Change Video Speed
Speed up or slow down a video locally in your browser. Choose 0.25× to 4× and export as MP4 or WebM.
Preview
Slow down or speed up a video directly in your browser. No file is uploaded.
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Speed
Good to know
Good to know
The video speed changer speeds up or slows down a video directly in your browser using a speed factor, with a live-calculated new duration. A toggle determines whether the pitch changes with speed or stays preserved.
Typical searches include speed up video, slow down video, and change video speed. Three quality levels — Compact, Balanced, and High — plus an audio option are available. Pitch, sync, and intelligibility can change depending on the chosen factor and pitch setting.
Typical use cases
Create a time-lapse effect for long recordings
Increase the speed factor to condense a long screen recording or time-lapse sequence into a short, watchable duration.
Create slow motion with preserved pitch
Reduce the factor below 1 and enable “preserve pitch” so speech or music doesn't sound unnaturally low when the video is slowed down.
Tips for better results
Check the new duration before exporting
The live-displayed new duration helps estimate whether the chosen factor fits the planned video length.
Match the pitch setting to the purpose
For a comedic effect, the pitch can deliberately change with speed; for intelligible speech, preserved pitch is recommended.
How it works
How it works
Step by step
Features
Features
Live preview of the new duration
The new video duration is calculated instantly as the speed factor is changed.
Preserve or change the pitch
Choose whether the pitch stays preserved when speed changes or naturally shifts with it.
Local processing
Your video never leaves your device; the speed change runs entirely in the browser.
Frequently asked questions
Frequently asked questions
Does the pitch stay the same when speed changes?
It depends on the chosen setting: “preserve pitch” keeps it constant, otherwise it naturally changes with speed.
Is my video uploaded?
No. The speed change runs entirely locally in the browser, without transmission to a server.
More tools
More tools
Video Trimmer
Trim the beginning and end of a video directly in your browser. Choose precise or fast trimming, preview and download with no upload.
Mute Video
Remove every audio track from videos directly in your browser - no upload and no video re-encoding.
Video Compressor
Reduce video file size directly in your browser. Choose quality, target size, resolution, frame rate and audio with no upload.