About PNG to WebP
If the images are going on a website, this is usually the single best conversion available. WebP gives you most of PNG's strengths at a fraction of the size, and every current browser supports it.
The size difference is substantial. WebP is typically 25–35% smaller than PNG for the same visual result, and for photographic content stored as PNG the saving is far larger — often 80% or more, because you are escaping lossless compression of noise that never needed to be lossless.
Transparency comes with you. This is the key advantage over converting to JPG. Logos, icons, product cutouts and UI assets all keep their alpha channel intact. WebP supports transparency in both its lossy and lossless modes, so you are not forced to choose between small files and a clean edge.
On the quality setting. WebP here is lossy, which is what produces the size reduction. At 90 the result is visually indistinguishable from the PNG for photographs and gradients. For flat graphics with hard edges — logos, screenshots of text — push it to 95 or above, since lossy compression is least forgiving exactly where edges are sharpest. If you need a guaranteed pixel-perfect result, PNG remains the correct format and no conversion will beat it.
Browser support is a solved problem. Every current version of Chrome, Firefox, Safari and Edge handles WebP. The old advice about needing a PNG fallback has been obsolete for years. The remaining gap is non-browser software — if the file is going to a print shop or into older design tools, keep the PNG.
Practical rule. Web page images: convert to WebP. Files you are sending to a person or a printer: leave as PNG or use JPG. Archival originals: keep the PNG.
Conversion runs in your browser; nothing is uploaded.
Questions
Is transparency preserved?
Yes. WebP supports an alpha channel, so logos and cutouts convert cleanly — unlike JPG, which would flatten transparency onto a solid colour.
Do all browsers support WebP?
Yes, every current version of Chrome, Firefox, Safari and Edge. The advice about needing PNG fallbacks is long obsolete.
How much smaller will my files be?
Typically 25–35% for graphics, and often 80% or more for photographic content that was stored as PNG.
Should I use it for logos with sharp edges?
You can, but raise the quality to 95 or above — lossy compression is least forgiving on hard edges. For guaranteed pixel-perfect results, keep the PNG.