Image Resizer
Resize images to custom dimensions with aspect ratio lock. Upload JPEG, PNG, or WebP and download as PNG or JPEG.
Click to upload or drag and drop
JPEG, PNG, or WebP
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Original Width
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Original Height
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Aspect Ratio
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File Size
Resized Preview
Frequently Asked Questions
How do I resize an image online for free?▾
Upload your JPEG, PNG, or WebP image, set the desired width and height in pixels, then click "Resize Image". Download the result as PNG or JPEG instantly.
Can I maintain the aspect ratio when resizing?▾
Yes. The aspect ratio is locked by default so changing the width automatically adjusts the height proportionally. Click the lock icon to unlock and set dimensions independently.
What image formats are supported?▾
You can upload JPEG, PNG, and WebP images. The resized output can be downloaded as either PNG or JPEG with adjustable quality.
Is my image data sent to a server?▾
No. All resizing happens entirely in your browser using the Canvas API. Your images are never uploaded or transmitted anywhere.