Add PNG files
Drop PNG images onto the upload area, click the whole card to browse, or paste PNG files from your clipboard.
IMAGE CONVERTER
PNG to WebP Converter
Convert PNG images to WebP in your browser. Keep transparency, tune WebP quality, compare real file sizes, and download one image or a whole batch.
Local processingTransparency preservedBatch conversion
Lower values usually shrink files more; higher values preserve more visual detail.
WebP supports alpha transparency, so transparent PNG pixels remain transparent.
Preserved
This converter keeps the original pixel width and height. Use Image Resizer for dimension changes.
Original size
Your PNG queue is emptyAdd one or more PNG images to start.
Ready for PNG files.
RESULTS
Converted WebP files
HOW TO USE
How to Use Motricialy PNG to WebP Converter
Choose WebP quality
Start at 82% and move the quality slider higher for detail or lower when you want a smaller result.
Convert and download
Convert locally, compare real file sizes and previews, then download individual WebPs or one ZIP.
Key Features
A focused PNG to WebP workflow
Batch conversion
Queue up to 30 PNG images and convert the full batch without repeating the workflow one file at a time.
WebP quality control
Choose quality from 40% to 100% and rerun the batch until file size and visual detail fit your use case.
Transparency preserved
Transparent and semi-transparent PNG areas stay transparent in the WebP output instead of being flattened.
Private local processing
PNG decoding and WebP encoding happen in your browser, so conversion does not require uploading the images.
Real size comparison
See actual input and encoded output bytes. The tool does not promise every PNG will become smaller.
ZIP batch download
Download WebP results one by one or package all successful conversions into a ZIP generated locally.
FORMAT GUIDANCE
When PNG to WebP is useful
WebP is a practical delivery format for websites and apps because it supports transparency while often producing smaller files than large PNG screenshots, graphics, or exported assets. Keep the original PNG when you need a lossless editing source or a workflow that explicitly requires PNG.
Very small icons and already optimized PNG files do not always get smaller after conversion. Check the actual before/after bytes instead of assuming a saving. If you only need to reduce size without changing format, Motricialy's Image Compressor is the more direct workflow.
The converter keeps original pixel dimensions. For width or height changes, use the Image Resizer before or after format conversion.
FAQ
PNG to WebP questions
Does WebP keep PNG transparency?
Yes. Modern browser WebP encoders support alpha transparency, and this converter keeps transparent and semi-transparent pixels instead of adding a background.
Will every WebP be smaller than the PNG?
No. Large screenshots and graphics often shrink well, but tiny images or highly optimized PNGs can stay similar in size or even grow. Motricialy shows the actual encoded byte size so you can decide.
Are my PNG files uploaded?
No upload is required for the conversion itself. The browser decodes the PNG and encodes the WebP locally. If your goal is only compression, try Motricialy's Image Compressor.
What does the WebP quality slider change?
It changes the browser's lossy WebP encoding quality. Lower settings generally reduce file size more, while higher settings preserve more detail. Always inspect the preview when image detail matters.
Does this converter support animated PNG?
No. Animated PNG files are rejected instead of silently flattening the animation into one frame. This page is intentionally limited to static PNG → WebP conversion.