Image Resizer
Resize images to any dimension online. Maintain aspect ratio or set custom width and height. Supports PNG, JPG, WebP.
Quick answer:Image resizing changes the pixel dimensions (width × height) of an image without changing its format. Resize to exact pixel sizes for social media (Instagram 1080×1080, Twitter 1500×500), email (max 600px wide), or product listings. All processing happens client-side — your image never leaves your device.
Azam Sharieff· Finance & Tools Reviewer
Last reviewed:
Stop Guessing With Image Sizes
Every single social media platform, website builder, and print shop demands different arbitrary image sizes. Trying to upload a portrait photo into a square Instagram profile picture slot usually results in heads getting chopped off or weird, blurry zooming.
This tool puts you in complete control of your pixels. Instead of relying on a platform's automatic cropping tool to ruin your photo, you can type in the exact width and height you need, ensuring your images look sharp and professional everywhere.
The Golden Rule: Aspect Ratio
The number one mistake people make when resizing images is 'squishing' them. Pro-tip: Always leave the aspect ratio lock naturally checked.
When the lock is on, you only need to type in the new width, and the tool will automatically calculate the perfect height so your subject doesn't look magically wider or taller than they are in real life. If you absolutely need a specific non-proportional size, just unlock it and we'll force the photo into your exact dimensions.
Pixels, file size and aspect ratio
Resizing changes the pixel dimensions, which usually also reduces file size. Keep the aspect ratio locked so the picture is not stretched. Common targets: 1200 × 630 pixels for link-preview images, 1080 × 1080 for a square social post, and 1280 × 720 for a YouTube thumbnail.
Enlarging has limits
Making an image smaller is safe, but enlarging it adds no new detail and tends to look soft or blocky. Start from the biggest original you have. After resizing, reduce weight further with the Image Compressor and trim unwanted edges with the Image Cropper. Cropping changes the composition while resizing changes the size, so use the one that matches your goal.