Convert JPG to WebP — smaller files, zero upload
If you are optimizing a website, converting your JPGs to WebP is one of the easiest wins available: WebP typically lands 25–35% smaller than JPEG at comparable visual quality, and every current browser supports it. This tool does the encoding with Google’s WebP codec compiled to WebAssembly — meaning the work happens in your browser, not on a server. That makes it fast for batches (no upload and download round trip), free of file size caps, and private by construction: product photos, client imagery, or anything else you drop here stays on your machine. Pick a quality level, convert, and ship lighter pages.
How it works
- Drop one or many .jpg files below.
- Choose a WebP quality — 75–85 balances size and fidelity for most photos.
- Download the .webp files and check the size savings.
Frequently asked questions
How much smaller will WebP files be?
For photographic content, expect roughly 25–35% savings over an equivalent-quality JPG, though it varies by image and by how heavily the source JPG was compressed. Images that were already squeezed hard will shrink less.
Do all browsers support WebP now?
Yes — Chrome, Firefox, Edge, and Safari (since version 14 in 2020) all display WebP natively. For websites it is a safe default today; the stragglers are older desktop applications, not browsers.
Is quality lost going from JPG to WebP?
Both formats are lossy, so re-encoding introduces some generational loss. At quality 80+ it is rarely perceptible. There is no way to gain quality back from a JPG — the goal here is smaller files at the same visual level.
Are my images uploaded during conversion?
No. Everything runs client-side via WebAssembly. Your files never leave the browser tab, which you can verify by watching the network tab of your developer tools while converting.