Convert Image to WebP
Turn JPG, PNG or HEIC images into WebP, the smaller format websites use. Transparency is kept, and you can convert a whole batch at once.
Convert to WebP · Step 1 of 3 · Add your photo
Drop images to convert
or paste with Ctrl+V · JPG PNG WebP HEIC GIF · max 25 MB
Processed on this device. Nothing is uploaded.
Example
Before and after
We ran this sample through the convert to webp tool above. The numbers under each image are measured from the real files.
How to
How to convert Image to WebP
- 1.
Add your images. Drop one file or a whole folder of images.
- 2.
Keep WebP. The output is already set to WebP.
- 3.
Download. Save each file, or all of them as a ZIP.
Why this size
Why websites use WebP
WebP produces files about 25 to 35% smaller than JPG at the same visual quality, and supports transparency like PNG.
That makes pages load faster and helps Core Web Vitals. Every modern browser shows WebP, though some upload forms and older apps still accept only JPG or PNG, so keep your originals.
Compare
WebP vs PNG: what changes when you convert
| WebP | PNG | |
|---|---|---|
| Best for | Websites and apps | Logos, screenshots, transparency |
| Compression | Lossy or lossless | Lossless |
| Typical photo size | 200-700 KB | 4-8 MB |
| Transparency | Yes, kept | Yes, kept |
| Accepted by forms | Sometimes | Usually |
Tips
Tips that make a difference
Convert from the original
Need a smaller file as well?
Avoid
Common problems and fixes
- An upload form rejects the WebPMany forms still accept only JPG or PNG. Use WebP for websites and keep a JPG for forms.
- The WebP is hardly smallerA JPG that was already heavily compressed has little left to save. Large, high quality originals shrink the most.
- An animated GIF became a still imageEach image becomes a single frame.
FAQ
Convert to WebP: questions
- Does WebP work in every browser?
- Yes, every current browser shows WebP. Some upload forms and older desktop apps still accept only JPG or PNG.
- How much smaller is WebP?
- About a quarter to a third smaller than a JPG of the same quality, and often much smaller than a PNG.
- Does it keep transparency?
- Yes. Transparent areas of a PNG stay transparent in the WebP.
- Can I convert many files at once?
- Yes. Add up to 5 images at a time, or 50 with a free account, and download them as a ZIP.
- Are my files uploaded?
- No. Conversion runs in your browser, so your images never leave your device.
Checked
How we checked this page
Checked by the SizePort team on .
We compare every size and rule on this page with the official sources below, and test the tool with sample photos before it goes live. Rules and platforms change, so if something here is out of date, tell us and we will correct it.
How the tool works
The image is decoded in your browser and saved again in the new format at a high quality setting. PNG and WebP keep transparent areas; JPG and GIF get a white background. A JPEG converted to JPG without a size limit keeps every byte and only changes the file name. Everything happens in your browser; your images are never uploaded.