IMAGE TOOLS
JPG to WebP
Convert JPG photos to WebP to make web images noticeably smaller without an obvious loss of quality.
Quick answer: Add your JPG files, leave the output format on WebP, keep quality around 80 to 90 percent, convert, and compare the sizes shown for each file.
Use JPG to WebP ↓Loading the tool…
How to use JPG to WebP
- Add the JPG filesSelect a batch from your computer or phone. Nothing is uploaded.
- Confirm WebP and set qualityWebP is already selected. Start at 80 to 90 percent for photographs and lower it if you want a smaller file.
- Resize for the pageUse the maximum width or height box to match the size the image is displayed at, for example 1600 pixels for a full-width banner.
- Check and downloadOpen one converted file at full size before converting the rest, then download the files separately or all together as a ZIP.
About this tool
Image weight is one of the biggest causes of slow pages. WebP files are typically a quarter to a third smaller than JPG at similar visual quality, so converting a photo library can speed up a website without redesigning it. This page does the conversion in your browser, in batches, and shows the size change for every file.
Practical example: Convert 20 article photos, set the maximum width to 1600 pixels and quality to 80 percent, and compare the total size in the result list.
Important limitation: Some programs and upload forms still reject WebP. Metadata is not copied, and converting an already compressed JPG adds a little more loss.
Conversion happens in this browser tab. The images are never uploaded. Read the privacy information.
How it works
The browser decodes each JPG and re-encodes the pixels as WebP at the chosen quality, optionally after scaling the image down.
Real-world uses
- Speeding up a website by reducing image weight
- Preparing a blog or shop image library
- Making files smaller for storage while keeping them viewable in browsers
Using WebP sensibly
WebP is supported by all current major browsers, which makes it a good default for images on websites you control. Be more careful elsewhere. Email programs, older desktop software, print services and many upload forms still expect JPG or PNG, so keep a JPG copy for anything you share outside your own site.
Do not convert in a chain. Start from the original JPG or, better, the original camera file, because converting an already compressed image to another lossy format adds more loss. Compare the converted file with the original at full size, looking at faces, skies and fine text, before you convert the rest of the batch.
Size comes from three things in this order: pixel dimensions, quality and format. A 4000-pixel photo shown at 800 pixels carries many times more pixels than it needs, so set the maximum width or height first. Then adjust quality; for photographs, 80 to 90 percent is a sensible range. Format is the last gain, and WebP gives you that gain without extra effort.
On a website, serve WebP with a JPG fallback only if you need to support very old browsers. For most sites today, plain WebP is fine. Always confirm in your own content system that WebP uploads are accepted before converting a whole library.
Tips for better results
- Resize before adjusting quality; it gives the biggest saving.
- Keep the original JPGs as masters.
- Test one image on the real page before converting the whole library.
Frequently asked questions
How much smaller will the WebP be?
Typically a quarter to a third smaller than a JPG of similar quality, but it depends on the image. The result list shows the exact change for every file.
Do all browsers display WebP?
All current major browsers do. Some older software and many upload forms do not, so keep a JPG copy for sharing.
Will quality drop?
WebP is lossy at the settings used for photographs. At 80 to 90 percent the loss is normally invisible. Check one image at full size first.
Can I convert JPG to WebP in bulk?
Yes. Add many files at once and download them separately or as a ZIP.