Audio Volume Changer
A free audio volume changer with precise gain control from −20 to +20 dB and real-time preview. Normalize to YouTube, Spotify, or podcast standards, add fade effects, and edit specific sections — all in your browser.
Adjust volume of any audio file — boost, normalize, or fine-tune MP3, WAV, FLAC for free
Select a section on the waveform to adjust volume
Features
How to Change Audio Volume
- Upload your file. Drag and drop an audio file into the upload zone or click "Browse". Files up to 1 GB are supported.
- Adjust the volume. Move the gain slider from -20 to +20 dB. Listen to the result in real-time — the sound changes instantly.
- Add effects (optional). Optionally enable normalization, add fade effects, or edit specific sections.
- Save the result. Choose an output format and click "Save". The processed file will download to your computer.
What You Can Do With This Tool
- Increase volume of quiet recordings — voice messages, podcasts, audiobooks
- Reduce volume of overly loud tracks
- Normalize audio to YouTube, Spotify, Apple Music or podcast standards
- Add smooth fade in and fade out effects
- Adjust volume of specific sections — make the chorus louder or the intro quieter
- Trim unwanted parts at the beginning or end
- Convert to any format: MP3, WAV, FLAC, OGG, M4A, OPUS
Supported Formats
Upload files in MP3, WAV, FLAC, OGG, M4A, OPUS, AAC, WMA, AIFF formats. Save in any popular format. Conversion happens automatically without quality loss.
Why Choose Our Audio Volume Changer
No software to download, no registration needed. Increase or decrease volume, normalize, add fades — all in one tool. Processing is instant thanks to modern web technologies. Complete privacy — files never leave your browser. Support for all popular formats. Free with no limits or watermarks.
Frequently Asked Questions
How do I make audio louder without distortion?
Use the normalization feature — it automatically raises the volume to the maximum possible level without clipping. For even better results, try the audio enhancer. Also watch the "Peak" indicator — if it's close to 0 dB, further amplification will cause distortion.
How do I reduce or lower the volume of an audio file?
Upload your file and move the gain slider to the left (negative dB values). Start with -3 to -6 dB and listen to the result. You can also use the "Sections" tab to lower volume of specific parts only, like making a loud intro quieter.
Can I boost volume of just part of the recording?
Yes! Go to the "Sections" tab and select the desired segment on the waveform. You can set a separate volume level for the selected section and apply changes without affecting the rest of the recording.
Is it safe to upload my files?
Completely safe. All processing happens locally in your browser — audio files are never sent to any server. Your recordings remain private.
When do I need normalization?
Normalization is useful when you need to match platform standards: YouTube requires -14 LUFS, Spotify -14 LUFS, podcasts typically -16 LUFS. This helps avoid jarring volume differences between tracks.
What is the maximum file size? Can I process large files?
The maximum file size is 1 GB. Files up to 150 MB are processed quickly on most devices. For larger files (150 MB – 1 GB), processing speed depends on your device's RAM and processor. Modern devices with 4+ GB of RAM typically handle large files without issues. All processing happens locally in your browser.
