# Increase MP3 volume

> Make quiet MP3s, voice memos, and recordings permanently louder — boosted on your device, ready to play anywhere.

Fix quiet or uneven audio: normalize loudness to broadcast standards (EBU R128, −14/−16/−23 LUFS) with a two-pass measure-then-apply process, or simply boost by a set number of decibels. Video audio is corrected without touching the picture. In-browser; no upload.

## Quiet MP3s, evened out

Old rips, voice memos, downloaded lectures, and files from different sources all sit at wildly different volumes — one track whispers, the next one shouts. A fixed decibel boost fixes a single quiet file; loudness normalization brings a whole folder of mismatched files to the same standard level, the way streaming services do it.

Everything runs locally in your browser: no upload queue, no file size anxiety, and your recordings never leave your device.

## Frequently asked questions

### Does boosting reduce MP3 quality?

The audio is re-encoded once at a high bitrate (192 kbps), which is indistinguishable for speech and nearly all music. What can hurt quality is boosting too far — if loud moments begin to distort, use Normalize mode, which measures the file first and applies a safe gain.

### What audio formats work besides MP3?

WAV, M4A, AAC, FLAC, OGG, and most other common formats. MP3 and WAV files keep their format; others are saved as M4A. Video files work too — only their audio track is changed.

### Can I make all my files equally loud?

Yes — that is exactly what Normalize mode is for. Run each file through with the same LUFS target (-16 LUFS is a good default for spoken audio) and they will all match, instead of each getting the same blind boost.

### Is it really free?

Yes. The volume booster is completely free, with no signup, watermarks, or limits. We make money from our video translation service, not from this tool.

### Do you upload my files?

No. The volume adjustment happens locally in your browser using WebAssembly. Your file never leaves your device — you can even disconnect from the internet once the page has loaded.

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_Free · No sign-up · No watermark · Runs entirely in your browser — your file never leaves your device._

- Open this tool: https://easydub.video/tools/volume/increase-mp3-volume
- All free EasyDub tools: https://easydub.video/tools