WebP is the format many websites use to shrink images without giving up transparency. Unlike JPG, a WebP can keep a see-through background, so it can replace PNG logos, icons and cut-outs as well as photographs. Converted from PNG, photographic images are commonly a fraction of the original size, which helps pages load faster and improves page speed scores.
Choose High or Max for graphics with text or fine edges, and Medium or Low for large photographs where file size matters most. Transparent pixels are preserved. Browser support is excellent: Chrome, Edge, Firefox and Safari 14 and later all display WebP. Some older desktop software, email clients and print services still do not, so keep the PNG original for those uses.
Each file keeps its name with only the extension changed, the pixel dimensions stay the same, and no metadata or watermark is added. Add as many PNG files as you need and download them together as one ZIP. The conversion runs in your browser, so nothing is uploaded.
Tip for websites: serve the WebP version to visitors and keep the PNG as your source file. Large banners and product photos usually benefit most, while tiny icons gain little. Check a few converted images at their real display size before replacing a whole folder.
Yes. WebP supports an alpha channel, so transparent and semi-transparent areas are preserved.
It depends on the image. Photographs usually see the largest savings, while small flat graphics may shrink only a little. Try High first, then lower the quality if you need a smaller file.
All current versions of Chrome, Edge, Firefox and Safari, including Safari 14 and later on iPhone, iPad and Mac.
Keep them. A PNG is a lossless master you can re-export from, and some software and email clients still cannot open WebP.
No. The conversion runs entirely in your browser.