Pixel-Perfect Resizing

Resize Image by Pixel

Resize any photo to exact pixel dimensions with an aspect-ratio lock. Perfect for social media, forms and ID photos.

Exact Pixels Aspect Lock High Quality

Drop your image here

or click to browse — JPG, PNG, WEBP

Max 25 MB · 100% private

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Why WikisAI

Pixel-Perfect Resizing, Right in Your Browser

Exact PixelsEnter any width & height up to 10,000 px.
High QualityBicubic interpolation keeps images sharp.
100% PrivateNothing is uploaded — all local.
Free ForeverNo signup, no watermark.

Frequently Asked Questions

Common questions about resizing images by pixel.

What does "lock aspect ratio" do?
It keeps the original width-to-height ratio so your image never looks stretched. When you change the width, the height updates automatically (and vice versa).
What's the maximum size I can resize to?
Up to 10,000 × 10,000 pixels. Going much larger than the original may reduce sharpness, so use our Upscale tool for better results.
Are my images uploaded?
No. Everything is processed inside your browser using HTML5 Canvas.

Need a specific KB size?

Try our target-size compressor to hit 20 KB, 50 KB, 100 KB or any exact value.

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