Change the Speed of a Video
Speed up or slow down a video while keeping the audio pitch natural.
- Input:
- MP4, WEBM, MOV, MKV
- Output:
- MP4
- Max size:
- 100 MB
- Runs:
- On secure servers
What the Video Speed Changer does
Speed up a video for time-lapse style clips or slow it down for slow motion, from 0.25× to 4×. The audio is adjusted to match, or removed if you prefer.
Options
- Speed (0.25×–4×).
- Remove audio.
How to use the Video Speed Changer
- 1
Drag your MP4, WEBM, MOV, MKV file into the upload area, or click it to browse your device.
- 2
Adjust the options to suit your needs — the defaults work well for most files.
- 3
Click “Run Video Speed Changer” to start processing.
- 4
Preview the result, then download it. Batch results can be downloaded together as a ZIP.
Supported formats
- MP4 is the most widely supported video container, usually with H.264 or H.265 video and AAC audio. More about the MP4 format.
- WebM is an open video format using VP8/VP9/AV1 video and Opus/Vorbis audio, designed for the web. More about the WebM format.
- MOV is Apple's QuickTime container, used by iPhones and many cameras. More about the MOV format.
- MKV (Matroska) is a flexible container that can hold many video, audio and subtitle tracks.
Frequently asked questions
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