Reduce your image file sizes to specific KB or MB targets
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Supports JPG, PNG, WebP, and more
Many online platforms have strict file size limits that stop users from uploading large images. Fortunately, with our free image size reducer, you can easily compress oversized pictures to fit any requirement. ReduceImagesOnline makes it simple to reduce an image to a specific size in KB or MB, whether you want to shrink JPG, PNG, or GIF files to 100 KB, 1 MB, or any custom size. Get your images down to the perfect file size in just seconds!
Upload your images and set target file sizes in KB or MB
Our algorithm finds the optimal quality to reach your target size
Get your compressed images at the exact file sizes you need
Our KB/MB compressor allows you to set exact target file sizes. Simply upload your image, enter your desired size (e.g., 50KB or 2MB), and our smart algorithm will automatically adjust the compression quality to meet your target size while preserving image quality as much as possible.
KB (kilobytes) is best for small images like thumbnails, profile pictures, or web icons (typically under 500KB). MB (megabytes) is better for larger images like high-resolution photos, banners, or print materials. 1MB equals 1,024KB, so choose based on your specific needs.
Yes! You can set a default target size for all your images. Upload multiple files, set your desired KB or MB target, and all images will be compressed to approximately that size. This is perfect for creating consistent file sizes for websites or applications.
Our algorithm finds the optimal balance between file size and image quality. Due to image complexity and compression limitations, the final size might vary by 5-15% from your target. The tool prioritizes maintaining visual quality while getting as close as possible to your specified size.
If the target size is very aggressive, the tool will compress to the maximum extent possible while maintaining basic image integrity. You'll see a warning if the target size might result in significant quality loss. Consider using a larger target size or reducing image dimensions first for better results.