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Resize images to custom dimensions or social media presets. Works in your browser - no upload needed.
Click to upload or drag and drop
PNG, JPG, WebP (max 50MB)
Upload an image to get started
Our free image resizer tool lets you resize images to any custom dimensions or choose from popular social media presets. Perfect for optimizing images for Instagram, Facebook, Twitter, YouTube, and more.
Can I resize images for social media?
Yes! We have built-in presets for Instagram Post, Instagram Story, Facebook Cover, Twitter Header, YouTube Thumbnail, and HD resolution.
Will resizing affect image quality?
Upscaling may reduce sharpness, but downscaling preserves quality well. Use the aspect ratio lock to prevent distortion.
What file formats can I resize?
You can resize PNG, JPG/JPEG, and WebP images up to 50MB in size.
Which format is my resized image saved in?
The same format as your upload: a PNG stays PNG, a JPG stays JPG, and a WebP stays WebP. To change the format, use the Image Format Converter.
Does Image Resizer upload my files to a server?
No. All processing happens entirely in your browser. Your files never leave your device, ensuring complete privacy and security.
What is the maximum image size I can resize?
You can resize images up to 50MB in file size. The new width and height can each be up to 16,384 pixels, the largest size browsers can reliably draw.