Resize any image for 30+ device sizes — iPhone, Samsung, Google Pixel, MacBook, iPad, and desktop. Upload once, download resized versions for all your devices. 100% browser-based, no upload to server.
Direct-link pages for specific devices — pre-configured with the exact resolution you need.
Modern phones use non-standard aspect ratios — the iPhone 15 Pro uses 9:19.5 while Samsung uses 9:20. If you set a 16:9 image, your phone will crop, zoom, and shift the image, often cutting off important details near the edges. Pre-resizing to your device's exact resolution means the wallpaper appears exactly as you designed it, with no automatic cropping.
Crop to fit (recommended) — fills the whole screen but may crop edges. Best for photos with clear subjects in the center.
Contain — fits the entire image with black bars. Best for wallpapers with text or subjects that must not be cropped.
Stretch — distorts the image to fit exactly. Use only for solid colors or patterns that stretch well.
No upload happens. All resizing runs 100% in your browser using the Canvas API. Your image never leaves your device. This means the tool works even offline once loaded, and you can resize private photos without any privacy concern.
Upload any format your browser supports — JPG, PNG, WebP, GIF, HEIC (on newer browsers), AVIF, BMP, and SVG. Output is always PNG at full resolution for maximum quality. If you need JPG or WebP output, use our format converter tool after resizing.