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Increase video volume

Make the sound of a quiet video louder without changing its picture. Choose how many decibels to add, and peaks are limited softly so the sound stays clean.

Your files never leave your device. Everything runs in your browser.

How it works

  1. Add filesDrop audio or video files on the tool, or choose them from your device.
  2. Check the settingThe setting for this page is already selected; adjust it if you like.
  3. DownloadDownload each file, or all of them as a ZIP.

Why videos end up too quiet

Phones record with automatic levels that are often careful, screen recordings capture system sound at whatever volume the computer had, and a speaker far from the microphone sounds faint. +6 dB is a good first step for most quiet videos; +10 to +15 dB helps with very faint recordings. Listen to the result in the player before you download it.

Only the sound is encoded again; the picture is copied as it is, so there is no quality loss in the image and even a long video is done quickly. MP4 and MOV get AAC sound, WebM and MKV get Opus.

Making several clips equally loud

When clips recorded in different places should play at the same level, switch to Normalize and choose -14 LUFS. Each clip is measured and brought to the same loudness, whether it was quiet or loud to begin with.

Frequently asked questions

Does it change the video quality?

No. The picture is copied unchanged; only the sound is processed.

How many dB should I add?

Start with +6 dB. If it is still too quiet, try +10 dB, or use Normalize with -14 LUFS.

Are my files uploaded?

No. Everything is processed in your browser and the files never leave your device.

How much louder can I make a file?

Up to +30 dB. On a quiet recording that is a big boost; on a file that is already loud, more than a few dB mostly flattens the peaks.

Will the boosted file distort?

Peaks are limited softly above -1 dB instead of being cut off, so there is no harsh crackling. With very large boosts, loud parts can sound squashed.

What is LUFS?

Loudness units relative to full scale: a measure of how loud a recording sounds over its whole length. Streaming services and broadcasters use it to play everything at a similar loudness.

Can I make a video louder?

Yes. The sound is changed and the picture is copied unchanged.

Can it boost quiet speech without making the background loud?

No, the whole sound is raised by the same amount, including background noise.