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About this tool
Build 16:9 Meet backgrounds blurred to the segmentation-mask limit, with an edge-keying index and Meet upload checks.
Google Meet Background Maker generates a 16:9 background at Meet's specs — 1920x1080 recommended, 1280x720 minimum, JPG or PNG under 16 MB — and blurs it to the radius where browser selfie segmentation can no longer resolve the detail. Because that segmentation mask runs at roughly 256x144, one mask cell is about 7.5 export pixels on a 1920-wide image, and Nyquist says a feature has to be smeared across two cells to stop aliasing on the cut-out edge. The result is a background that keys cleanly instead of shimmering around your shoulders.
Open Google Meet Background Maker on AltFTool — it loads instantly in your browser.
Add your input to the workspace.
Adjust the options until the result looks right.
Copy or download the output and put it to work.
The recommended radius comes from the segmentation mask resolution and the Nyquist limit, not a fixed guess.
Blur adequacy, silhouette-band contrast and pattern busyness are each scored and shown separately.
Minimum size, 16:9 aspect and the 16 MB upload cap are verified against the file you actually produced.
1920x1080 pixels at 16:9 works best; the minimum Meet accepts is 1280x720. Upload as JPG or PNG and keep the file under 16 MB.
The segmentation mask that separates you from your room runs at about 256x144, so fine detail in the background cannot be represented cleanly at the edge. Blurring the background past roughly two mask cells — about 15 px on a 1920-wide image — removes most of the halo.
No. The background is composited on your own device before encoding, so bandwidth depends on your camera resolution and the codec, not on how detailed the background looks. Heavy segmentation does use more CPU or GPU.
Meet mirrors your self view so that moving left feels natural, but other participants see the unmirrored image with the text the right way round. Ask a colleague to confirm, or judge it from the unmirrored preview here.