Is Change Audio Speed free to use?

Yes — Change Audio Speed is completely free on File Master, with no sign-up required and no watermarks added to your files.

Do I need to install any software?

No installation is needed. Change Audio Speed runs entirely in your browser — just upload a file and download the result.

What file formats are supported?

You can upload .mp3, .wav, .flac, .aac, .m4a, .ogg, .wma files and get MP3, WAV, FLAC, AAC, M4A, OGG as output.

Is it safe to process my files with File Master?

Yes. Files are transferred securely and are automatically deleted from our servers after a short retention window.