Resize any image to custom pixel dimensions online. Set width, height or both while maintaining the original aspect ratio. Perfect for social media posts, website banners, profile pictures and print materials. Supports JPG, PNG and WebP. Free with no registration.
Drag & drop files here
or click to browse from your computer
Maximum file size: 50 MB
Image resizing adjusts the dimensions (width and height) to fit the intended use. Each platform has ideal sizes: profile picture, cover, post, or ad. Correct resizing ensures your image displays clearly without cropping or distortion across all platforms.
The tool lets you specify exact dimensions in pixels or percentage, with an option to preserve the original aspect ratio to avoid stretching. It uses optimization algorithms that maintain clarity when shrinking or enlarging. The whole process happens in your browser securely.
Always keep the original aspect ratio to avoid distorting the image. For shrinking, results are always excellent. For enlarging, start from a high-resolution image because upscaling a small image causes blur. Know the required size for the platform before resizing (e.g., 1080×1080 for Instagram).
Mistake one: unlocking the ratio so the image appears stretched. Two: enlarging a small image and expecting high clarity. Three: ignoring the recommended sizes for platforms. The toolyo.io tool preserves the ratio automatically and processes your images securely.