Online Image Resizer
Resize JPG and PNG images by width and height without stretching. Upload one or many images, keep aspect ratio and download optimized versions for web, email and social media.
Free Online Image Resizer – Resize JPG and PNG Without Stretching
The Image Resizer from ConvertFree.net is a fast way to make your photos and graphics fit any layout without installing extra software. Instead of manually scaling each picture in a design tool, you can upload one or many JPG/PNG images, enter a maximum width and height and let our server do the hard work. The tool keeps the original aspect ratio, so your images never look squashed or stretched, and you can choose not to enlarge smaller images to avoid unnecessary upscaling.
Under the hood, the resizer uses the Imagick engine running on our own hosting, with no external conversion APIs. You get predictable results on every upload: each image is resized to fit inside the box defined by your width and height while preserving sharpness with a high-quality resampling filter. This makes it perfect for preparing images for blogs, online shops, email newsletters and social media posts where consistent sizes matter.
When you upload a single image, the tool returns a direct download for the resized file. When you upload multiple images, it converts each one separately and bundles the results into a ZIP archive so you can download everything at once. Converted filenames are cleaned and labeled with “-resized” plus an index, which keeps your folders tidy and prevents accidental overwrites.
The Image Resizer works well alongside your other ConvertFree.net tools. You can first extract pictures from documents using Extract images from PDF or convert pages with PDF to JPG and PDF to PNG, then resize those images here for faster loading. If you need to change formats at the same time, you can combine this resizer with JPG to PNG or PNG to JPG, and finally build documents with JPG to PDF or PNG to PDF.
ConvertFree.net is built with clean HTML structure, fast loading times and ad placements that work well with Google AdSense guidelines. There are no watermarks, no forced registrations and no hidden limits – just a straightforward image resizer that you can bookmark and use any time you need to quickly resize a batch of images for web, email or social media.
Image Resizer – Frequently Asked Questions
How do I resize an image online on ConvertFree.net?
Upload one or more JPG/PNG images, enter a maximum width and/or height in pixels and click “Resize images”. ConvertFree.net scales each picture to fit within those limits while preserving the original aspect ratio, then gives you a direct download or a ZIP archive with all resized files.
What happens if I only enter width or only height?
If you enter only a maximum width, the tool adjusts the height automatically to keep the same aspect ratio. If you enter only a maximum height, it adjusts the width. If you enter both, the image is resized to fit inside that box while maintaining proportions, so nothing is stretched.
What does “Do not enlarge smaller images” mean?
When that option is enabled, images that are already smaller than your target dimensions will not be upscaled. For example, if a photo is 600px wide and you set a maximum width of 1200px, the tool will leave it at 600px instead of enlarging it. This helps preserve quality and avoids unnecessary blurriness.
Can I resize multiple images at once?
Yes. You can upload a whole batch of images, and the resizer will apply the same width/height settings to every file. If more than one image is processed, the results are packaged into a ZIP archive so you can download all resized pictures in one click.
Are my images safe and deleted automatically?
Your files are processed only on ConvertFree.net servers and are never sent to external conversion APIs. We also run an automated cleanup job that regularly removes old uploads and resized images from our storage folders, so your content is not kept longer than necessary.