Convert JPG to WebP
Convert images to WebP automatically in your browser. Select several files at once — free, with no uploads or sign-up.
100% local browser processing · zero image upload
What is a JPG to WebP converter?
A JPG to WebP converter re-encodes a JPEG photo as WebP, the image format Chrome, Safari, Firefox and Edge all support today. At matching visual quality WebP is typically 25–60% smaller than JPEG, which is why image-heavy pages, product galleries and content sites have made it their default.
The trade is real but narrow: WebP keeps the pixel dimensions, the colours and the overall look of the original photo, and it adds transparency and animation that JPEG never had. It is still a lossy format, so this is not a lossless conversion — the same picture is simply described with fewer bytes.
Use it when the file is going on a website: hero images, product photography, blog covers, anything your Lighthouse or Core Web Vitals score will judge. Keep the JPG when the file has to open in older desktop software, when it is heading to a print shop, or when a client describes their upload form as accepting .jpg only.
If the goal is only to shrink a file and the format can stay the same, the image compressor does that without touching the format. For the opposite direction, the WebP to JPG converter turns a WebP back into a file every desktop application can open.
How to convert JPG to WebP
- Drop your JPG or JPEG files onto the upload area, or click to browse. Multiple files are supported, so a whole gallery can be queued in one step.
- Queued images appear in the list with their original size.
- Conversion starts automatically after you select your images.
- Download an image and open it to inspect the result, including any transparent areas.
- Open a converted file in a browser tab, or re-run Lighthouse if the page is already live — quality problems show up as blocky gradients or soft text.
- Download the WebP files individually or use Download all for the batch.
JPG to WebP examples
Four conversions you can reproduce with the tool above. The converter always writes WebP at quality 80, so the output sizes below are typical results rather than exact guarantees.
Product photo
hero-shot.jpg — 2.4 MB, 2000×1333
hero-shot.webp — 0.8 MB (67% smaller, transparency not needed)
Blog cover
cover.jpg — 480 KB, 1200×630
cover.webp — 190 KB (60% smaller, same dimensions)
Screenshot with text
dashboard.jpg — 620 KB, 1600×900
dashboard.webp — 250 KB (60% smaller, edges stay readable at 80% quality)
Already-optimised JPG
thumb.jpg — 45 KB, 600×400, saved at quality 60
thumb.webp — 52 KB, larger than the source — compress instead of converting
WebP vs JPG
| Dimension | WebP | JPG / JPEG |
|---|---|---|
| Compression at equal quality | 25–60% smaller | Baseline |
| Transparency | Supported | Not supported |
| Animation | Supported | Not supported |
| Browser support | All current browsers | Universal |
| Lossless option | Yes, lossless WebP | No |
| Software support | Browsers and modern editors | Universal, including print and Office |
| Best for | Web delivery | Cameras, print, archival |
Frequently asked questions
Is WebP smaller than JPG?
Yes. At matching visual quality a WebP photo is usually 25–60% smaller than the same JPEG, and the gap is widest on photographic content. The saving depends on the image: a photo with lots of detail benefits most, while an already-compressed thumbnail can come out slightly larger.
Does converting JPG to WebP reduce quality?
Slightly, because WebP is lossy at the quality this tool uses. It encodes at quality 80, the level where photos normally look identical on screen while the file gets much smaller. If a pixel-exact copy is the requirement, keep the JPG or compress losslessly in an image editor.
Do all browsers support WebP?
Chrome, Firefox, Edge and Safari all support WebP today, and Safari has since version 14 in 2020. Older desktop software is the weak spot: some print workflows, legacy CMS uploads and pre-2019 image editors still expect a JPEG.
Can I convert several JPG files at once?
Yes. The upload area accepts multiple files and the queue converts them in a single run, so a folder of product photos becomes WebP in one batch.
Is it free, and do I need an account?
It is free. There is no sign-up, no watermark and no limit on how many files you convert in a session.
Are my images uploaded?
No. Conversion happens in your browser with the Canvas API, so the images never leave your device.
How do I turn a WebP back into JPG?
Use the WebP to JPG converter linked in Related Tools, or in the text above. It re-encodes the WebP as JPEG, which every desktop application, printer driver and upload form will open.
JPG to WebP Tips
- WebP usually saves 25–60% over JPG at similar quality.
- Quality is fixed at 80% — a good balance for photos.
- Select several files at once: the queue converts a whole gallery in one run.
- An already-compressed thumbnail can come out larger; compress instead of converting.
- Everything runs locally — the images never leave your device.