Frequently asked questions
How does it work?
Choose a video, pick what you want to do with it, and download the result. Everything happens on your own device, so nothing is uploaded and you don't need an account.
Is my video uploaded?
No. Your video is processed on your own device. The site has no upload feature and no server that receives your videos. The website host and other providers may still process ordinary technical data such as IP addresses; see the Privacy Policy.
Is it really free?
Yes. There is no account and no subscription. The site is intended to be supported by advertising in the future.
How much smaller will my video get?
It depends on the video and the level you choose. Before you start we show an estimated size for Low, Medium and High compression for your video, and the exact size is shown when it finishes. Easy footage such as a talking head shrinks a lot; very detailed footage shrinks less. Videos that are already efficiently compressed won't shrink much, and we tell you when that happens.
What do Low, Medium and High compression mean?
Low keeps the best quality for modest savings. Medium (recommended) gives large savings and still looks good. High makes the smallest file, with softer detail especially in busy scenes and on very detailed footage. Nothing is ever scaled up.
How big a video can it handle?
It depends on your device's memory and browser, so we don't promise a fixed maximum. Short and medium clips usually work well on a computer; very large files or older phones may fail with a clear message.
Why is compression slow on my device?
All the work happens on your device, so newer computers are much faster than older ones. You can cancel at any time.
Which formats work?
Common video files such as MP4, MOV and WebM generally work in current Chrome, Edge and Safari. Compress and Join videos always save an MP4. The other tools keep your video's own format unless they make a different kind of file (Convert, GIF maker, Extract audio, Video to image). Some files, for example certain newer iPhone videos in some browsers, may not open.
Will the quality get worse?
Making a file smaller means storing less detail, so some quality is lost, most visibly with High compression and on busy, fast-moving video. You can compare the original and the result side by side before downloading, and choose a lower level if you're not happy.
Does it change the length of my video?
Not unless you use Trim. After compressing, the result page shows the original and compressed lengths and warns if they differ unexpectedly.
Which tools are there?
Compress, Convert, Trim, Rotate or flip, Crop, Extract or remove audio, Video to image, GIF maker, Join videos, and Add text or a logo. Each has its own page, linked from the home page and the menu at the top.
Can I use it on my phone?
It is built for phones as well as computers. How well it works depends on the phone and its browser. Phones have less memory than computers, so a very large video may fail, and you get a clear message if it does. A computer will usually manage it.
Why does a tool say my browser cannot do it?
Browsers differ in what kinds of file they can make. Firefox, for example, cannot make the sound that MP4 files and M4A audio need, so Convert to MP4 and Save as M4A can fail there. Chrome and Edge handle the most. When a tool cannot finish, it says so straight away.
How do I make a GIF smaller?
Use a smaller width, fewer pictures per second, or a shorter moment. A GIF stores every picture on its own with at most 256 colours, so it grows quickly. Here a GIF can last up to 15 seconds.
What shape is a joined video?
The joined video uses the size and shape of the first clip. A clip with a different shape gets black bars, so nothing is stretched. A clip with no sound gets silence, so sound and picture stay together.
Can I take off a logo or text I added?
No. The mark is drawn into every picture of the new video. Keep your original so you can start again.