Audio Speed Changer Online Free

Drop audio file here or click to upload

MP3 · WAV · AAC · OGG · FLAC — up to 100 MB

Upload your audio

Upload your MP3, WAV or AAC file to the Speed Changer tool.

Set playback speed

Drag the slider or click a preset: 0.5×, 0.75×, 1×, 1.25×, 1.5×, 2× or 3×.

Check new duration

The estimated new duration is shown automatically based on speed.

Download

Click "Change Speed & Download" and save your speed-adjusted WAV file.

Can I slow down a song without changing pitch?

Speed and pitch are mathematically linked in basic resampling. For pitch-independent speed change, use a DAW like Audacity with Time-Stretch.

What is 0.5× speed?

0.5× plays audio at half speed, doubling the duration. Useful for learning difficult music passages or speech.

What speed should I use for studying?

Most people find 1.25× to 1.5× ideal for audiobooks and lectures without losing comprehension.

Is slow speed used in slowed+reverb?

Yes — slowed+reverb typically uses 0.75–0.85× speed combined with reverb. Try the Slowed+Reverb tool for a one-click version.

Audio Speed Changer Online Free

Change audio speed online free. Slow down or speed up MP3, WAV 0.25x to 3x. No pitch change needed. Instant download, no software install. MusicKIK uses the Web Audio API to process everything locally in your browser — your files never leave your device.

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RELATED: 🌊 Slowed+Reverb 🎼 Pitch Changer 🔈 Bass Boost ⏮ Reverser

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