How does image resizer work?

Our image resizer works entirely in your browser using HTML5 Canvas. When you select an image, it is drawn onto a virtual canvas at the new dimensions you specify, and then instantly exported back as a file. No data is uploaded to any servers.

Is there a limit to image size?

You can process images of unlimited size. Because all processing happens locally in your device's memory, extremely large files might cause older devices to slow down.

Is my image data safe?

100% Yes. We have designed this tool specifically for privacy. Your files never leave your computer. There are no backend servers receiving your data, meaning your sensitive images remain completely private.

Which image formats are supported?

We support a wide variety of formats including JPG, PNG, WebP, GIF, BMP, TIFF, AVIF, and SVG. You can easily convert between formats when resizing by changing the Output Format setting.

Resize Image Online

Resize image dimensions in pixels or percentage. Free, secure and works 100% in your browser. No uploads. No tracking.

4000 × 3000

1200 × 900

100% Private Browser Based No File Upload

Drag & drop your image

Upload any photo to instantly resize, compress, and optimize directly in your browser.

JPG, PNG, WebP, AVIF

No Size Limit

🔒 100% Private

Resize Settings

Width

Height

Quick Presets

Standard Ratios

Fit Mode

Keeps entire image visible (may add borders)

Image Quality90%

Output Format

Frequently Asked Questions