Images from tiny to 4K, plus vertical and extreme aspect ratios, for testing scaling and layout.
Each card starts with one representative test file. Choose a use case, search, or filter to find a specific profile; a card’s variant menu contains its related samples.
5 test families · 21 available files · Page 1 of 1
Placeholder
A 1200×630 placeholder image with its dimensions labelled on a coloured grid: a drop-in stand-in for testing layouts, responsive images, and thumbnail generation. Part of an avatar-to-Full-HD placeholder pack.
Resolution Ladder
A fruit still life rendered at 1080×1920 (vertical 9:16) with a faint registration grid: part of a ladder from 16px to 4K for testing scaling, thumbnail generation, and responsive layout on recognisable content.
Upscale Set
Bicubic downscale to 128×128 from the 1024px reference. Use as a super-resolution input.
Upscale Set
Bicubic downscale to 128×128 from the 1024px reference. Use as a super-resolution input.
Formats
A portrait 9:16 (270×480) clip with a vertically-moving marker: the aspect ratio of phone and short-form video. A fixture for testing vertical-video handling, orientation, and letterboxing in players and thumbnailers.
