JPG to WEBP converter
Your files are converted on your device. They are never uploaded.
or drop them here, or paste with Ctrl+V / ⌘V
.jpg.jpeg
- Files stay on your device
- Batch + ZIP
- No sign-up, no limits
This converter runs in your browser and needs JavaScript. Turn it on to convert; the steps below explain everything.
Settings
Re-encode JPG photos as WEBP for faster pages, with the size and quality under your control.
If page speed scores keep pointing at “serve images in next-gen formats”, this is the fix for your JPGs. WEBP stores a photo in noticeably fewer bytes than JPG at the same visual quality, and every current browser displays it. The page converts your photos locally, so unreleased product shots or client images never sit on someone else’s server, and it can shrink oversized camera photos to web dimensions in the same pass.
How to convert JPG to WEBP
- Drop your JPG photos here; folders of hundreds are fine.
- Set a max size that matches your layout (for example 1600 px for a content column) and keep quality around 80–85.
- Convert and download the WEBPs as a ZIP, then upload them to your site.
What happens to quality, size and metadata
JPG to WEBP is a lossy-to-lossy conversion, so it is worth starting from the best JPG you have. At quality 80–85 the WEBP is typically clearly smaller than the source and looks the same at normal viewing size. Setting a max size usually saves far more than any quality tweak, because a 4000 px camera photo shown at 1200 px wastes most of its bytes.
WEBP files from this tool carry no EXIF, which also means no GPS location, camera model or date taken. Rotation is baked into the pixels, so portrait photos stay upright.
- Test files
- 30
- Average input
- 2.2 MB
- Average output
- 1.1 MB
- Size change
- 49% smaller
- Time per file
- 815 ms
JPG vs WEBP
| Full name | JPG | WEBP |
|---|---|---|
| Full name | JPEG (Joint Photographic Experts Group) | WebP |
| Introduced | 1992 | 2010 |
| Defined by | JPEG (ITU-T & ISO/IEC) · ITU-T T.81 / ISO/IEC 10918-1 | Google · RFC 9649 |
| Compression | Lossy | Lossy or lossless |
| Transparency | No | Yes |
| Animation | No | Yes |
| Largest size | 65,535 × 65,535 px | 16,383 × 16,383 px |
| Chrome / Edge | Yes | Yes |
| Safari | Yes | Yes |
| Firefox | Yes | Yes |
| Windows | Yes | Yes |
| iPhone / iPad | Yes | Yes |
| Android | Yes | Yes |
| Typical use | Photos for sharing, email, online forms and printing, where it has to open everywhere. | Images on websites and in apps, where small files mean faster pages. |
JPG JPG is the lossy photo format standardised in 1992 as ITU-T T.81. It throws away detail the eye barely notices, and the quality setting decides how much. It has no transparency and no animation, but every phone, computer, browser, printer and upload form opens it.
WEBP WebP is an image format Google released in 2010, documented as RFC 9649. It has a lossy and a lossless mode, transparency and animation, and is usually 25–35% smaller than JPG or PNG at similar quality. Websites use it heavily, but some desktop apps and upload forms still refuse it.
Sources for this table
- www.itu.int/rec/T-REC-T.81
- www.w3.org/Graphics/JPEG/itu-t81.pdf
- developer.mozilla.org/en-US/docs/Web/Media/Guides/Formats/Image_types
- developer.android.com/media/platform/supported-formats
- www.rfc-editor.org/rfc/rfc9649
- developers.google.com/speed/webp/faq
- caniuse.com/webp
Browser support data: caniuse.com, CC BY 4.0.
Without this site
Neither Windows nor macOS can save WEBP from their built-in apps: Photos, Paint and Preview open WEBP but don’t export to it. Image editors and command-line tools can, and many content management systems and image CDNs convert uploads automatically. If yours does, you may not need to convert at all; check whether it serves WEBP before doing the work twice.
Troubleshooting
- No date or camera info in the WEBP. Fine for websites, but keep the JPGs as your archive.
- Converting a small, heavily compressed JPG. The savings are smaller, and old artefacts don’t go away. Start from larger originals where you can.
- An email or document needs it. Some mail clients and office apps still don’t show WEBP. Use JPG there.
- Quality 100 isn’t lossless. It just makes a large file. 85 is the sweet spot for photos.
Questions and answers
Is WEBP better than JPG?
For websites, yes: WEBP gives a similar-looking photo in fewer bytes, and it also supports transparency and animation. For sharing files with people, printing or archiving, JPG is still the safer choice because every device and program reads it. Use WEBP on your site and keep JPG originals.
Will converting JPG to WEBP reduce quality?
Slightly, because the photo is compressed once more. At quality 80–85 the difference is hard to see at the size people view web images. Converting from a large, high-quality JPG gives the best result; converting an already blocky JPG keeps its blockiness.
What quality should I use for WEBP?
80–85 suits most photos on websites. Go up to 90 for images with fine detail people zoom into, such as products or artwork, and down to 70–75 for large background images where speed matters more than detail. Resizing to the displayed width usually saves more than lowering quality.
Can I convert JPG to WEBP in bulk?
Yes, there is no file limit. Drop a whole folder, set quality and max size once, and every photo gets the same settings. Your device does the work in parallel and “Download all” gives you one ZIP. On Safari the WEBP encoder loads once before the first file.