Reduce Video File Size Online
Cut a large video down to a size you can share or store. Everything runs in your browser, so the file is never uploaded.
How to Reduce a Video’s File Size
- Step 1Add the video
Drag the file in or click Choose a file. MP4 and MOV open fastest.
- Step 2Choose how small
Type a target in MB or pick a preset. Balanced quality suits most videos.
- Step 3Save the result
Press Compress, then download the reduced file. Your original stays untouched.
Your videos never leave your device
Compression runs in your browser. Nothing is uploaded to a server.
Pick the size you need
Type a target in MB and get a file under it. No bitrate maths.
No watermark
Your video comes out clean, with no logo or branding added.
No signup
No account, no email address, nothing to install.
Free
Free to use, as many times as you like.
Three steps
Choose a file, set a size, download. That's it.
Which Formats You Can Reduce
The tool reads whatever your browser can play, which covers most files from phones and cameras.
| Format | Typical source | Support |
|---|---|---|
| MP4 | Phones, screen recorders, most apps | Works best |
| MOV | iPhone, Mac, many cameras | Works best |
| WebM | Browser and screen recordings | Usually works in Chrome |
| MKV, AVI and others | Downloads, older cameras | Depends on your browser |
Target Size vs Quality
A smaller target means fewer bits for every second of video, so length matters as much as the number you pick.
A 30-second clip still looks sharp at 10MB.
A 10-minute video squeezed to 10MB will look soft. Raise the target for long videos.
The Small setting drops resolution sooner. High keeps detail and lands closer to your target.
FAQ
It depends on the video’s length and how much detail you’re willing to give up. Large phone videos often shrink to a small fraction of their original size.
Sometimes. At small targets the tool may lower the resolution, because a smaller clean picture looks better than a full-size blocky one. Choose the High setting to keep resolution longer.
No. Your videos never leave your device. The file is read, compressed and saved inside this browser tab.
Start with where the video is going. For a chat app or email, tap the matching preset. If you just want a smaller file to keep, try about half the original size and adjust from there.
Yes. If the result is still too big, compress it again with a smaller target. Each pass gives up a little more detail, so start from the original when you can.