Does changing speed also change the pitch?

Yes, speed and pitch move together, like a record player sped up or slowed down.

Does Audio Speed Changer upload my files to a server?

No. Audio Speed Changer runs entirely in your browser using on-device processing, your files never leave your device.

Speed up or slow down an audio file.

Runs in your browser

See it in action

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Drop an audio file here, or click to browse

Runs entirely in your browser using an on-device audio engine. The engine downloads on first use, then it's cached.

Trim Audio

Cut an audio file down to a specific start and end time.

Audio Converter

Convert audio files between common formats.

Text to Speech

Convert written text into natural-sounding speech.

Speech to Text

Transcribe your speech into text using your microphone.