How to Change Image Size in HTML: Methods, Attributes, and Best Practices

Controlling image size in HTML is one of the most fundamental skills in web development. Whether you're building a personal site, a professional portfolio, or a full web app, knowing how to resize images correctly affects both how your page looks and how fast it loads. There's more than one way to do it — and the method you choose matters.

The Two Core Approaches: HTML Attributes vs. CSS

HTML gives you two main tools for controlling image dimensions: inline HTML attributes and CSS styling. They can produce similar visual results, but they work differently and carry different implications for maintainability and performance.

Using Width and Height Attributes Directly in HTML

The most straightforward method is adding width and height attributes directly to the <img> tag: