Local audio tools
Volume Changer
Make audio louder or quieter, or normalize its peak level. Preview and download an MP3 or WAV with the new volume applied.
Start with an audio file
Drop a file here, or choose one from your device.
MP3, WAV, OGG, M4A, FLAC, AAC · Up to 50 MB and 10 minutes. Decoding support depends on your browser.
100% keeps the original level. Peak normalization uses one gain across the whole recording and preserves stereo balance.
Output & effects
Three steps to your next audio file
- 01
Choose a supported audio file. It is decoded on your device so you can preview the original.
- 02
Select MP3 or WAV, then adjust volume, reverse playback, or add fades as needed.
- 03
Generate and preview your result. Download it or select it in Continue editing for the next tool.
Frequently asked questions
Is peak normalization the same as loudness leveling?
No. Peak normalization sets the highest sample peak to −1 dB and applies the same gain throughout the file. It does not balance quiet and loud passages or target a LUFS loudness value.
Which formats can I open and save?
Open MP3, WAV, OGG, M4A, FLAC or AAC when your browser supports the codec. Save MP3 at 192 kbps or WAV PCM 16-bit, at 44.1 kHz, in mono or stereo. Files are limited to 50 MB and 10 minutes; tags and artwork are not copied.
Do I need to upload my file or spend credits?
These three tools decode and process your selected file on your device, without uploading it to EZAudio. They do not require a login or credits. If you later choose a cloud tool in Continue editing, that tool uses its normal upload and credit rules.