JPG to WebP Converter
Turn a JPG into a smaller WebP for the web. Same picture, noticeably lighter page. Converted in your browser, never uploaded.
Drop a JPG file here
Up to 4.0 MB per file. Converted in your browser, never uploaded.
Free JPG to WebP
Converter, Online
WebP is the easiest page-speed win most sites have left. Google's comparisons put it 25 to 34% below JPG at matching quality, and every current browser renders it. Drop a JPG in and get a lighter file for your site.
Tools that pair well with this one
All free, all in your browser, no signup.
How to convert JPG to WebP
Three steps, no account, and a 4.0 MB ceiling per file.
Add your JPG
Drag it in or pick it from your device. Only JPG files are accepted here.
Hit Convert
WebP is preselected. Open the settings first if you want to change the quality.
Download the WebP
The converted file is ready straight away. Save it and carry on.
The short version
Why convert JPG to WebP?
If the image is going on a website, this conversion pays for itself in load time.
Images are the heaviest thing on most pages, which makes them the thing that decides your Largest Contentful Paint score. Shaving a third off every photo is a change you make once and feel on every page view, on every visit, forever.
- Core Web Vitals: LCP is usually an image. A lighter hero image moves the number that Google actually measures.
- Mobile visitors on real connections: The saving is invisible on your desk and very visible on a phone with two bars.
- Bandwidth bills: A third less image weight is a third less egress, which matters once traffic is real.
Worth knowing: WebP is for publishing, not archiving. Keep your original JPG. And do not send a .webp to a client or a print shop, because plenty of desktop software still refuses to open one.
Joint Photographic Experts Group
What is a JPG?
JPG is the format your camera, your phone, and most of the internet reach for when the picture is a photograph. It throws away detail your eye is bad at noticing and keeps the file small in return.
That trade is the whole point. A 12 megapixel photo would be roughly 36 MB with nothing thrown away. As a JPG it lands somewhere near 3 MB and still looks like the photo you took, which is why it has survived since 1992 while flashier formats came and went.
The catch is that the throwing away happens every single time you save. Edit a JPG, save, edit again, save again, and you are compressing an already compressed image. It shows up first as blocky halos around hard edges and text, which is also why JPG is a poor home for screenshots, logos, and anything with flat color.
JPG also has no transparency. There is no alpha channel in the format at all, so a transparent background becomes a solid one the moment you save.
Best for: Photographs, camera output, and anything headed for an upload form with a size limit.
Web Picture format
What is a WebP?
WebP is Google's attempt to stop making people choose. It has a lossy mode like JPG, a lossless mode like PNG, and transparency in both, all in one file type.
Google's own comparisons put lossy WebP at roughly 25 to 34% smaller than a JPG of comparable quality, and lossless WebP at about 26% smaller than PNG. On an image-heavy page that is the difference between a fast Largest Contentful Paint score and a slow one.
Browser support stopped being an argument years ago. Chrome, Edge, Firefox, Opera, and Safari from version 14 onward all render WebP, which covers effectively everyone who will visit your site.
Where it still trips people up is off the web. Plenty of desktop software, older photo tools, print workflows, and a few upload forms will refuse a .webp file outright, which is the usual reason someone needs to convert one back.
Best for: Images you are publishing on a website, where page weight is the thing you are optimizing.
Other JPG and WebP converters
Same tool, same privacy, different formats. Pick the conversion you need next.
Everything the JPG to WebP conversion needs, nothing it does not.
One file, two dropdowns, one button. The rest is your browser doing the work.
Converts in a blink
Your browser decodes and re-encodes the file locally, so a JPG becomes a WebP in about as long as it takes to read this.
Never leaves your device
No upload, no server, no copy of your image sitting in someone's bucket. Close the tab and it is gone.
You pick the quality
Default is 75%, which keeps files small. Push it to 100% when the detail matters more than the size.
Room for transparency
JPG has no alpha channel and WebP does, so once it is converted you can cut out the background and it will stay cut out.
No install, no signup
It is a web page. Nothing to download, no account to make, no watermark on the way out.
Works on your phone
Same tool, same speed on mobile. Convert a screenshot on the train and download it straight to your camera roll.
JPG to WebP: common questions
What people ask before converting JPG files to WebP.
Drop your JPG file into the converter at the top of this page, or click the button to pick one. WebP is already selected as the output, so you can hit Convert straight away.
When it finishes, the download button appears with the converted file. There is no queue, no email step, and no account.
Yes, for any browser someone is realistically using. Chrome, Edge, Firefox, and Opera have supported WebP for years, and Safari joined at version 14 in 2020. Browser support has not been a real objection since then.
Software outside the browser is a different story. Some desktop editors and print workflows still will not open a WebP, which is why people convert them back.
Google's own study puts lossy WebP 25 to 34% below JPG at equivalent quality. In practice it depends on the picture: busy, detailed photographs save less, and images with large smooth areas like skies or studio backgrounds save more.
75% is the right starting point for photographs on a website, and it is what this tool defaults to. Push it to 90% for hero images and product shots where detail is the point. 100% switches your browser's encoder into lossless mode, which is excellent for graphics and overkill for photos.
No. The conversion runs inside your browser using the canvas your browser already ships with. Your file is read from your own device, converted in memory, and handed back to you.
Nothing is transmitted, which means nothing can be stored, logged, or leaked. It also means the tool keeps working if your connection drops halfway through.
4.0 MB per file. Above that, converting in the browser gets memory-hungry enough to crash the tab on a mid-range phone, so the tool declines the file rather than gambling with it.
If your image is larger, compress or resize it first and then convert it here.
Yes. The gear icon next to the Convert button opens the quality control, which starts at 75%. That is the setting where files stay small and the difference stays invisible on a photograph.
Set it to 100% and your browser encodes WebP losslessly, which is what you want for logos, screenshots, and anything with text.
Yes. No signup, no watermark, no daily limit, and no ads on the page. Since the work happens on your device, converting an image costs us nothing to run, so there is nothing to charge you for.
Ready to convert your JPG?
Drop it in, pick WebP, download. No account, nothing uploaded.