choose a boost amount between 10% and 500%.
  3. Use the preview button to process the first 20 seconds.
  4. If the preview sounds right, run the full video process.
  5. Download the final file when the status changes to completed.

FAQ

Common questions

Does this change the video quality?

No. The workflow copies the video stream and only rebuilds the audio stream.

Why keep preview and full processing separate?

Preview lets you confirm the loudness before spending time on a full export, especially for large files.

Does the page rely on third-party CSS or JS libraries?

No. The interface uses independent site CSS and vanilla JavaScript only.