Resize Images Online Free
Resize JPG, PNG and WebP images by pixels or percentage. Keep the aspect ratio, choose your output format and create the right image dimensions in a few clicks.
Resize Your Images
Change dimensions without opening complicated editing software.
Drop your images here
Choose JPG, PNG or WebP files from your device
Choose ImagesGet the Right Image Dimensions
Resizing is useful when an image is larger or smaller than the dimensions required by your website, application or design.
Custom Dimensions
Set exact width and height values when you need a specific pixel size.
Keep Proportions
Lock the aspect ratio to reduce the risk of stretching or distorting an image.
Batch Resizing
Process multiple images in one session instead of resizing each file separately.
Web-Ready Images
Create dimensions that are more appropriate for websites and digital content.
When Should You Resize an Image?
The right dimensions depend on where the image will be displayed or uploaded.
Website Images
Resize large photos before adding them to a website when their original camera dimensions are much larger than their displayed size.
Social Media
Create images with dimensions that fit profile, post, thumbnail or cover-image requirements.
Online Forms
Resize photos when a form or application asks for specific image dimensions.
Product Photos
Standardize product images for ecommerce listings, catalogs and online stores.
Blog Images
Prepare featured images, article graphics and thumbnails at practical dimensions.
Profile Pictures
Resize photos for profile images, avatars and other fixed-size image areas.
Resize Images Online Without Losing Control of Your Dimensions
Images are often created at dimensions much larger than they actually need to be. A camera photo may contain thousands of pixels on each side, while the website, application or design where it will be used may display it at a much smaller size. An image resizer helps you create a version that better matches the final destination.
With FreePixelKit, you can resize images online by entering exact pixel dimensions or choosing a percentage. The pixel mode is useful when you know the required width and height, while percentage resizing is convenient when you simply want to make an image smaller or larger relative to its original dimensions.
Resize JPG Images Online
JPG is one of the most common image formats for photographs, product images and everyday pictures. If a JPG is too large for a website, profile, email or upload form, resizing can reduce its pixel dimensions before you use it. When you also need a smaller file size, combine resizing with our JPG compression tool.
Resize PNG Images Without Unnecessary Editing Software
PNG images are commonly used for screenshots, logos, illustrations and graphics. When a PNG is larger than the dimensions required by your design or website, resizing it can create a more practical copy. If the file is also too large in megabytes, you can continue with PNG compression.
Keep the Aspect Ratio When Resizing
Changing width and height independently can stretch or squash an image. That is why an aspect-ratio lock is useful for everyday image resizing. When the lock is enabled, changing one dimension automatically calculates the other dimension based on the original proportions. If you specifically need a different shape, you may want to crop the image instead of forcing it into a new ratio.
Resize Images for Websites
Website images should generally be prepared for the dimensions at which they will actually be displayed. Uploading a huge original photograph when a much smaller version is required can add unnecessary data to your media library and page assets. A practical workflow is to resize the image to a sensible dimension and then compress it when appropriate.
If your goal is specifically to reduce the file size rather than the pixel dimensions, use our Image Compressor. You can also learn more about preparing images through our Image Optimization tools and guides.
Resize Images for Specific KB Requirements
Sometimes an application requires both a particular image dimension and a maximum file size. Resizing can help by reducing the number of pixels that need to be stored. For dedicated file-size requirements, FreePixelKit also provides tools for 50KB, 100KB, 200KB and other common targets.
Keep Your Original Image
It is good practice to keep the original high-resolution image as your master copy. Create resized versions for specific uses rather than permanently replacing the original. This gives you flexibility if you later need a larger version, a different crop or another output size.
More Image Size & Optimization Tools
Use the next tool based on what you need to change about your image.
Image Resizing Tips & Guides
Learn more about image dimensions, compression, formats and practical image workflows.
Image Resizer FAQs
Quick answers about resizing JPG, PNG and WebP images online.
Upload your image, choose whether you want to resize by pixels or percentage, set your dimensions, and click Resize Images. You can then download the resized copy.
Yes. The image resizer supports JPG, PNG and WebP files. You can keep the original format or select a supported output format.
When the aspect ratio is locked, changing the width or height automatically adjusts the other dimension to preserve the original proportions of the image.
Yes. Percentage resizing lets you scale an image relative to its original dimensions. For example, 50% creates an image with half the original width and height.
Reducing dimensions does not automatically mean poor visual quality. Output quality also depends on the source image, format and encoding settings. JPG and WebP quality can be adjusted in the tool.
Yes. You can select multiple supported images and resize them during the same browser session. Processing time depends on image dimensions and your device.
Resize an image when its pixel dimensions are too large or too small. Compress it when the dimensions are suitable but the file size is too large. Sometimes both steps are useful.
For specific file-size requirements, use the dedicated FreePixelKit resize-to-KB tools. The final file size can vary depending on the source image, dimensions and output format.
Resize Your Images in a Few Clicks
Set the dimensions you need, keep the aspect ratio when required and download a practical resized copy of your image.
Resize an Image →