Resize Video to Square (1:1)
Square is the format that survives every feed. Export your video at 1080×1080. Keep the whole frame with bars, or crop it to fill. Everything runs on your device.
How to make a video square (1:1, 1080×1080)
- 1
Import your video
Drop your file. It stays on your device, nothing is uploaded.
- 2
Pick the 1:1 preset
1:1 exports 1080×1080. Choose contain to keep the entire image with bars top and bottom, or fill to crop into a full square frame.
- 3
Get your MP4
Run the resize and save your square MP4, ready to post.
Right size, then the edit.
Once your video fits the platform, Montaj adds subtitles, cuts the silences and cleans up the sound. Automatically, on your device, no cloud.
Frequently asked questions
How do I make a video square?
Import it here and pick the 1:1 preset, the export is 1080×1080. Contain keeps the whole image and adds bars; fill crops the sides into a full square.
What size is a square video?
1080×1080 pixels, a 1:1 ratio. That’s what this tool exports when you pick the 1:1 preset.
Does a square video count as a YouTube Short?
Yes. YouTube categorises an upload as a Short when its aspect ratio is square or vertical and it runs up to three minutes. A rule that applies to videos uploaded from 15 October 2024.
Square or vertical, which should I pick?
Vertical (9:16) fills the screen on TikTok and Reels. Square wastes less space in scrolling feeds and works whichever way the phone is held. If you only export once, square travels further.
Is my video uploaded anywhere?
No. The resize runs entirely in your browser, on your device. Nothing is sent to a server.