Quickly resize images to exact dimensions for websites, social media, and marketing. Perfect for maintaining aspect ratios while optimizing for different platforms.
Drag & drop your image here
or
Supports JPG, PNG, WebP, GIF, BMP (Max 20MB)
Resize images to any dimension with precision while preserving quality and aspect ratio control. Ideal for web developers, social media managers, and marketers who need to adapt images for different platforms, devices, and formats. Save time by turning one image into many sizes at once, with presets for favicons, app icons and social media, or process single files with our intuitive controls. Compatible with all major formats including JPEG, PNG, WebP, and GIF.
It keeps the width and height in the same proportion as the original, so the picture is not stretched or squashed. With Maintain Aspect Ratio on, changing one side updates the other automatically. Turn it off only when you need an exact size and do not mind distortion.
Yes. The Bulk tab takes one image and exports it at many sizes in a single ZIP, with presets for favicons, iOS and Android app icons, PWA icons and social media. Each size is drawn at exactly the dimensions listed, so use a square image for icon presets.
It depends on the mode. Single resizing sends your image to OpenTools' server, resizes it there and returns it without saving a copy. Bulk resizing runs entirely in your browser, so those images never leave your device.
Single mode accepts JPG, PNG, WebP, GIF and BMP files up to 20 MB and keeps the original format. Bulk mode works in your browser and gives the best results with JPG and PNG source images.
