What Is WebP and Why Should You Use It?

WebP is a modern image format developed by Google. It produces image files that are 25 to 35 percent smaller than JPEG and up to 26 percent smaller than PNG at the same visual quality. For anyone running a website or blog, this directly improves page load speed and Google search rankings.

If Google PageSpeed Insights has shown you the warning "Serve images in next-gen formats" or "Properly size images", converting your images to WebP is the fastest fix available. This tool does it entirely inside your browser — nothing is uploaded anywhere.

WebP vs JPEG vs PNG: Which Format to Use?

How to Use This Image Converter

Step 1: Drop one or more images into the upload area, or click to browse your files. Supported inputs are JPG, JPEG, PNG, GIF, and BMP.

Step 2: Select your output format. Choose WebP for the best compression for websites. Choose JPEG for maximum compatibility. Choose PNG when you need a transparent background.

Step 3: Optionally set a max width to resize images. The tool maintains aspect ratio automatically.

Step 4: Set the quality level using the slider. A setting of 80 percent is recommended for most blog images.

Step 5: Click Convert. Each file shows original vs new dimensions and file size savings. Download individually or all at once.

What Quality Setting Should You Use?

85–90% — Hero images and featured images where quality is the priority. Still smaller than the original JPEG.

75–80% — Recommended for most blog post images. Typically 30 to 50 percent smaller than the original with no visible quality difference.

60–70% — Thumbnails and preview images displayed at small sizes.

Why Google PageSpeed Flags Your Images

Google PageSpeed Insights checks your site against Core Web Vitals standards. Large images slow down your Largest Contentful Paint (LCP) score, which Google uses as a direct ranking signal. Converting images to WebP and re-uploading them is one of the highest-impact changes you can make for both speed and SEO.