Convert PNG to WebP
Convert PNG images to WebP locally in your browser. Create modern WebP files with adjustable quality, transparency support, and private browser processing.
What this PNG to WebP converter does
NexKit PNG to WebP converts PNG images into WebP files directly in your browser. It is a focused format-pair page, so the input is restricted to PNG and the output is fixed to WebP.
WebP is useful for web delivery and modern publishing workflows. It can reduce file size for many images, but the final size depends on image content and the selected quality setting.
How to convert PNG to WebP
Upload one or more PNG files, choose the WebP quality, then run conversion. Successful WebP files can be downloaded individually or together as a ZIP generated locally in the browser.
If a selected file is not a real PNG, the page rejects it instead of silently converting a different format. APNG is rejected because this tool does not preserve animation.
Transparency and WebP quality
PNG transparency is preserved in WebP output when the browser Canvas encoder supports WebP alpha. The converter does not add or remove transparent regions beyond the browser-decoded image.
The WebP quality setting is lossy at many values. Lower quality can reduce file size more, while higher quality preserves more detail. WebP output is not guaranteed to be smaller for every PNG.
Privacy and local processing
PNG files are decoded and converted locally in your browser. NexKit does not upload selected images to a server or send file contents to a cloud conversion service.
Canvas re-encoding usually does not preserve original EXIF, GPS, ICC, text chunks, or other metadata. This page is not a metadata preservation workflow.
Frequently Asked Questions
Are my PNG files uploaded?
No. PNG to WebP conversion runs locally in your browser. The selected PNG files are not uploaded to NexKit servers by this tool.
Does WebP support transparency?
Modern WebP can support transparency, and this browser-local Canvas workflow preserves PNG alpha when the browser encoder supports WebP transparency.
Will PNG to WebP always make the file smaller?
No. WebP often creates smaller web images, but the result depends on image content, dimensions, transparency, and the selected quality setting.
Can I convert multiple PNG files?
Yes. You can add multiple PNG files, convert them with one shared WebP quality setting, and download each WebP file or a ZIP of successful outputs.