Video Resizer
Fit a video to 16:9, 9:16, 1:1 or 4:5 for YouTube, Reels, TikTok and Shorts.
Vidzo gives you three free video tools. Each one runs in your browser, so your video stays on your device, and none of them needs an account.
You can chain them. A common workflow is to resize first, then compress the result before you upload it.
A current version of Chrome, Edge, Firefox or Safari on a laptop or desktop gives the smoothest results. Phones work too, though long or very high resolution videos need a lot of memory. Processing takes about as long as the video, and the tab needs to stay visible while it works.
New to video sizes? Start with our guide to video sizes and aspect ratios, or read the FAQ.