JPG to WebP Converter

What is the jpg to webp converter?

This tool converts JPG (JPEG) images into WebP, a modern image format designed for the web. WebP's advantage is size: at the same visual quality it typically produces files 25–35% smaller than JPG, which means faster page loads, less bandwidth and better Core Web Vitals scores. Every current browser — Chrome, Edge, Firefox, Safari — displays WebP, so for websites and web apps it's usually the better choice. This page is aimed at that use case: take the JPGs you'd normally put on a site and turn them into lighter WebP versions. It runs entirely in your browser using the canvas engine, so nothing is uploaded, and you can convert a single image or a whole folder's worth and download them together as a ZIP.

How it works

Add your JPG files, set the quality slider (WebP is lossy, so this balances size against fidelity — around 80% is a good default for photos), and convert. Each JPG is decoded and re-encoded as WebP, and the before/after readout shows how many kilobytes you saved on each file. There's an optional resize step to cap the largest dimension at the same time, which is handy for turning big camera JPGs into right-sized web images in one pass. Batches show a progress bar and can be downloaded as a single ZIP.

Worked example

You're optimising a blog and have twenty article photos as JPGs totalling 18 MB. You add them all, set quality to 80%, optionally cap the width at 1600px, and convert. Each image drops by roughly a third (many more when resized), the total falls to a few megabytes, and you download a ZIP of web-ready WebP files that make the pages load noticeably faster — with no visible quality loss.