JPG to WebP Converter
Convert JPG photos to WebP in your browser. Smaller files for faster websites, adjustable quality, batch conversion and ZIP download.
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Your files never leave your device
How to convert JPG to WebP online
This converter turns JPG and JPEG photos into WebP files directly in your browser. WebP keeps the look of your photos while cutting the file size noticeably, which makes it the natural next step for images you publish on a website, an online shop or a blog.
What is a JPG file?
JPG (also written JPEG) is the most widely supported photo format: every browser, phone, camera, printer, email client and editing app opens it. JPG uses lossy compression that throws away fine detail the eye barely notices, which keeps photographs small. JPG has no transparency channel, so any transparent area has to be filled with a solid colour. Each time a JPG is edited and saved again a little more quality is lost, so keep an original if you plan further edits.
Why choose WebP?
WebP is Google's modern web image format, designed to replace both JPG and PNG on websites. Current versions of Chrome, Edge, Firefox, Opera and Safari (14 and later) all display WebP. Some older software, print services, office programs and upload forms still refuse WebP files. WebP is the go-to format for lighter pages and better Core Web Vitals scores.
What changes when you convert JPG to WebP
Both formats are lossy, so the photo is decoded and re-encoded rather than copied bit for bit. At the default quality of 85% most photos lose about a quarter to a third of their weight with no visible difference; product shots with smooth backgrounds often shrink even more. Because a JPG has no transparency, there is nothing to preserve or fill: the WebP stays a normal opaque image with the same width and height, unless you choose to resize it. Camera metadata is dropped, which also saves a few kilobytes.
How to convert JPG to WebP
- Drop your JPG files onto the upload area, click to browse, or paste an image with Ctrl+V. You can add many files at once, up to 80 MB each.
- In Convert to, WebP is already selected; you can switch between JPG, PNG, WebP and AVIF at any time and the preview updates instantly.
- Adjust the Quality slider (default 85%) or switch to Target size and enter a limit in KB; the tool then finds the highest quality that fits.
- If needed, open Resize (exact size, maximum size or percentage) and More options for a DPI value and a file-name pattern.
- Compare the original and the result with the before/after slider, then download each file or click Download all (ZIP).
Tips for the best result
- Start from the best JPG you have: converting an already heavily compressed JPG will not bring back lost detail, it only stops further losses.
- For hero images and product photos, 75 to 85% is usually the sweet spot; watch the before/after slider on fine textures such as hair or fabric.
- Printing the result? Under More options you can write a DPI value (72 to 600) into JPG and PNG files without changing the pixels.
Private, free and fast
The conversion runs entirely on your device: your browser reads the JPG images, draws them on a canvas and encodes the WebP files locally. Nothing is uploaded to a server, so private photos and client work stay on your computer. There is no sign-up, no watermark and no daily limit, and settings changes are applied live to every file in the list.
Features
- Typically 25 to 35% smaller than the original JPG
- Default quality 85% tuned for photos
- Runs in your browser: files are never uploaded
- Convert many files at once and download them as a ZIP
- Quality slider or target file size in KB
- Optional resize, DPI setting and file-name pattern
Frequently asked questions
Does converting JPG to WebP reduce quality?
Slightly, as with any re-encoding of a lossy format, but at 80 to 90% quality the difference is normally invisible while the file becomes clearly smaller.
How much smaller is WebP than JPG?
Usually 25 to 35% at similar visual quality. The exact saving depends on the photo and the quality you choose; the tool shows the new size of every file.
Can all browsers show WebP images?
Yes, all current browsers including Safari 14 and later display WebP. Only some older apps and upload forms still refuse it.
Should I keep my original JPG files?
Yes. Keep the JPG as your master copy and publish the WebP version; you can always create a new WebP from the original with different settings.
Are my JPG files uploaded to a server?
No. The conversion happens in your browser on your own device, so your images never leave your computer. EXIF location and camera data are also removed from the results.
Can I convert several JPG files at once?
Yes. Select or drop as many files as you like (up to 80 MB each); they are all converted with the same settings and you can download them one by one or together as a ZIP file.