Free Online Tool
Audio Volume Editor
Choose your own MP3, WAV, OGG, or FLAC audio file, adjust its volume, and add fade in or fade out effects in your browser. FLAC output avoids lossy compression.
Selected audio files are not uploaded to a server and are processed only in your browser.
Only use audio files that you own or have the right to edit. Do not edit or distribute copyrighted files without permission.
Volume: 100%
Increasing the volume too much may cause clipping or distortion.
Original Preview
Output Preview
Choose an audio file to see details.
The result will appear here.
Selected audio files are not uploaded to a server and are processed only in your browser.
How to Use
- Choose an audio file to edit.
- Select or enter a volume value.
- Add fade in or fade out if needed.
- Choose the output format.
- Click the apply button.
- Preview the result and download the file.
Examples
- Increase the volume of a FLAC recording to 150%
- Reduce a loud audio file to 70%
- Add a 1-second fade in to the beginning of a sound effect
- Add a 3-second fade out to the end of music
- Lower a voice file and make the ending fade naturally
Calculation and Conversion Notes
Audio volume editing works by decoding the selected audio file in the browser and applying the selected volume multiplier to each audio sample. 100% keeps the original volume, 50% reduces sample values by half, and 200% doubles the sample values. Saving as FLAC avoids lossy compression, but excessive volume increases may still cause clipping and distortion. Selected files are not uploaded to a server and are processed only in your browser.
FAQ
Is my audio file uploaded to a server?
No. Selected files are not uploaded to a server and are processed only in your browser.
What file formats are supported?
MP3, WAV, OGG, and FLAC files are supported.
Can I increase the volume above 100%?
Yes. However, increasing the volume too much may cause clipping or distortion.
Does saving as FLAC prevent distortion?
FLAC avoids lossy compression, but excessive volume increases can still cause clipping and distortion.
Can I apply fade in and fade out at the same time?
Yes. You can apply fade in at the beginning and fade out at the end.
What output formats are supported?
MP3, WAV, OGG, and FLAC output are supported. MP3, OGG, and FLAC are encoded in the browser using ffmpeg.wasm.
Can I use this on mobile?
Yes, but large FLAC files may take longer to process in a mobile browser.
Can I edit audio from an external URL?
No. This tool does not process external URLs. It only works with audio files selected from your device.
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