The official source for Ultra Motion and all Alight Motion mod versions.
UMV Engine — Upload to TikTok Uncompressed, Keep Your Original Quality
UMV Engine (Ultra Motion Video Engine) is the free TikTok uncompressed upload method. TikTok normally compresses every upload and makes videos blurry; UMV Engine prepares your file so TikTok keeps the original quality completely uncompressed. It is 100% free with no signup, no annoying credits and no limits on resolution, fps or length.
Everything runs inside your browser, right on your device. Your video is never uploaded to us or to any server, and nobody can see it but you.
How it works
Choose your video. Any resolution works.
Let it process. Your video is prepared right on your device.
Download the finished file and post it to TikTok like you normally would.
UMV Engine FAQ
Is UMV Engine really free?
Yes, completely. No signup, no annoying credits, and nothing to pay for, ever. It's a completely free tool made by Ultra Motion Official for creators.
Are there any limits?
No, none at all. Any resolution, any fps, any length, and you can process as many videos as you want. The only limit is what your device can handle.
Is my video uploaded anywhere?
No. Everything happens inside your browser, on your own device. Your video never touches our servers or anyone else's, so nobody can see it but you.
Why do I need Chrome?
The engine uses multithreading technology that currently works reliably in the Chrome browser on Android and computers. Other browsers may fail or run very slowly.
How long does it take?
It depends on your device, the length of the video and the quality you pick. Quick is the fastest, Balanced is the sweet spot for most videos, and Max takes the longest. It's much faster on a computer than on a phone, and the total time is shown when it finishes.
Will TikTok still compress my video?
No. UMV Engine prepares your file using a special method, so TikTok keeps your original quality completely uncompressed and your video stays sharp instead of turning blurry.