Speed Changer
Speed up or slow down a video or song.
How to use
- 1Choose a video or audio file.
- 2Pick a speed with the slider or a preset like 2×.
- 3Keep Voice pitch natural ticked to avoid a chipmunk sound.
- 4Click Change speed, preview and download.
Frequently asked questions
What does Keep voice pitch natural do?
It changes the speed without making voices higher or lower. Untick it for the classic sped-up (chipmunk) or slowed-down (deep) effect.
Can I make a slow-motion video?
Yes. Choose 0.5× or 0.25×. Frames are shown for longer, so fast action looks smoother when the video was shot at high frame rates.
Can I speed up a lecture recording?
Yes. 1.25× to 1.5× with natural pitch is great for lectures and voice notes.
Is my file uploaded?
No. Everything runs on your device.
You may also need
Voice Changer
Chipmunk, robot, deep and more voice effects.
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Play any frequency from 20 Hz to 20 kHz.
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Extract audio from any video as MP3.
Ringtone Maker & MP3 Cutter
Cut a song into a ringtone with fade in/out.
Voice Recorder
Record your voice and save it as MP3.
Screen Recorder
Record your screen with voice, no watermark.