Change Video Volume

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Make a video louder or quieter, or normalize its loudness to a consistent, broadcast-standard level.

Drag & drop a video here, or click to browse

Accepted: MP4, MOV, WEBM, MKV, AVI, M4V. Up to 20 MB.
Loudness is balanced to a broadcast standard (EBU R128) — great for dialogue and clips with uneven sound.
Very high volumes can distort (clip) loud parts of the soundtrack.
Normalize loudness
Live preview
100% Original
Auto New volume
Upload a video to hear the new volume before you apply it.
The preview plays the original — normalization is applied when the video is processed.
Adjusting the volume…
Your video is ready

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How it works
1
Upload a video — MP4, MOV, WEBM, MKV, AVI or M4V.
2
Choose auto-normalize or a custom level and hear a live preview right in your browser.
3
Apply it — the picture is not re-encoded, only the audio track is adjusted.
Popular conversions
Increase video volume Lower video volume Normalize audio Make a video louder Make a video quieter
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About Change Video Volume

Change Video Volume makes a clip louder or quieter, or evens it out automatically. Auto-normalize balances the loudness to the EBU R128 broadcast standard — the recommended fix for quiet dialogue and clips with uneven sound — while custom mode sets an exact level from 25% down to a 300% boost.

A live preview lets you hear the new volume in your browser before anything is processed, complete with a level meter, and the page warns you when a big boost risks clipping the loudest parts of the soundtrack.

Only the audio track is adjusted — the picture is not re-encoded, so there is no visual quality loss and processing stays fast. The result downloads as an MP4, free of charge.

How to use Change Video Volume

  1. Upload a video — MP4, MOV, WebM, MKV, AVI or M4V.
  2. Choose Auto-normalize, or pick a custom level between 25% and 300%.
  3. Toggle the live preview to hear the new volume before applying it.
  4. Click Change volume.
  5. Download the adjusted MP4.

Frequently asked questions

Pick a custom level above 100% — 150%, 200% or a 300% boost — and use the live preview to find the right amount. For dialogue that drifts between loud and quiet, Auto-normalize usually gives a better result than a flat boost.

Normalization measures the clip’s overall loudness and adjusts it to the EBU R128 broadcast standard, so the video plays at a consistent, comfortable level alongside other content. It is the recommended mode for most clips.

It can. Pushing very high levels may clip the loudest peaks and sound harsh — the tool warns you when that risk applies. Preview the boost first, or let normalization set a safe level automatically.

No. The video stream is passed through untouched — only the audio track is re-encoded. Your picture keeps its exact original quality.

Yes, adjusting or normalizing a video’s volume is free. The file is processed on the server and cleaned up automatically afterward.
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