Change Audio Speed
Speed audio up or slow it down, keeping the pitch or not.
Drop audio files to speed up or slow down, or click to choose
MP3, M4A, WAV, FLAC, OGG, Opus or WebM audio. Files are processed in your browser and never uploaded.
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Ctrl+OchooseCtrl+Vpaste
Speed up a lecture or podcast, or slow down a song to learn it: choose a speed from 0.5× to 2× and save, one file or many at once. Your files are processed on your device and never uploaded; it's free and needs no sign-up.
With Keep the pitch on, voices sound natural at any speed; with it off, the sound gets higher as it gets faster and lower as it slows, like a tape. The result is shorter or longer by the same factor.