Convert PNG to WebP
Convert PNG images to the WebP format and make your files much smaller.
This is a free online tool that allows you to convert PNG images to WebP. Upload a PNG file, choose the quality, compare the file sizes and download the converted image.
WebP is an image format created by Google that compresses pictures much better than PNG and JPEG, while keeping support for transparency. Converting your images to WebP is one of the easiest ways to make a website load faster.
Everything runs directly in your browser. No downloads or installations required. Your images are never uploaded to a server.
Drop your image here
How to convert a PNG image to WebP?
To convert a PNG file to the WebP format, follow these simple steps:
- Upload the PNG image - Drop or select the file you want to convert. You can also paste an image from the clipboard with CTRL+V.
- Choose the quality - Move the quality slider and watch the file size of the WebP image change. The canvas always shows the converted image, so you can see exactly how the quality affects the result.
- Choose what to do with the transparency (optional) - WebP keeps the transparent areas of the PNG. If you prefer a solid background, turn off "Keep transparency" and pick a color.
- Compare the sizes - The table shows the size of the original file and the size of the converted WebP file.
- Download the WebP image - Click "Download WebP image" to save the converted file.
Use the "View original image" switch above the canvas to compare the converted image with the original one.
Settings
Below are the parameters you can configure when converting a PNG image to WebP.
| Field | Description |
|---|---|
| Quality | The quality of the WebP compression, from 1 to 100. A high value keeps more details but produces a bigger file, and a low value produces a smaller file with more compression artifacts. Values between 70 and 85 are a good compromise for photos. |
| Keep transparency | WebP supports transparency, so the transparent pixels of the PNG stay transparent. Turn this option off to fill the transparent areas with a solid color. |
| Background color | The color that fills the transparent areas of the image, when "Keep transparency" is turned off. |
PNG vs WebP
Both formats support transparency, but they compress the images in different ways.
| PNG | WebP | |
|---|---|---|
| Compression | Lossless: every pixel is preserved. | Lossy compression (this tool), so the file gets much smaller at the cost of some detail. |
| File size | Big, especially for photos. | Usually 25% to 80% smaller than the same image in PNG. |
| Transparency | Yes. | Yes. |
| Animation | No (only APNG). | Yes. |
| Best for | Logos, icons, screenshots, pixel art and images that are going to be edited again. | Images published on websites and apps, where the loading time matters. |
Frequently Asked Questions (FAQ)
Are my images uploaded to a server?No. All the processing is done in your browser, so your images never leave your computer.
Is this PNG to WebP converter free to use?Yes, this tool is 100% free and works directly in your browser, with no installation and no sign-up required.
Does the WebP image keep the transparency of the PNG?Yes. WebP supports an alpha channel, so the transparent areas of your PNG stay transparent. If you prefer a solid background, turn off the "Keep transparency" option and choose a color.
Which quality should I choose?It depends on the image. For photos, a quality between 70 and 85 usually produces a much smaller file without a visible difference. For logos, icons and images with text or sharp edges, use a higher value, between 90 and 100, because the compression artifacts are easier to notice in flat areas.
Why is the converted image sometimes bigger than the original one?It can happen with small images, with simple graphics that PNG already compresses very well, and when you choose a very high quality. When that happens, lower the quality, or simply keep the original PNG file.
Can I convert JPG, GIF or BMP images too?Yes. This tool converts to WebP any image format that your browser can open, including JPG, GIF, BMP and SVG. Only the first frame is converted, so animated GIFs become a static image.
Can I convert several images at once?This tool converts one image at a time. To convert another image, reload the page and upload the next file.
Do all browsers support WebP?Yes. WebP is supported by all the modern browsers, including Chrome, Edge, Firefox, Safari and Opera, and by Android and iOS.
Does converting to WebP change the size of the image?No. The converted image has the same width and height as the original one, only the file size changes. If you also want to change the dimensions, use the Resize image tool.