- Upload one or more images you want to resize.
- Choose a resize mode: by dimensions or by percentage.
- Enter the new dimensions or percentage.
- Click 'Resize All' to process all images.
- Download images individually or as a ZIP file.
How many images can I resize at once?
You can upload and resize multiple images at once. There's no strict limit, but for best performance, we recommend processing up to 50 images at a time. Each image should be under 10MB.
Will all images be resized to the same dimensions?
When using percentage mode, each image is resized proportionally based on its original size. When using dimension mode with 'Keep aspect ratio' enabled, images maintain their proportions while matching the specified width.
Is batch image resizing safe and private?
Yes, all image processing happens directly in your browser. Your images are never uploaded to our servers, ensuring complete privacy and security.
Deep dive into core image processing techniques including cropping, watermarking, format conversion, and compression optimization with code implementations in multiple languages.
Master image format conversion with our comprehensive guide. Learn when to use PNG, JPG, WebP, and SVG formats, and how to convert between them efficiently.
Master image optimization techniques. Learn WebP/AVIF formats, responsive images, lazy loading, compression algorithms, CDN acceleration. Boost website speed 50%+, improve SEO rankings!