Audio Speed Changer
Change the playback speed and tempo of your MP3, WAV, M4A, AAC, or OGG audio files entirely in your browser. This tool runs 100% locally client-side using standard Web Audio APIs—meaning your files are processed completely inside your browser, keeping your lectures, audiobooks, and music private, confidential, and secure.
Load Audio File (MP3, WAV, M4A, OGG)
🎵 Drag & Drop audio file here
Supports major formats. Processing is completed 100% locally in-browser.
Tempo Adjustments
Resample Action
Ready: Waiting for audio file...