Image Resizer
Resize images instantly in your browser - no upload, no server, 100% private.
Drop an image here or click to upload
Supports JPG, PNG, WebP, GIF · Max 20MB
About This Image Resizer
This free online image resizer lets you resize JPG, PNG, and WebP images directly in your browser. Your images are never uploaded to any server, all processing happens locally using the browser Canvas API, keeping your files completely private.
Output Format Guide
JPEG
Best for photographs and complex images. Produces small files but does not support transparency.
PNG
Lossless compression. Ideal for logos, screenshots, and images that need a transparent background.
WebP
Modern format with superior compression. Best choice for web images where file size matters.
Frequently Asked Questions
How do I resize an image?
Upload your image by dragging and dropping or clicking the upload area. Enter your target width or height, toggle the lock icon to preserve the aspect ratio, choose an output format, and click Resize Image.
Is my image uploaded to a server?
No. All processing happens entirely in your browser using the Canvas API. Your image never leaves your device.
What is the maximum file size?
The maximum upload size is 20MB. The maximum output dimension is 8000px in either direction.
Does locking the aspect ratio change my dimensions?
Yes. When the aspect ratio is locked, changing the width automatically updates the height to maintain the original proportions, and vice versa.