JPEG has compressed photographs with lossy DCT math since 1992, and it's showing its age: WebP's VP8-derived encoder squeezes the same photo into roughly 25–35% fewer bytes at equivalent visual quality, which is why it's become the default photo format for performance-conscious websites. This converter re-encodes your JPEGs as WebP entirely in your browser — handy for prepping site assets without installing anything or handing images to a third party.
Drop your file here or click to browse
.jpg, .jpeg — up to 200 MB. Processed locally; never uploaded.
Expect 25–35% savings at matched visual quality, per Google's published benchmarks. On a page with several large photos, that's often the single easiest performance win available.
For practical purposes, yes: Chrome, Firefox, Edge, and Safari (14 and later) all render WebP, covering over 96% of global traffic. Only genuinely ancient browsers miss out.
At 85% quality, side-by-side differences are essentially invisible for photographs. Both formats are lossy, so there is one generation of recompression — avoid converting the same file repeatedly.
No. Encoding runs in a Web Worker in your browser; the photo's bytes never reach the network. You can confirm this in the developer tools network panel.