Choose or drop a PNG, set quality and see the original and WebP output side by side. Transparent pixels stay transparent when your browser encodes WebP.
BROWSER-ONLY IMAGE CONVERSION
Convert one image at a time with an editable quality setting. Dimensions are preserved; PNG transparency is retained.
Drop a PNG here or choose a file
One PNG · Up to 25 MB · Up to 8,000 px per side / 16 million pixels.
Quality is a browser encoder setting, not a guaranteed file-size target. WebP output may be larger than the original. PNG alpha is preserved by an alpha-enabled canvas.
Images are processed locally in your browser and never uploaded or stored by Nimzoa.
Choose a valid raster image or paste image Base64; nothing is uploaded.
Review the verified image and choose a quality setting when converting to WebP.
Copy or download your browser-generated result after checking details.
Add a PNG, review its decoded dimensions, select WebP quality (default 80), convert and download the alpha-preserving result.
Alpha-enabled canvas preserves PNG transparency; validation checks PNG bytes and dimensions, with previews and honest size comparison.
Conversion runs in your browser without image uploads. WebP size can be larger than PNG depending on content and quality.
Yes. PNG draws to an alpha-enabled canvas without an opaque background; the browser WebP encoder retains transparent pixels.
Yes. Choose an integer from 1 to 100; the initial setting is 80.
No. Depending on content and browser encoding, the WebP output can be larger than the PNG.
No. The converted image keeps the decoded PNG width and height within browser safety limits.
No. Files are validated, previewed, converted and downloaded in your browser only.
The tool reports a conversion error and keeps the original PNG available.