WebP format is a modern image file type developed by Google that helps make your website faster by reducing image file sizes without losing much visual quality. It supports both lossy and lossless compression and can even handle transparency (like PNGs) and animation (like GIFs). Since images are one of the biggest contributors to slow-loading websites, using WebP can be a smart move toward faster performance.

This format was designed with the web in mind. Compared to older formats like JPEG and PNG, WebP tends to produce smaller file sizes while maintaining great-looking visuals. This means your pages load quicker and your visitors stick around longer. For business owners or creatives using a platform like B12’s AI website builder, choosing WebP images can improve user experience and help with SEO.

Why WebP format is important for your website

Today’s websites are expected to be fast, responsive, and mobile-friendly. One way to help achieve that is by using modern, efficient media formats like WebP. Since large image files slow down page speed, switching to WebP can immediately make a noticeable difference—especially for image-heavy websites such as portfolios, product galleries, or blogs.

Most modern browsers support WebP, and tools like B12 make it easy to upload and optimize your image content during the website creation process. Whether you're creating landing pages, drafting email newsletters with B12 AI Assist, or scheduling consultations using online scheduling, loading times matter—and so does image efficiency.

Benefits of using WebP format

Smaller file sizes

WebP typically compresses images 25–35% more efficiently than JPEG or PNG. That means faster loading speeds without sacrificing visual quality.

Support for transparency and animation

Like PNGs and GIFs, WebP handles transparency and motion. But unlike those formats, it usually results in a much smaller file size.

Improved SEO and user experience

Google considers page speed when ranking pages. Using WebP can help improve load times, which can have a positive impact on your SEO rankings and keep visitors on your page longer.

Easier content creation

With the help of tools like B12 AI Assist, creating engaging content and images that work well with WebP becomes easier and more efficient.

Mobile performance gains

Since mobile users often rely on slower networks, WebP images help ensure a smoother experience across all devices.

FAQs about WebP format

What happens if a browser doesn’t support WebP?

Most modern browsers support WebP, but for those that don’t, many website builders offer fallback image formats so your site still looks good.

Is WebP better than JPEG for every use case?

WebP is generally better for websites, but JPEG can still be preferred for offline use or in tools that don’t yet support WebP.

Can I convert my current images to WebP?

Yes! There are free online converters, and many website builders automatically convert your images to WebP when you upload them.

Do WebP images load faster on mobile?

Absolutely. Their smaller size helps reduce load time, which is especially useful for mobile visitors.

Can I use WebP for email marketing?

It depends on the platform. Some email tools support WebP, but others may not, so it's always good to test or provide alternate image formats. For fully supported visuals, check your email marketing provider’s image format guidelines.

What to keep in mind as you explore WebP

WebP format might seem like just another image file type, but it can have a big impact on how quickly and efficiently your site runs. If you’re using a visual-first site, or want to impress users with a faster experience, WebP is a smart choice. It helps you strike a balance between quality and performance, and tools like the B12 AI website builder make adopting it seamless. Whether you're revamping your homepage or working on stronger client engagement, the format of your images plays a bigger role than you might think.

Want to try building a site with image optimization already built in? Get started with B12 today and see the difference for yourself.