Aspect Ratio Converter

The Cybro Tools Aspect Ratio Resizer is a precise, free online tool that crops and resizes your images to exact aspect ratios for any platform, all processed directly in your browser without any uploads. Whether you need Instagram's 4:5 portrait, Facebook's 16:9 cover, Twitter's 2:1 header, or any custom ratio, our tool ensures your images fit perfectly every time. Our preset collection includes all major social media dimensions: Instagram (1:1, 4:5, 9:16), Facebook (16:9, 2:1 cover), Twitter (2:1 header), LinkedIn (4:1 banner), YouTube (16:9 thumbnail), and Pinterest (2:3 pin). The custom ratio tool lets you enter any width:height proportion. The interactive crop overlay lets you drag and position the crop area. The tool maintains your original image quality throughout the crop operation.