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Resize Image

Resize images to exact dimensions in pixels, centimeters, or millimeters. Set custom size, choose output format, set target file size. Free, private, browser-based.

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Drop image here or click to upload
JPG, PNG, WebP, BMP, GIF · Max 20 MB
Resize To
px
px

Quick Presets
Output Format
Target Size (optional)

🔒 All processing happens in your browser. Images never leave your device.
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Frequently Asked Questions

How do I resize an image to exact dimensions?

Upload your image, enter the desired width and height in pixels, cm, or mm, then click Resize. The image is scaled to your exact dimensions.

What's the aspect ratio lock?

When locked (default), changing width auto-calculates height to maintain the original proportions. Click the lock icon to unlock and set width/height independently.

How do cm and mm work?

When you choose CM or MM, the tool converts your dimensions to pixels using the selected DPI (dots per inch). 300 DPI is standard for printing.

Can I set a target file size?

Yes. Enter a target size in KB or MB. The tool first resizes to your dimensions, then compresses to hit the target size with 99%+ accuracy.

Are my images uploaded to a server?

No. Everything runs in your browser. Your images never leave your device.

Process Images & PDFs
100% In Your Browser

Privacy-first tools that never upload your files. Fast, secure, and completely free for basic use.

🔒 No file uploads
💻 100% client-side
📴 Works offline
🛡️ No tracking