Resize Image Online
100% FreeResize JPG, PNG, or WebP images by exact pixels or percentage. Lock the aspect ratio, preview the new dimensions, and download without uploading.
Upload Image
Image selected
Image details
Ready in your browser
Your images are safe
Your browser reads and resizes the image on this device. The file is not sent to our server.
Resize Settings
Dimensions (px)
Quick scale
Upload an image to calculate the output dimensions.
Common canvas sizes (Optional)
Canvas presets may change the image aspect ratio.
Output options (Auto)
Quality affects JPG and WebP output. Higher quality usually means a larger file.
Upload an image to begin.
Preview & Download
Your preview will appear here
Choose a JPG, PNG, or WebP image. It stays in your browser.
Original
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Resized
Choose settings, then click Resize Image.
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Success! Your image has been resized.
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- Output Format
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- Dimensions
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- File Size
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- Quality
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Pixels or Percentage
Enter an exact width and height or scale the original image by percentage.
Quality Control
Adjust JPG and WebP quality before you download.
Keeps Aspect Ratio
Keep the original proportions or set a custom canvas.
Multiple Formats
Export your image as JPG, PNG, or WebP.
No File Upload
Your browser resizes the image locally on this device.
Phone or Computer
Use the same image resizer on mobile and desktop browsers.
Popular Dimensions
Frequently Asked Questions
What is the best image size for the web?
There is no single best size. Use the dimensions required by the page or platform, and avoid exporting an image much larger than it will appear on screen.
Can I resize an image without losing quality?
Reducing pixel dimensions usually keeps an image sharp. Enlarging cannot create missing detail, so large increases may look soft. Keep quality high and avoid enlarging more than necessary.
What is the difference between pixels and percentage?
Pixels give you an exact width and height. Percentage scales the current image proportionally, so 50% makes each side half as long.
How do I resize an image to an exact width and height?
Choose Pixels, enter the required width and height, and keep Lock Aspect Ratio on if you do not want the image stretched. Turn it off only when the form requires exact dimensions.
Is my image uploaded to your server?
No. Your browser reads and resizes the image on this device. The file is not sent to our server.