Set Resize Percentage
Resize Image by Percentage Online
Resize JPG, PNG, and WebP images by percentage. Choose 25%, 50%, 75%, 100%, or a custom scale, preview the new dimensions, and download one resized image or a full ZIP batch privately in your browser.
How to Resize Image by Percentage
Upload images
Choose one image or add a batch of JPG, PNG, or WebP files.
Choose a percentage
Pick 25%, 50%, 75%, 100%, or enter a custom percentage.
Select output format
Export the resized images as JPG, PNG, or WebP.
Download resized files
Preview the output, download one image, or save the full batch as a ZIP.
Why This Percentage Resizer Is Different
Simple percentage scaling
Reduce an image to a smaller relative size without calculating pixel dimensions manually.
Keeps image proportions
The output keeps the same aspect ratio, so photos and documents do not stretch.
Batch resize images
Resize up to 20 images with the same percentage and download the results in one ZIP.
Before and after preview
Compare the original and resized image before saving the final file.
Private browser processing
Image resizing runs locally in your browser during normal use.
Resize Images to 25%, 50%, or 75%
Use this tool when you want to shrink an image by a simple percentage instead of entering exact pixel dimensions. A 50% resize makes the image half as wide and half as tall while keeping the same shape.
Scale Width and Height Together
Percentage resizing applies the same scale to width and height, so portraits, products, screenshots, and documents keep their original proportions. This is useful for quick downsizing without stretching the image.
Resize JPG, PNG, and WebP Images
Upload common image formats and export the resized version as JPG, PNG, or WebP. Choose JPG for photos, PNG for graphics or screenshots that need sharp edges, and WebP for smaller web-ready images.
Need Exact Pixels or KB Instead?
Use Resize Image Dimensions when a website asks for exact width and height. Use Image Compressor when the upload rule is a file-size limit like 100KB or 200KB.
Private Image Percentage Resizing
Image decoding, percentage scaling, preview, and ZIP creation happen locally in your browser during normal processing. Your images are not uploaded to our server.
Tested for browser percentage resizing
We test 25%, 50%, 75%, custom percentages, JPG, PNG, and WebP output, before-and-after previews, individual downloads, and ZIP creation. Built and tested by Mozammel Hoshen Chowdhury. Review process: Editorial Policy.
Frequently Asked Questions
How do I resize an image by percentage?
Upload an image, choose a percentage such as 25%, 50%, or 75%, then resize and download the output. You can also enter a custom percentage.
Can I resize an image to 50 percent?
Yes. Choose the 50% preset to make the image half its original width and half its original height while keeping the same aspect ratio.
Does percentage resizing keep aspect ratio?
Yes. Width and height are scaled by the same percentage, so the resized image keeps the original shape.
Can I make an image larger by percentage?
Yes. Enter a custom percentage above 100% to scale the image up. Very large enlargements can look softer because new pixels must be generated by the browser.
Which formats are supported?
You can upload JPG, PNG, and WebP images. Downloads can be exported as JPG, PNG, or WebP.
Are my images uploaded to a server?
No. Normal resizing, preview, and download generation happen in your browser. Your images are not uploaded to our server.