JPG to WebP Converter
Converting JPG to WebP usually removes another 25 to 35 percent of the file size at the same visible quality, which is the cheapest performance win available for an image-heavy site. Pick a quality level and convert as many photos as you need at once. Everything runs in your browser, so nothing is uploaded and there is no queue.
How to convert JPG to WebP
- Drop your JPG files into the box above, click to browse, or paste an image with Ctrl+V.
- Adjust the quality, background or output size if you need to. The defaults are already sensible.
- Click Convert and download your WebP files, one by one or as a single ZIP archive.
Why convert JPG to WebP
If your pages are slow, images are almost certainly the reason, and photographs stored as JPEG are usually the largest of them. WebP applies a more modern compression method to exactly that content and produces a meaningfully smaller file at a quality most viewers cannot distinguish, which improves Largest Contentful Paint, the metric Google weighs most heavily in the page experience signal. Browser support is no longer a reason to hesitate. The honest caveat is that you are recompressing something already compressed, so the sensible workflow is to convert from the highest quality original you have, and to keep the JPEG around for anyone who needs to download the photo itself.
Your files stay on your device
Conversion happens entirely inside your browser using standard web technologies. Nothing is uploaded, nothing is stored, nothing is logged. You can open your browser network inspector during a conversion and watch it stay completely silent.
About JPEG Image
JPEG, almost always seen with the .jpg extension, has been the standard format for photographs since 1992. It compresses by discarding the detail the human eye is least likely to notice, which makes photographic files dramatically smaller at a quality setting most people cannot distinguish from the original. Practically every device, application, printer and web form accepts JPEG without question, which is why it remains the safest format to hand to someone else. It has two firm limits: no transparency at all, so transparent areas must be flattened onto a solid colour, and lossy compression, so every re-save of an edited JPEG throws away a little more detail.
- Released by the Joint Photographic Experts Group in 1992 and still the most widely supported image format in existence.
- Quality is adjustable from 1 to 100; above roughly 85 the visual gain is hard to see while the file keeps growing.
- No transparency support whatsoever, which is why transparent images need a background colour first.
- Generational loss is real: opening, editing and re-saving the same JPEG repeatedly degrades it visibly.
- The safest choice for email attachments, print submission and any upload form with a strict format list.
About WebP Image
WebP is a modern image format developed by Google and released in 2010 as a single replacement for JPEG, PNG and GIF. It offers both lossy and lossless compression, supports transparency and animation, and typically produces files 25 to 35 percent smaller than an equivalent JPEG or PNG at comparable visual quality. Every current browser decodes WebP, which is why most content delivery networks and publishing platforms now serve it automatically. The trade-off appears outside the browser: many desktop applications, older photo editors, print shops and operating system preview tools still refuse to open a .webp file, and that gap is the reason most people end up converting one.
- Created by Google in 2010, based on the VP8 video codec; the lossless mode arrived in 2011.
- Supports a full 8-bit alpha channel in both lossy and lossless modes, which JPEG cannot do at all.
- Decoded by Chrome, Firefox, Safari 14 and later, Edge and every mobile browser in current use.
- Animated WebP exists and is far more efficient than GIF, but very few desktop applications play it.
- Weak spot: support outside the browser. Office suites, older editors and print workflows still reject it.
Frequently asked questions
Does converting an already compressed JPEG to WebP make it look worse?
Slightly, in principle, because the image is decoded and re-encoded with a different lossy method. At quality 90 the second pass is essentially invisible on photographs. Converting from the highest quality JPEG you have keeps the result cleanest.
How much smaller is WebP than JPEG in practice?
Usually 25 to 35 percent at comparable visual quality. Photographs with smooth gradients, such as skies and skin tones, benefit the most; very small or already heavily compressed JPEGs benefit the least.
Will my photo be rotated correctly?
Yes. The browser applies the EXIF orientation flag while decoding, so the WebP is written the right way up. The orientation tag itself is not carried over, because the pixels no longer need it.
Does the WebP keep my camera metadata and GPS coordinates?
No. The conversion redraws the image from decoded pixels, which drops EXIF entirely. For photos you are publishing, removing location data is usually what you want.
Should I serve WebP to everyone, or keep JPEG as a fallback?
For a site built today, serving WebP directly is fine; every browser in current use supports it. A picture element with a JPEG fallback costs nothing extra and is still worth having if you must support very old clients.