Loudness control
Free Online Audio Volume Changer
Raise quiet recordings, soften overly loud exports, and normalize quick edits with browser-based FFmpeg processing. Your files stay on your device from upload to download.
FFmpeg runs in your browser, which keeps source files off external servers.
Built on a mature open-source audio engine instead of custom DSP shortcuts.
Ideal for quick private edits when you only need a louder or softer export.
Drag & drop audio here, or click to upload
Supports MP3, WAV, M4A, FLAC, OGG, AAC, and more
How to change audio volume online
- 1.Drop in an audio file or click the upload box to browse from your device.
- 2.Choose a preset or drag the volume slider until the target loudness matches your use case.
- 3.Pick MP3 or WAV export, then run the FFmpeg-powered process and download the adjusted file.
Why use this volume tool?
Useful for quiet recordings
Bring up lecture captures, voice memos, interviews, or exported stems that sound too soft on phones and laptops.
Fast browser-based workflow
The processing happens locally with a mature FFmpeg engine compiled to WebAssembly, so there is no upload queue.
Simple export options
Keep things straightforward with MP3 for sharing or WAV for editing and archiving.
Safer loudness decisions
Preset buttons, preview panels, and plain-language guidance make it easier to avoid over-processing.
Common use cases
- •Increase a recorded meeting before sending it to teammates.
- •Lower a backing track that is overpowering a spoken voiceover.
- •Prepare cleaner demo exports for clients without opening a DAW.
- •Fix inconsistent source levels before trimming, merging, or converting.
Tips for better results
- •If the source already distorts, boosting volume will not repair it. Start from the cleanest file you have.
- •For speech, modest changes such as 110% to 150% usually sound more natural than extreme boosts.
- •Export to WAV if you plan to do more edits afterward, then create a final MP3 only at the end.
Volume changer FAQ
Does this tool normalize loudness automatically?
This page gives you direct volume control instead of one-click normalization. That makes it better for fast manual fixes when you already know whether the track should be louder or quieter.
Will boosting volume damage quality?
The tool does not add compression by itself, but strong boosts can expose clipping or background noise that already exists in the recording.
Which formats can I upload?
Most common browser-decodable formats are supported, including MP3, WAV, M4A, OGG, FLAC, and many AAC-based files.
Is my audio uploaded to a server?
No. The page runs FFmpeg in your browser, so the source file stays on your device during processing.