or, drop Images here

What is ImageResize.org?

Imageresize.org is a simple online image resizer. This tool allows you to resize your photos to an exact dimension in pixels or as a percentage of your original photo. To start, simply upload an image using the upload box above. We currently support the following image editing functions: Image resize, crop, rotate, and flip.

Resize Image

Simply upload an image to our image resizer and specify exact pixel dimensions you want to resize your image to. You can also resize images to a percentage of the original size. This resize tool is useful if you want to use your images in forums, blogs, social media or profile photos. You can resize images in following units pixels, inches, cm, or mm.

Crop Image

ImageResize.org also allows you to crop images. When cropping a photo, you can choose to keep the original aspect ratio by locking aspect ratio. Alternatively, you can select different aspect ratios such as 1:1 or 16:9 for your crop. You can also flip images (horizontally or vertically) or rotate them.

Reduce Image Size

Our image resizer allows you to limit image file size in Kb or Mb. Simply select “Custom File Size” option under “Optimize” settings. Then enter your target file size in Kilobytes or Megabytes. This feature is useful if you are emailing your photos or if you have some file size restrictions when uploading images (blogs, forums). While our image resizer allows basic optimizations, you may want to use our advanced image compressor for png and jpg compressions.

Change Aspect Ratio

When resizing images, you can choose to keep original aspect ratio or change it as you wish. Note: changing an image’s aspect ratio may distort (stretch) the image. If you wish to change the aspect ratio without stretching the image, you may wish to use our “background color fill” option. If this option is selected, we will resize your image and fill it with your choice of background color to avoid stretching.

Simple and Fast

ImageResize.org is hosted in a scalable cloud computing environment. As a result, we can quickly resize images regardless of server load. This means you do not have to wait for a queue. This image resizer is simple and intuitive to use with live resize calculations for your final image size.

Free & Secure

This tool is free and always will be. We automatically delete your image files after 24 hours from our servers for security and privacy reasons (unless you choose to host the image with us). Other benefits: super fast, easy to use, and mobile-friendly.


Question: How to resize an image in pixels?

Step 1: Upload your image
Step 2: Select "Custom Size" from the drop-down box in "Resize your Image" section
Step 3: Enter a new custom size for the image in pixels

Question: How to reduce image size in kb?

Step 1: Upload your image
Step 2: Select "Custom File Size" from the "Quality and Format" section
Enter a new target file size for your images in Kb or Mb

Question: How to crop a photo?

Step 1: Upload your photo
Step 2: Click on the "Crop" icon under "Adjust Image" section
Step 3: Optionally, select an aspect ratio or lock the original aspect ratio from the crop tool panel
Step 4: Draw your crop rectangle on top of the image using your mouse
Step 5: Click "Apply" to crop photo

Other Tools

We love creating software tools that are free and highly usable to the general public. If you like using ImageResize, you will also like these free tools from us: mp3 cutter, file converter (pdf to jpgjpg to pdfmp4 to mp3wav to mp3png to jpgpng to pdf, and much more), gif maker.

We hope you enjoy these tools as much as we do making them!