Resize Images Online
Resize your images to exact dimensions. Set max width and height while maintaining aspect ratio.
Drop images here or click to upload
PNG, JPG, WebP — up to 50MB each
Set exact width and height in pixels
Maintains aspect ratio automatically
Supports PNG, JPG, and WebP formats
Resize and compress simultaneously
Batch resize multiple images
Perfect for social media dimensions
Frequently Asked Questions
Does resizing reduce image quality?
Downscaling (making smaller) preserves quality well. Upscaling can introduce blurriness. For best results, only resize images to smaller dimensions.
Can I resize to specific social media dimensions?
Yes! Set the max width and height to your desired dimensions. Common sizes: Instagram (1080×1080), Twitter (1200×675), Facebook (1200×630).
Can I resize and compress at the same time?
Yes! Compresso lets you resize dimensions and adjust quality simultaneously, so you get perfectly sized and optimized images in one step.
Does Compresso maintain aspect ratio?
Yes, by default Compresso maintains the original aspect ratio. When you set a max width or height, the other dimension scales proportionally.
Is resizing free?
Yes, completely free with no limits. All processing happens in your browser — no account needed.
Are my images uploaded to a server?
No. All resizing happens locally on your device. Your images never leave your browser.