The iPhone 14 and 13 Wallpaper size (1170×2532px)
1170x2532 pixels is the native resolution of the iPhone 14, iPhone 13, and iPhone 12 family, one of the most widely owned iPhone screen sizes. All use a tall 9:19.5 Super Retina display, so a wallpaper at this exact size fills the panel edge to edge with no upscaling and stays sharp on the lock and home screens.
Since this 19.5:9 shape is much taller than older iPhones, a wallpaper made for a 4:3 or shorter screen tends to crop or zoom when applied. Resizing to a native 1170x2532 provides iOS the precise vertical canvas it needs, keeping proportions correct and preventing the important part of your image from being cut off during the automatic fit.
Design with the interface in mind. The lock screen places a large clock in the upper-middle with the date above it, and the home screen covers its lower two-thirds with app icons and the dock. For a lock-screen wallpaper, keep faces and focal points in the central strip below the clock; for a home-screen wallpaper, choose something that still looks good behind rows of icons. This tool resizes entirely in your browser, so your photo is never uploaded, it is free, and your original quality is preserved while the file is fit to the 9:19.5 iPhone frame. Apple can change screen specs across models, so verify before exporting.