Free backgrounds
Browse public Cube-16 background samples, filter them by category, read bilingual descriptions and download the JPG files.
Use a portrait JPG for the best background fit in Cube-16. A tall image, ideally 1080 x 1920 or larger, will display more cleanly, and the file must stay under 1 MB.
23
JPG files
6
Public categories
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Languages
Client-side checks reduce accidental uploads: JPG signature, extension and file size are checked before a share or email draft is opened. Real malware scanning must still happen server-side if a backend upload is ever added.
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`r`n Submit your preferred JPG
Pick one JPG you want to recommend. The form validates the file locally, then opens a share flow or an email draft for cube-16_background@groupemomentum.ca.
The page only accepts portrait JPG/JPEG files, recommends a tall image such as 1080 x 1920 or larger, checks the file signature and size, and does not upload the file automatically. If a real upload service is added later, server-side antivirus scanning must be enabled before storing anything.
- Only portrait JPG/JPEG images are accepted.
- Recommended resolution: 1080 x 1920 or higher.
- The first bytes must match a real JPEG signature.
- File size is limited to 1 MB.
- On supported devices, the image can be shared directly through the system share sheet.