Round video corners
Give a video smoothly rounded corners over a background colour you choose, right in your browser. Nothing is uploaded.
Files are processed in your browser and never uploaded.
How to use Round video corners
Add your file
Drop your video file onto the upload area, or tap the area to choose it from your device.
Set the options
Choose Corner radius and Background. Every setting is on screen before you add a file, so you can see what the tool will do before it runs.
Run it and save
Press Round & export, Don →. The button stays disabled until there is something to work on, and each file shows its own progress and result. Press Round & export, Don →. Each finished file keeps a name based on the one you started with, so you can tell the versions apart.
What this tool does
Adjustable corner radius
The corner radius is a slider, so you can go from a slight softening to a fully rounded card.
Choose background colour
The rounded corners sit over a background colour you choose, since video has no transparency to fall back on.
Keeps original audio
The original audio track is carried across untouched, so nothing has to be added back afterwards.
Quick engine with no download
The quick engine uses your browser's own encoder and needs no extra download, which makes it the faster choice for short clips.
ffmpeg engine for MP4 output
The ffmpeg engine downloads once and produces MP4, which is the format to pick when the result has to play everywhere.
Runs in your browser, nothing uploaded
Every frame is drawn and encoded in your browser, so the video is never uploaded.
Frequently asked questions
Is my video uploaded?
No. The video is processed entirely in your browser on your own device, so it never leaves your computer or phone.
Can the rounded corners be transparent?
Standard video files cannot store transparency, so the corners are filled with the background colour you pick. Choose the colour of the page or app where the video will sit and the rounding blends right in.
How long does it take?
The clip is processed as it plays through once, so it takes roughly as long as the video itself. A one minute clip takes about one minute.
Does it keep the sound?
Yes, the original audio is included in the exported file in browsers that allow it, such as Chrome and Edge.
Which browser and format?
The Quick engine works best in Chrome or Edge and saves a WebM video with no download. The ffmpeg engine downloads a built-in engine (about 31 MB) the first time and saves an MP4, which plays almost everywhere. Pick whichever you prefer.
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