What this tool is for
Video speed changer
Speed up or slow down a clip. The aim is a useful result without making you learn a full piece of software first.
Free · No sign-up · PrivateVideo, GIF & Audio
Change this video’s speed.
Speed the clip up or slow it down and export a new WebM copy in your browser.
1 Choose2 Adjust3 Download
Status
Choose a video to begin.
Browser support varies. WebM is used because it can be encoded directly by modern browsers without a server.
Before you finish
A quick check makes a better result.
OutMonkey is built to be simple enough for someone doing this once and useful enough for someone who does it every day.
Good to know
Play the result before you share it.
Watch the beginning and end, then jump through the middle. Make sure the picture, sound, timing and orientation survived the change you made.
After export, play the file in an ordinary browser or phone viewer. That is a better final check than trusting the editor preview alone.
In plain English
You do not need to be an expert.
For a one-off video job, you usually do not need to understand codecs or timelines. Check that the result looks right and works where you plan to use it.
For one-off jobs, a focused tool is usually faster than opening a full video editor.
File size & formats
Large videos need more patience.
What can I use?
Choose a video format your browser can open. Browser-based video exports use WebM where the tool needs to re-encode a clip.
Is there a size limit?
There is no extra OutMonkey file-size cap in these browser tools. Your device memory and browser are the practical limit, so very large or long videos can be slow or fail.
If the file is huge
Shorter clips and ordinary phone-sized videos are the safest fit. Keep this tab open while a video is processing.