Quick answer
Large images slow down Largest Contentful Paint and frustrate mobile visitors. Compressing images before upload can reduce bandwidth, improve crawl efficiency, and make landing pages feel faster without redesigning the whole website.
Use the right free tool
Pick the converter below based on your goal. Each tool includes privacy notes, steps, FAQs, and related guides.
Best practice
Keep your original file, create the converted copy, then compare quality and file size before publishing or sending. This keeps your workflow safe while improving compatibility and speed.