Convert JPG to WebP in your browser
Free JPG to WebP converter. Shrink JPG photos 25–50% for faster websites and tighter email attachments. Batch-convert, no upload, no signup. Output is pre-set to WebP.
How to use the JPG to WebP converter
- 1
Drop your JPG files
Drag and drop one or more .jpg or .jpeg images into the box, or click to pick them.
- 2
Output is set to WebP
WebP is pre-selected. Quality 85 is a safe default for photos — the WebP will look identical to the JPG but be 25–50% smaller.
- 3
Convert and download
Each JPG is re-encoded as WebP in your browser. Download instantly — nothing is uploaded.
Why convert JPG to WebP
Modern websites have a problem: a folder of JPG photos that looks fine on a phone screen can add up to several megabytes per page, which kills load time and Core Web Vitals scores. WebP solves this. The same photo at equivalent perceived quality is typically 25–50% smaller — sometimes more on uniform images. Across a page with ten product shots, that is the difference between a snappy site and a slow one.
There is one trade-off worth being honest about: JPG and WebP are both lossy, so converting one to the other means a second round of compression. At quality 85 the second round is imperceptible on photos. At quality 95 it is unmeasurable. The output WebP is a smaller version of the JPG you fed in, with the same artifacts the JPG already had (and not noticeably more).
Everything runs locally: the JPG is decoded in your browser, re-encoded as WebP on your own device, and never uploaded. If you want to go the other direction or convert a PNG, see our WebP to JPG and PNG to WebP tools. For other directions, the image format converter handles every pair.
Your files never leave your browser.
All processing runs locally on your device. No uploads, no tracking of file content.
FAQ
How do I convert JPG to WebP?
Drop your JPG file into the box above. WebP is already selected as the output, so just click convert and download. Drop several JPG files to convert them all at once.
How much smaller will the WebP be?
For photographic JPGs, expect 25–50% smaller at the same perceived quality. JPG is already a lossy compressed format, so the gap is smaller than when shrinking a lossless PNG (which can hit 80%) — but the savings are still substantial enough that almost every modern website ships WebP instead of JPG.
Will I lose quality re-encoding a JPG as a WebP?
Slightly, but invisibly in nearly every case. JPG is lossy and WebP is lossy, so going JPG → WebP means two rounds of lossy compression. At quality 85 the second round is essentially imperceptible on photos. If you need belt-and-braces preservation, push the quality slider to 95 — you'll get a larger WebP but no visible degradation even on close inspection.
Why convert JPG to WebP instead of just keeping JPG?
Three reasons. (1) Web pages: smaller WebP means faster page loads and better Core Web Vitals scores. (2) Email and upload-form size limits: a JPG that's just over a 5 MB cap usually fits as a WebP. (3) Storage: shrinking a folder of JPG photos by 25–50% adds up across hundreds of files. The catch is desktop apps — many still don't open WebP, so keep your master JPGs and only export WebP copies for web use.
Does WebP work in every browser?
All modern browsers — Chrome, Firefox, Safari (14+), Edge, Opera, and every mobile browser — render WebP natively. The only exceptions are very old iOS (pre-2020), old Safari, and Internet Explorer. For modern web use, WebP just works.
When should I NOT convert JPG to WebP?
If the target is print, a desktop app that doesn't accept WebP (older Office versions, some photo viewers, government upload forms), or anywhere you need universal compatibility — stay JPG. WebP wins for web delivery, but JPG is still the safer default for files that get opened by unknown software.
Are my JPG files uploaded anywhere?
No. The conversion runs entirely in your browser using the Canvas API. Your images never leave your device — check the Network tab if you want to confirm.
Can I convert multiple JPG files to WebP at once?
Yes. Drop as many JPG files as you want in one go. Each is converted and downloaded separately.
Related tools
Last updated: 2026-05-23