Resize Image Online
Change your image width and height in pixels or scale by percentage. Lock aspect ratio for proportional resizing.
Drag & Drop Image Here
No File Size Limits — 100% Free & Private
Resizing Controls
Proportional Scaling & Dimension Adjustments
When you resize an image, modifying both width and height independently can stretch or distort the visual aspects. That's why our tool defaults to locking the aspect ratio. When locked, editing the width will calculate the correct mathematical height proportionally based on the original dimensions.
Image Scaling Algorithms
The resizing logic utilizes high-quality canvas bilinear filtering. For downscaling, this guarantees sharp text outlines and detailed textures. For upscaling, canvas smoothing is enabled by default to prevent blocky, pixelated outputs.
Why Resize Locally?
- Zero Upload Time: Scaling is processed instantly, even on massive 40-megapixel DSLR camera images.
- Uncompromised Security: Corporate spreadsheets, identity documents, and personal photos remain locally enclosed within your browser sandbox.