About the tool
A studio in your browser
Upload one to eight screenshots, add a caption to each, and choose Android, iPhone or both outputs. Reorder or replace screens and apply a consistent visual style. Primary and secondary colors are optional.
What AI does
FLUX.2 klein 4B uses an abstract reference of your screen colors, your palette and the context you provide to imagine a background. Choose a creative direction and add an optional idea; each generation creates a new variation. Clean, Gradient and Editorial only apply without AI. The background keeps its original colors, then frames, intact screenshots and your captions are added. The original artwork is available in the results.
Output files
24-bit RGB PNG with no alpha channel. Android: 1080 × 1920, or 1920 × 1080 landscape. iPhone: 1320 × 2868, or 2868 × 1320 landscape. The ZIP contains only the selected Android and iOS folders. Files are numbered in editor order.
Limits to know
This version covers phones and accepts mixed orientations. It does not convert Android interfaces to iOS or create tablet screenshots. Inputs are PNG, JPEG or WebP, up to 20 MB and 24 megapixels each, with 100 MB per batch. Captions that cannot fit legibly are rejected.
Google Play: screenshots · App Store: screenshot specifications