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Image Resizer

Resize images online for free. Change width and height of PNG, JPEG and WebP images. Maintain aspect ratio or set custom dimensions.

Drag and drop an image, or click to select

Accepts PNG, JPEG, and WebP files

About Image Resizing

Image resizing changes the dimensions of an image while preserving (or adjusting) the aspect ratio. This tool uses the Canvas API with high-quality resampling to resize images entirely in your browser. No files are uploaded to any server. You can choose the output format (PNG, JPEG, or WebP) and adjust quality for lossy formats. Common use cases include preparing images for social media, email, web pages, or reducing file size for faster loading.

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How to Resize Images for the Web: Dimensions, Formats and Best Practices

Learn how to resize images for the web. Covers common dimensions, aspect ratio preservation, output formats (PNG, JPEG, WebP), quality settings, the Canvas API and responsive images with srcset.

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