Every image stays proportional while fitting inside the requested dimensions.
Aspect ratio preserved
Resize Images Online
Set maximum pixel dimensions for photos, product images, thumbnails, and social posts. Resize a complete batch locally while keeping every image in proportion.
IMAGE RESIZER
Change image width and height
BatchAspect RatioPixels
Drop images to resize
JPG, PNG, WebP, and browser-readable HEIC images
Up to 50 MB each and 20 images at a timeImages to Resize0 images
Start with common HD, square, advertising, and thumbnail sizes.
Resize up to 20 images without uploading them to a remote service.
Resize photos and images by pixel dimensions
Enter a maximum width, a maximum height, or both. OmniKit calculates a proportional output that fits within those boundaries, so a landscape photo and a portrait photo can share one batch without being stretched.
Images are not enlarged by default because upscaling increases pixel dimensions without recovering detail. Enable enlargement when a platform requires a specific minimum size and a larger output is still useful.
Image resizing questions
Does resizing crop or stretch the image?
No. This tool fits the complete image inside the requested width and height and preserves its original aspect ratio.
Can I provide only a width or only a height?
Yes. Clear either field and OmniKit calculates the missing dimension from the image’s original proportions.
What format will the resized file use?
JPG, PNG, and WebP inputs keep their format. A browser-readable HEIC image is exported as JPG because browsers do not provide a standard HEIC encoder.