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SEO image pack generator

Turn one image into a fast, search-friendly set: responsive sizes in WebP, AVIF and JPG, keyword file names, alt text, and ready-to-paste HTML with srcset and lazy loading.

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How do I optimize images for SEO?

Search engines and page speed tools reward images that are the right size, in a modern format, with descriptive file names and alt text. The best practice is to save each image in several widths as WebP (or AVIF) with a JPG fallback, and let the browser pick with srcset and sizes. Adding width and height prevents layout shift, and lazy loading speeds up the first view.

This generator does all of it from one image. Give it a keyword and alt text, pick widths and formats, and you get the files plus HTML you can paste straight into your page, along with an Open Graph image and ImageObject structured data. Everything happens in your browser, so your images are never uploaded.

How it works

  1. Add an image

    Use the largest, best-quality version you have.

  2. Add a keyword and alt text

    The keyword becomes the file name, like red-running-shoes-1280w.webp.

  3. Download files and HTML

    Upload the images and paste the <picture> code into your page.

Guide

Questions

Do image file names matter for SEO?

Yes. Google uses file names as a small signal of what an image shows. Short, descriptive names with words separated by hyphens work best, like red-running-shoes.webp rather than IMG_4032.jpg.

What is srcset?

An HTML attribute that lists the same image in several widths. The browser downloads the smallest one that looks sharp on the visitor's screen, which saves data and speeds up pages.

Should I use WebP or AVIF?

WebP works in every current browser and is usually 25–35% smaller than JPG. AVIF is smaller still. Using both with a JPG fallback, as this tool does, gives every visitor the best option.

How do I write good alt text?

Describe what the image shows and why it matters on the page, in a short sentence. Include a keyword only if it fits naturally. Don't start with "image of".

Why are width and height included?

They let the browser reserve space before the image loads, which prevents the page from jumping. That improves Cumulative Layout Shift, one of Google's Core Web Vitals.