JPG to WebP Converter
Convert JPG images to smaller WebP files entirely in your browser — adjustable quality, unlimited batch conversion and one-click ZIP download. Nothing is ever uploaded.
Drop JPG images to convert
or click to choose · drag a whole folder
- 100% in your browser
- No upload, no signup
- Smaller files
- Adjustable quality
Why Convert JPG to WebP?
If you run a website, a blog, or an online store, your JPG photos are probably the heaviest thing on every page. Converting JPG to WebP shrinks those images by roughly 25 to 34 percent at the same visual quality, so pages load faster, visitors stay longer, and your Core Web Vitals scores improve — all without the eye being able to tell the difference.
WebP is Google's modern image format, and it's now supported by every major browser. Serving WebP instead of JPG means less bandwidth, quicker first paint on mobile, and a lighter load for anyone on a slow connection. Search engines reward faster pages, which is why switching to WebP to JPG conversion is one of the simplest performance wins available.
This tool does the JPG to WebP conversion in seconds, right in your browser. There's no upload, no queue, and no limit on how many photos you can convert at once — drop a single hero image or an entire product folder.
JPG vs WebP: What's the Difference?
JPG is the decades-old photo format that every device and app understands. WebP is Google's newer format that compresses the same image far more efficiently — typically 25 to 34 percent smaller than JPG at matching quality — which is why modern websites prefer it.
Both JPG and WebP are lossy formats, meaning they discard some data to stay small. The difference is how cleverly they do it: WebP's compression is more advanced, so it reaches a smaller file at the same quality, or higher quality at the same size. For web delivery, that efficiency is the whole point.
JPG still wins on universal reach — it opens literally everywhere — but for images you're publishing online, WebP is the better target. Converting JPG to WebP keeps your photos looking identical while making every page noticeably lighter.
How to Convert JPG to WebP in 3 Steps
There's nothing to install and no account to create. Here's how to convert JPG to WebP from any device with a modern browser.
Add your JPG files
Drag your photos — or a whole folder — onto the box above, or click to browse. Everything stays on your device; nothing is uploaded to a server.
Pick a quality level
Use the slider to balance size against detail. 80 is an excellent default for web photos; raise it for hero images, lower it to squeeze every kilobyte.
Convert and download
Each JPG is re-encoded as WebP right in your browser. Download files one by one or grab them all as a ZIP, and see the size saved on each.
Pro tip: Need a transparent background instead of a photo? Start from a PNG with our PNG to WebP tool.
Smaller Files at the Same Quality
The reason to convert JPG to WebP is simple: smaller files that look the same. At quality 80, a typical web photo drops by a quarter to a third of its size with no visible loss, and the tool shows you the exact bytes saved on every image so you can see the win.
Because the slider gives you full control, you decide the trade-off. Leave it high for photography portfolios where detail matters, or push it lower for thumbnails and backgrounds where speed wins. Either way, the conversion happens instantly in your browser with no quality cap imposed by a server.
WebP is the right target for:
- Website images
- Blog photos
- Product galleries
- Email assets
- App backgrounds
JPG to WebP on Windows, Mac & in Bulk
The same browser tool works everywhere. Here's what it handles in each case.
On Windows 10 & 11
No Photoshop and no plugin needed — the browser converts JPG to WebP on Windows directly, so you can optimise images straight from File Explorer.
On Mac
Skip Preview's one-file export. Drop a whole folder of JPGs here for a batch WebP conversion and download every result in a single ZIP.
For whole sites
Optimising a WordPress library or a product catalogue? Add hundreds of JPGs at once — there's no server, so there's no batch cap and no waiting in a queue.
Your Images Never Leave Your Device
Most JPG to WebP converters in the top results upload your files to a server, then promise to delete them later. This tool removes the need for that promise: your images are converted by your own browser's canvas, so nothing is ever transmitted.
Because nothing is uploaded, there's no size cap, no queue, and no account to create — and the tool keeps working even if your connection drops after the page loads.
On-device only
Conversion happens in your browser. No image is ever sent to us or anyone else.
No limits
No file-size cap and no batch limit, because there's no server doing the work.
Nothing stored
We can't keep what we never receive. Close the tab and every trace is gone.
Frequently Asked Questions
Is this JPG to WebP converter free?⌄
Do my images get uploaded anywhere?⌄
How much smaller will the WebP be?⌄
Will I lose quality converting JPG to WebP?⌄
Do all browsers support WebP now?⌄
Can I batch convert many JPG files to WebP?⌄
Can I just rename .jpg to .webp?⌄
What if I need transparency?⌄
Ready to convert your JPG images?
Drop your files into the converter — smaller, private, and with no limits.
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