1
Choose a local clip
Select or drop one video and wait for the processor to load.
Change Video Speed Online
Speed up a demonstration or slow down an action in one local video. Choose 0.25× to 4×, preview the pace and export a new MP4. Free, without uploading your footage.
Your video stays on this device.
How to speed up or slow down video
2
Choose the speed
Below 1× slows playback; above 1× speeds it up. Use a quick button or the slider.
3
Preview the pace
Use Play/Pause to check the source at the selected rate. This player is not the encoded result.
4
Export, download and review
Keep the tab open during export. Download the MP4, then check motion, sound, synchronization and the ending in a player.
Set one speed for your clip
Local processing
Your browser processes the video on your device; the source is not uploaded.
0.25×–4× speed range
Adjust in 0.25× steps, or use quick buttons for 0.5×, 1×, 1.5× and 2×.
Original remains unchanged
No account, credits or added watermark. Keep the downloaded copy separately.
MP4 export
Download one new MP4. There is no output-format, resolution or bitrate selector.
Preview and regenerate
Changing the speed clears the previous export. Create a new result before downloading again.
Copy when possible, re-encode when needed
Export may reuse the video stream or re-encode it. Quality and file size can change; lossless output is not guaranteed.
Video inputs and output
Try compatible MP4, MOV or WebM. Browser playback and export support depend on the codecs inside the file. Successful output is MP4.
MP4MOVWebMMP4 output
Example: shorten an assembly demonstration
For a 20-second product assembly clip, try 2× for roughly 10 seconds of action. If a crucial hand movement becomes hard to follow, try 1.5×. With narration, check that words remain understandable and that speech still matches the action in the exported MP4.
Prepare an excerpt with Trim Video. For a silent result, use Remove Audio. Reduce file size with the video compressor, or browse all free tools.
Video speed questions
Is changing video speed free?
Yes. No account, credits or DojoClip watermark are required.
Is my video uploaded?
No. Media processing is local, although the processor downloads first. Save your result before refreshing or leaving.
Why might preview or export fail?
A file extension does not guarantee supported codecs. There is no fixed input size or duration cap, but large videos can exceed memory or processing capacity. Try a smaller compatible source.
Can I change only part of the clip or create a speed ramp?
No. One constant rate applies to the whole video. There is no time-range selection, speed curve or exact-duration input. Trim an excerpt first if only that part needs changing.
What happens to speech and music?
The first audio track, if present, is tempo-adjusted and encoded as AAC. Large changes can alter how speech or music sounds; listen to the exported file. There is no track selector, pitch, volume or mute control.
How does the speed affect duration?
As a guide, divide source duration by the speed: 2× is about half as long, 0.5× about twice as long. Track endings and encoding can affect the exact result, so inspect the download.
Will slow motion create smoother detail?
No new motion frames are generated. Slowing footage with few source frames can look choppy, and it does not remove motion blur. There is no AI interpolation or optical-flow option.
Does this control video speed on other websites?
No. It creates a downloadable file from your local video. It is not a browser extension or a playback control for streaming sites.