Image Resizer

Getting your images to the right size should not require installing software or creating an account. This free image resizer runs entirely in your browser, so your photos never leave your device. Upload a JPG, PNG, or WebP file, pick your target dimensions, and download the result instantly.

The tool includes ready-made presets for Instagram: 1080x1080 for square posts, 1080x1350 for portrait, 1080x1920 for stories, and 1080x566 for landscape. Each preset matches the exact pixel dimensions that Instagram recommends, so your uploads always display at full quality without unwanted cropping.

You can also enter any custom width and height. The aspect ratio lock keeps your image proportional by default, and you can turn it off for manual control. A warning appears if the target size exceeds your original resolution, so you always know when an upscale would reduce sharpness.

Every social media platform has recommended image sizes. Uploading an image that does not match these dimensions means the platform will crop or compress it automatically, often cutting off important details. By resizing before you upload, you keep full control over what your audience sees.

For Instagram specifically, posts uploaded at the correct resolution appear sharper in the feed and on the Explore page. A 1080x1350 portrait takes up more screen space than a square, which can increase engagement. Stories at 1080x1920 fill the entire screen without black bars or blurry edges.

Beyond social media, resized images load faster on websites, fit email templates without breaking layouts, and meet the requirements of print services. Having a quick tool that handles all these scenarios saves time across every project.