Resize Video
Change a video's resolution to 1080p, 720p, 480p or 360p while keeping its aspect ratio. Smaller dimensions mean a smaller file and faster uploads.
- Runs entirely in your browser
- No sign-up, no watermark
- Free and unlimited
Need to scan documents from your phone?
VideoKit
Compress • Trim • Convert • GIF
How to use Resize Video
- 1
Drop a file onto Resize Video, or click to choose from your device.
- 2
Set any options for how the file should be processed.
- 3
Press the action button — everything runs in your browser.
- 4
Download the result. Nothing is uploaded or stored.
What you get
- 1080p / 720p / 480p / 360p
- Aspect ratio kept
- Audio copied unchanged
- Runs on your device
What happens to your files
This tool runs entirely in your browser. The file you choose is read into memory, processed on your device, and offered back as a download. Nothing is uploaded and nothing is kept once you leave the page.
There is no account, no email, no watermark and no daily limit. Come back whenever you need it.
Frequently asked questions
- Will it change the shape of my video?
- No. The width is calculated from the height you pick, so the aspect ratio stays the same.
- How large a video can I use?
- Up to 300 MB. The video is processed in your browser's memory, so very long or very large files can run out of it. For those, the free VideoKit mobile app processes videos natively on your phone.
- Is my video uploaded anywhere?
- No. FFmpeg runs inside your browser tab as WebAssembly, so the video never leaves your device. The first run downloads the video engine (about 30 MB) from this site once and reuses it afterwards.