Image Resizer
Resize images to custom dimensions right in your browser.
Select an image to begin.
Processing happens in your browser. Files are not sent to our server. Animated images are not supported; transparent areas become white in JPG output. PNG export may result in a larger file.
Get the Right Image Size Without Complicated Editing
You’ve found the right photo for your website, product listing or presentation. There’s just one problem: the dimensions don’t fit.
With the CAPS Image Resizer, you can change an image’s width and height in pixels without opening complicated editing software. Enter your preferred dimensions, keep the original proportions if needed, and download the result.
The tool supports JPG, PNG and WebP images and handles image processing in your browser. You can preview the resized image before saving it to your device.
How to Resize an Image Online
Select Your Image
Drag and drop an image into the upload box, or choose a JPG, PNG or WebP file from your device.
Enter the New Dimensions
Set the width or height you want in pixels. Keep the aspect-ratio option enabled if you want the other dimension to adjust proportionally.
Preview and Download
Click Resize Image, review the processed preview and download the image in your chosen output format.
What Do Image Width and Height Mean?
Digital image dimensions are measured in pixels. When you see an image described as 1200 × 800 px, that means it is 1200 pixels wide and 800 pixels tall.
Changing pixel dimensions changes the amount of image detail available. Making an image smaller removes pixel information, while enlarging it cannot recreate detail that wasn’t present in the original file.
Commonly used for wide banners, thumbnails and horizontal website graphics.
Example: 1600 × 900 pxOften used for online store product images, profile pictures and square social graphics.
Example: 1000 × 1000 pxWhy Keeping the Aspect Ratio Matters
Aspect ratio describes the relationship between an image’s width and height. A square has a 1:1 ratio, while a typical widescreen image uses 16:9.
If you change the width without adjusting the height proportionally, people and objects may look unusually wide or narrow.
That’s why our Image Resizer includes a Keep Aspect Ratio option. With this enabled, changing one dimension automatically adjusts the other to preserve the original proportions.
Example: If your original image is 1200 × 800 pixels, changing the width to 600 pixels with the aspect ratio locked produces a 600 × 400 pixel image.
Common Image Sizes for Everyday Projects
Not every platform uses the same image dimensions. The examples below are useful starting points, not universal upload requirements. Always check the specifications of the website or service where you plan to publish your image.
| Image type | Example dimensions | Typical use |
|---|---|---|
| Square product image | 1000 × 1000 px | E-commerce product photography |
| Landscape banner | 1200 × 628 px | Promotional images and link graphics |
| Square social graphic | 1080 × 1080 px | Square social media content |
| Portrait social graphic | 1080 × 1350 px | Portrait-oriented social posts |
| Widescreen graphic | 1920 × 1080 px | Full HD presentations and visuals |
Tips for Better Image Resizing Results
Start With a Good Original
A clear, high-resolution source generally gives you more flexibility when preparing smaller versions.
Don’t Upscale Unnecessarily
Increasing pixel dimensions doesn’t automatically improve sharpness. Enlarged images can look soft or blurry.
Keep Proportions Consistent
Leave aspect-ratio locking enabled unless you specifically need to change the image’s proportions.
Choose the Right Format
JPG is practical for many photos. PNG supports transparency, while WebP is often useful for modern web graphics.
Image Resizing vs Image Compression
Resizing and compression are related, but they solve different problems.
Resizing changes the pixel dimensions of an image. For example, it can turn a 2400-pixel-wide photograph into an 800-pixel-wide version.
Compression focuses on reducing the file size through encoding choices. You can often compress an image without changing its width or height.
If you’re preparing website photos, resizing overly large dimensions and then choosing suitable compression settings can be an effective combination.
Need to reduce file size? Try our free Image Compressor .
Image Resizer FAQs
Can I resize images online for free?
Yes. CAPS Image Resizer is free to use for the available JPG, PNG and WebP image-resizing features.
Can I resize an image to exact pixels?
Yes. You can enter custom width and height values in pixels. With aspect-ratio locking enabled, the other dimension adjusts to match the original proportions.
Will resizing reduce image quality?
Reducing dimensions removes pixel information. Enlarging a small image can make it look less sharp. The output format and quality setting can also affect the final appearance.
How do I resize without stretching?
Keep the aspect-ratio option checked. This helps preserve the original proportions when you change image dimensions.
Do my images get uploaded to a server?
The current CAPS Image Resizer processes supported image files within your browser. Images don’t need to be uploaded to our server for resizing.
Can I resize an image on my phone?
Yes. The interface is designed for both mobile and desktop browsers. Very large images may use significant device memory.
Is resizing the same as cropping?
No. Resizing changes an image’s dimensions. Cropping removes parts of an image to change its visible composition or framing.
Other Image Tools You May Find Useful
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