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Check before you upload

Measure the actual pixels, detect the image format and catch unwanted alpha channels. Free, no account needed, and your files stay in this browser.

Check your actual export

Your files are read in this browser. This tool does not upload, save or send their contents to a server.

Up to 10 files, 20 MB each and 32 megapixels per image. These are this tool’s processing limits.

Accepted dimensions for iPhone 6.9-inch

1260 × 2736; 2736 × 1260; 1290 × 2796; 2796 × 1290; 1320 × 2868; 2868 × 1320 pixels.

Primary large iPhone slot. A 6.5-inch set is required when an iPhone app has no 6.9-inch set.

Mac, Apple Watch, Apple Vision Pro, Apple TV, Wear OS, Android TV, Automotive and XR files are outside this checker’s current coverage. Animation, content policy, colour profiles and screenshot-set completeness are not validated.

What does a pass mean?

A pass means the file matches the dimensions and format checks for the selected slot under the September 10, 2026 rule version. It does not verify app content, complete device coverage, store approval or promotional eligibility.

Apple sizes, explained

Choose the correct iPhone or iPad slot and understand accepted portrait and landscape sizes.

Need a reproducible example? Download the passing and failing test files.