Image Resizer Privacy: All processing runs locally
Resize images to custom dimensions with aspect ratio lock and multiple output formats.
Drag & drop an image here, or click to select a file
Original: — x — px
How It Works
This image resizer uses the HTML5 Canvas API to scale your images to any custom dimension directly in your browser. Simply upload an image, enter the desired width and height, and the tool will create a resized version without any server upload.
The aspect ratio lock button (enabled by default) ensures that when you change either the width or height, the other dimension adjusts automatically to maintain the original proportions. Unlock it to set width and height independently for custom crops or stretches.
You can choose from three output formats: PNG (lossless, supports transparency), JPG (lossy, smaller file sizes for photographs), and WebP (modern format with excellent compression). The format selector lets you pick the best option for your use case.
The canvas rendering uses high-quality bicubic interpolation provided by the browser, ensuring smooth scaling for both upscaling and downscaling operations. All processing happens locally in your browser, maintaining complete privacy for your images.