Adjust audio volume online free
Adjust the volume of your MP3, WAV, FLAC audio files with precision. 100% free, no signup.
Drag and drop your audio files
or click to select (MP3, WAV, FLAC, OGG, AAC, M4A)
Supported audio formats
How to use this tool
Step 1
Upload your audio file
Step 2
Adjust volume with the slider
Step 3
Download the modified file
Guaranteed privacy
100% local adjustment in your browser. No files sent to our servers.
Amplify or reduce sound of your files
Our volume adjustment tool lets you boost quiet recordings or reduce files that are too loud. Ideal for balancing volume across multiple tracks before mixing.
Adjust Volume Without Distortion
Our Convertly Audio tool precisely adjusts volume, preventing clipping or distortion. The audio quality, bitrate, and original format (MP3, WAV, FLAC, OGG, AAC, M4A) are 100% preserved in the modified file.
Increase or Decrease Volume for Free
No registration, no software required. Our Convertly Audio volume adjustment tool is completely free and usable on any browser, on desktop, tablet, or smartphone.
Adjust Volume Precisely in Decibels
Set the exact gain in decibels (dB), from -30 dB to +30 dB. Ideal for normalizing multiple tracks, saving a too-low recording, or reducing a saturated file for a balanced mix, with optional fade in / fade out.
Fast and Secure Volume Adjustment
Processing is done locally in your browser using FFmpeg WebAssembly. Your Convertly Audio files never leave your device, ensuring total privacy and maximum speed.
Discover all our audio tools
Cut, merge, convert, normalize and enhance your audio files in a few clicks.
Related audio tools
Frequently asked questions
How to increase the volume of an MP3 file?
Upload your audio file. Our tool allows you to adjust the loudness effectively. Use the slider to increase the volume, boosting the intensity up to +200% without reaching an unwanted peak. You can also attenuate the sound if needed, ensuring optimal LUFS levels before downloading your modified audio.
By how much can I increase or decrease the volume?
You can adjust the volume from -50 dB to +20 dB as needed. Ideal for amplifying audio that is too quiet or reducing the volume of a recording that is too loud.
Does adjusting the volume cause distortion?
Our tool applies intelligent limiting to prevent saturation during amplification. The output remains clean even with high gains, without noticeable clipping.
Can I normalize multiple files at once?
Yes, process multiple files in series with the same volume adjustment. This is useful for standardizing a playlist, podcast, or compilation to a consistent level.