JPG & PNG to WebP Converter
Convert JPG and PNG images to WebP in your browser for smaller files. Set the quality, keep PNG transparency, batch convert and download a ZIP. Nothing is uploaded.
How the JPG & PNG to WebP Converter works
Convert JPG and PNG images to WebP for faster websites and smaller files. Set the quality, keep PNG transparency, and batch convert in your browser without uploading anything.
- Drop JPG or PNG images onto the page, click to choose them, or paste them.
- Set Quality (80% by default, a good balance for websites).
- Drag Compare on the preview to check the quality against the original.
- Download each WebP, or click Download all (ZIP).
Why convert to WebP
WebP images are typically 25–35% smaller than JPG at similar visual quality, and far smaller than PNG for photos, while still supporting transparency. Smaller images make pages load faster, which helps visitors and Core Web Vitals. All current versions of Chrome, Edge, Firefox and Safari display WebP.
PNG transparency is kept
Transparent and semi-transparent areas in a PNG stay transparent in the WebP, so logos and cut-outs keep working. WebP output here is lossy at the Quality you set; for very sharp graphics use a high quality such as 90–100%.
Browser support for creating WebP
The WebP file is made by your browser's own encoder. Chrome, Edge and Firefox can create WebP; some browsers, including some versions of Safari, can display WebP but can't create it from a web page. If yours can't, the tool says so instead of quietly saving a different format.
Privacy and limits
Files are read, decoded and encoded by your own browser with the Canvas API. Nothing is uploaded, and the download is created on your device, so it's safe for personal photos and work documents. Converted files contain only the image. EXIF metadata such as the camera model, the date taken and GPS location is not copied. Photos that rely on an orientation tag are rotated upright first, so they still display the right way round.
You can add up to 50 files at a time, each up to 50 MB and 50 megapixels. Larger images are refused with a message instead of being loaded, so the tab doesn't run out of memory. Output keeps the full resolution unless the browser can't allocate a canvas that big (some mobile browsers stop at about 16.7 megapixels); then it's scaled down to fit and the file is labelled.
Frequently asked questions
How much smaller will my images be as WebP?
For photos, usually 25–35% smaller than a JPG of similar quality, and often 70–90% smaller than a PNG. The list shows each file's size before and after.
What quality should I use for WebP?
80% is a good default for websites. Go to 85–90% for product photos or images with fine detail, and try 60–70% for thumbnails.
Does PNG to WebP keep transparency?
Yes. WebP supports transparency, so transparent backgrounds are preserved.
Why does it say my browser can't create WebP files?
Creating WebP relies on the browser's built-in encoder, which some browsers, including some Safari versions, don't provide. Open the page in Chrome, Edge or Firefox to convert.
Can I convert images in bulk?
Yes, up to 50 at a time with one quality setting. Download all (ZIP) saves them as webp-images.zip.
Are my images uploaded?
No. Conversion happens in your browser and nothing leaves your device.
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