PNG to WebP converter
Convert PNG images to WebP and shrink their file size without losing visible quality. Everything happens on your device, so your images are never uploaded to a server.
Drag and drop your PNG images
or paste from clipboard, or use the button below
How to convert PNG to WebP
- Add your images
Drag PNG files onto the box, paste them, or select them from your device.
- Set the quality
Move the quality slider or set a resize width to match what your project needs.
- Download WebP
Save each file, or grab everything at once as a single ZIP archive.
Why convert PNG to WebP
WebP is a modern image format built by Google for the web. In most cases a WebP file is a good deal smaller than the same image saved as PNG, while looking the same to the eye. Smaller images mean pages load faster, which improves the visitor experience and helps with Core Web Vitals and search rankings. WebP also keeps full transparency, so logos, icons and cut out graphics stay clean with no white box behind them.
Features that go further
Conversion runs entirely in your browser, so files are never sent to a server and nothing is stored online.
Drop dozens of PNG files at once and convert them together, then download the whole set in one ZIP file.
See the exact size before and after for every image, plus the total space you saved across the whole batch.
Tune the WebP quality and set a maximum width, with the aspect ratio and transparency kept intact.
There is no sign up, no watermark and no file size cap set by a server, because the work happens on your machine.
Alpha transparency carries over from PNG to WebP, so icons and logos keep their clean edges.
PNG and WebP explained
What is a PNG file
PNG, short for Portable Network Graphics, is a lossless image format that supports transparency. It keeps every pixel exactly, which makes it great for logos, screenshots and graphics, but the files can be large.
What is a WebP file
WebP is an image format from Google that supports both lossless and lossy compression along with transparency and animation. It usually produces much smaller files than PNG at similar quality, which is why it is popular for websites.
Is it safe and private
Yes. This converter does all of its work inside your web browser using built in image tools. Your PNG files are read from your device, converted on the spot, and offered back to you as WebP. They are never uploaded, copied to a server, or kept anywhere after you close the page. That makes it a good fit for private, client or confidential images.
Frequently asked questions
Are my images uploaded anywhere
No. Every conversion runs locally in your browser, so your images stay on your own device from start to finish.
Is there a file size or file count limit
There is no limit set by a server. You can convert large files and long batches. Very large sets simply depend on your own device memory.
Does WebP keep PNG transparency
Yes. Transparent areas in your PNG are carried over to the WebP output, so logos and icons keep clean edges.
Will I lose image quality
You control that with the quality slider. A setting around 80 to 90 keeps images looking sharp while still cutting the file size a lot.
Which browsers are supported
Any modern browser such as Chrome, Edge, Firefox, Safari and Opera on desktop or mobile can run the converter.
Is it really free
Yes. There is no charge, no account and no watermark. You can use it as often as you need.