Load audio and export
Choose a format and sample rate to create a new audio file on this device.
Balance sound quality and file size.
Vorbis VBR quality; higher values sound better.
Choose an audio file to begin.
Output preview
What is this tool for?
Use Web Audio API to decode, resample and compress WAV, MP3 and OGG locally, with MP3 bitrate and OGG quality controls.
3-step quick guide
- 1Choose an audio file supported by the browser decoder.
- 2Set the output format, sample rate and compression controls.
- 3Encode locally, play the preview and download the output.
Privacy statement
Audio is handled in the current page with Web Audio and browser encoders; it never leaves the device.
There is no file-upload endpoint; practical speed depends on device performance and browser support.
Frequently asked questions
Can every audio format be decoded?
Source support depends on the browser Web Audio decoder. Common WAV, MP3 and OGG files usually work; M4A support varies.
Is audio uploaded?
No. Decoding, resampling and encoding run on the current device.
Are large files limited?
There is no server upload cap, but long audio uses more memory and CPU. Test a short clip first.