JPG to WebP
Convert JPG to WebP in your browser — cut image weight by about a third for faster pages. Set the quality, see the real size saving before you download, and keep the original JPG for apps that still need it.
Drop an image here, or click to browse
Processed locally — nothing is uploaded
How to convert JPG to WebP
Drag a JPG into the box — it opens locally and is never uploaded. JPG has no transparency, so nothing gets lost in the conversion step itself.
Set the quality — 80 is the web sweet spot, the visible difference is close to zero. Then click Convert; the preview updates and a separate download button appears.
The size readout shows the real saving — most photos shrink by about a quarter to a third. Use the WebP on your website; keep the original JPG as the master for printing and apps.
Know-how
Why WebP shrinks the same picture
WebP comes from Google and arrived in 2010, but it took a decade of browser adoption to become the web standard it is today. Under the hood it uses stronger compression than JPG: better prediction of nearby pixels, smarter entropy coding, and a quality dial that reaches further without visible damage. The practical result is consistent — the same photo, at the same visual quality, typically lands 25–35% smaller. For a website that is not a minor detail: images are usually the heaviest bytes on the page, so this one format swap is the cheapest speed win most sites can make.
Smaller images, faster pages
Page speed is measured by Core Web Vitals, and the largest contentful paint — the moment the main image of a page appears — is often held back by one heavy photo. A 1.8 MB JPG becomes roughly 1.1 MB as WebP with no visible change, which on a 4G connection is the difference between a photo that appears instantly and one that crawls in line by line. Speed also feeds rankings: search engines factor loading performance into results, and images are the easiest weight on a page to cut. You cannot buy a faster connection for every visitor, but you can ship a lighter image to all of them.
Quality 80 is the web sweet spot
Your JPG is already compressed, so the dial here is about how much to shave on top. At 80 the file loses another big chunk and the difference is invisible on any screen. At 100 you are mostly adding bytes back for nothing — the saved JPG simply has no detail left that those extra bytes can carry. Below 60 you start to see blocky artifacts around edges and text. One extra note: if the picture is a screenshot, a diagram or anything with crisp text, PNG is the better destination — WebP wins on photographs, not on razor-sharp graphics.
Keep the JPG as the master
A conversion should never delete its source. The WebP copy earns its place on the website: it loads faster and looks identical. But the JPG is what the rest of the world understands — print shops, some office suites, government portals, photo frames and older phones all read JPG without question. The clean workflow is two files with two jobs: the WebP serves your visitors, the JPG serves your archive. If you ever need to edit, re-crop or re-export, you start from the JPG, never from the WebP.
What converting cannot do
A format change rewrites the file, not the picture. It cannot restore detail the JPG already lost when it was first saved, cannot make a blurry photo sharp, and cannot undo heavy compression — a low-quality JPG converted to WebP is still a low-quality picture, just in a smarter wrapper. The tool also keeps the same pixel dimensions; making an image bigger on purpose would only invent pixels that were never captured. The honest job here is exactly one thing: same look, smaller file. Everything else belongs to a different tool.
Frequently asked questions
Is the JPG to WebP converter free?+
Yes, completely free, no sign-up and no upload. The conversion runs in your own browser, so your photos never reach a server.
Will converting lose quality?+
Technically every re-encode is a tiny loss, but your JPG was already compressed when it was saved. Converting at quality 80 adds a loss so small it is invisible on screen. Keep the original JPG and nothing is ever lost for good.
How much smaller will the file get?+
Most photos shrink by 25–35% at the same visual quality — that is the whole point of the format. It varies with the photo: busy detail compresses less, smooth areas more. The size readout next to the result shows the exact number for your image.
Do all browsers support WebP?+
Yes — Chrome, Edge, Firefox and Safari have all shown WebP since around 2020, and today it is the default recommendation for web images. The only places that still refuse it are very old apps and devices that stopped receiving updates. That is why the site keeps the WebP while your archive keeps the JPG.
Should I delete the original JPG?+
No. The WebP is for the website; the JPG is the master. Print shops, some office suites, government forms and older devices still expect JPG, and it is the file you would re-edit in the future. Keep both: the WebP serves visitors, the JPG serves everything else.
Can I convert it back to JPG later?+
Yes, any converter can turn a WebP back into a JPG. The reason to keep the original anyway is that each re-encode adds a tiny new loss — going JPG, then WebP, then JPG again stacks three rounds of compression on the same picture. The original JPG has only been compressed once, which is why it stays the master.