Frequently asked questions
Are my audio files uploaded anywhere?
No. All processing happens in your browser. Your files never leave your device — you can verify this in your browser's Network tab.
Do I need an account?
No. The tools work immediately with no sign-up.
Is there a file size limit?
There is no server-imposed limit. The practical limit is your device's available memory, since the file is held in RAM while processing.
Why do some conversions take a moment to start?
Codec conversions (MP3/OGG) load ffmpeg.wasm the first time you use them — about 30MB, fetched once and cached. WAV-based tools have no such step.
Does it work offline?
The WAV-based tools work offline once the page is loaded. Codec tools need a one-time download of ffmpeg.wasm.
Which browsers are supported?
Current versions of Chrome, Edge, Firefox and Safari. Codec tools require cross-origin isolation, which the app enables automatically.