Convert to WebP

Convert to WebP is a free browser-based tool that helps you convert images to modern webp format — 30-40% smaller than jpg with comparable quality. It is part of ToolsMonk's image tools collection, so you can finish the job without downloading software, creating an account, or jumping between multiple websites.

This tool is especially useful for workflows such as optimising website images for faster loading and better core web vitals, shrinking large jpgs and pngs while keeping them sharp, and serving smaller images to improve mobile performance. Because it runs directly in your browser, you can use it on desktop, tablet, or mobile while keeping the process fast and easy for one-off tasks as well as repeat work.

Convert to WebP is also a strong fit for people searching for convert to webp, webp converter, and web optimization, because it combines a simple interface with instant results and privacy-friendly processing.

Convert to WebP turns JPG, PNG, and other images into WebP — the modern web format that delivers files typically 25–35% smaller than JPG at the same quality, while still supporting transparency. It's one of the highest-impact things you can do for page speed.

Smaller images load faster, lift Core Web Vitals scores, and cut bandwidth, which is why WebP has become a performance standard. A quality slider with an instant before/after size comparison lets you find the point where the file shrinks but the image still looks sharp — around 75–80% suits most photos.

Conversion runs in your browser via the Canvas API, so your images are never uploaded, with no watermark or limit. Transparency from PNGs is preserved, so logos and cut-outs convert cleanly.

WebP is supported by every current browser, though a little older software still isn't — if you hit that, the WebP to PNG and WebP to JPG tools convert back. For the biggest win, resize an image to its real display size first, then convert to WebP.