Free browser image tool
PNG to WebP Converter Online
Convert PNG images to WebP locally in your browser without uploading the file.
Converts many image inputs to PNG, JPG, WEBP, GIF, BMP, TIFF, AVIF or a custom extension. First run downloads the FFmpeg engine; your image stays in the browser.
What this page does
This focused workflow converts PNG to WebP to reduce web asset size while retaining transparency when the encoder and source support it. PNG is commonly used for lossless pixels, sharp text and transparency, with larger photographic files. WebP is useful for efficient web delivery with lossy, lossless and transparent images, with weaker support in some older applications.
How to use PNG to WebP Converter
- Upload a .png image.
- Choose WebP from the converter presets.
- Adjust quality when the WebP encoder provides that option, then run the conversion.
- Download the .webp file and test it in the final application.
Good uses
- Transparent web graphics
- Screenshots and UI assets tested for smaller delivery
- Replacing oversized PNG files on modern websites
How to verify the result
- Confirm the downloaded filename ends in .webp.
- Compare width, height, color and orientation with the source.
- Inspect the result at full size and test it in the destination that requires WebP.
Known limitations
- WebP can retain transparency when the source and encoder provide it.
- The conversion creates one still WebP image.
- Text-heavy graphics should be inspected closely because lossy WebP settings can soften edges.
Examples
- Convert a transparent PNG product cutout to WebP.
- Test a screenshot as lossless or high-quality WebP.
- Create a smaller web copy of a PNG logo while keeping the original.
Related image tasks
Convert JPG images to WebP locally in your browser without uploading the file.
Convert WebP to PNG in the browser for transparency and lossless editing workflows.
Create a transparent PNG by separating the foreground subject from the image background in your browser.