Resize Images
Change image dimensions while preserving quality and aspect ratio
Upload an image
Drag and drop or click to browse
Max size: 10MB
Image resizing is essential for web performance, social media, and optimizing storage space. Our free online image resizer lets you change image dimensions instantly without uploading to external servers—everything happens securely in your browser.
Supported Formats
Resize images in all popular formats: JPG/JPEG, PNG,WebP, GIF, and BMP. The original format is preserved after resizing.
Common Use Cases
- Web Performance: Resize large images to match display dimensions, reducing page load times by up to 80%
- Social Media: Create perfectly sized images for Instagram posts (1080×1080), stories (1080×1920), Facebook covers, and more
- eCommerce: Standardize product images for consistent catalog presentation
- Email Marketing: Optimize image dimensions for better email deliverability
- Thumbnails: Generate smaller preview images for galleries and listings
Related Tools
Need more than resizing? Try our other image tools:
What image formats can I resize?
You can resize JPG, PNG, WebP, GIF, and BMP images. The output maintains the original format unless you choose to convert it using our Convert tool.
Will resizing reduce image quality?
Our resizing algorithm uses high-quality interpolation to minimize quality loss. For best results, resize down rather than up, and avoid multiple resize operations on the same image.
Is there a maximum file size limit?
Yes, the maximum file size is 10MB per image. This limit ensures smooth performance across all devices since processing happens entirely in your browser.
Are my images uploaded to a server?
No! All image processing happens directly in your browser using WebAssembly technology. Your images never leave your device, ensuring complete privacy.
Can I resize multiple images at once?
Yes! Pro users can use our Bulk Processing tool to resize up to 100 images at once with consistent settings and download them as a ZIP file.
What are the preset sizes for?
Our presets include popular social media dimensions (Instagram, Facebook, Twitter, YouTube) and common web sizes. They help you quickly resize images for specific platforms.