Convert PNG images into smaller, modern WebP files, right in your browser. Nothing is uploaded.
PNG is a lossless format that keeps images pixel-perfect, which is wonderful for quality but means the files can be large, especially for detailed graphics and photos. WebP is Google's modern format built to shrink images for the web while still supporting transparency. Converting PNG to WebP is how you keep the look and the see-through background but cut the file size, often dramatically, so pages load faster and storage goes further.
To use it, load one PNG or a batch and each is re-encoded as a WebP you can download, with your originals untouched. WebP can compress in a lossy way for the smallest size or in a lossless way that matches PNG exactly at a still-smaller file, and either way any transparency in the PNG is preserved. Pick the WebP for anywhere modern browsers will view it.
The trade-off is compatibility rather than quality. WebP typically produces a much smaller file than PNG at a visually similar result, and it keeps transparency, which JPG cannot. The catch is that a small number of older programs and legacy tools still cannot open WebP, so it is ideal for the web but not always for sending to someone on very old software.
Choose WebP when the destination is a modern website, app, or browser and size matters, which covers most online use. Keep PNG when you need guaranteed compatibility with older tools or a strictly lossless master for editing. If you need the widest reach for an ordinary photo without transparency, JPG is the fallback, though it drops the see-through background.
People use this to slim down website images for faster pages, to shrink a folder of transparent logos and icons, to save storage on large PNG exports, and to prepare assets for apps that recommend WebP.
The conversion runs entirely in your browser using the device's own encoder, so nothing is uploaded and no account is needed. It is free, and the only real limit is your device's memory, which only matters with very large files. Your images stay on your own machine throughout.
Yes, WebP supports transparency, so a PNG with a see-through background keeps it after conversion. That is a key advantage over JPG, which cannot hold transparency. Your logos and icons stay transparent in the WebP.
WebP is usually significantly smaller than the same image as PNG, often by a large margin, especially for detailed graphics. The exact saving depends on the image and whether lossy or lossless WebP is used. Either way the file is typically much lighter for web use.
WebP can be either, offering a lossless mode that matches PNG at a smaller size and a lossy mode that shrinks even more by discarding a little detail. Lossless suits graphics that must stay exact, while lossy suits photos where size matters most. Pick based on how much fidelity you need.
Most modern browsers, phones, and image apps support WebP, but some older software and legacy tools still cannot. For the web it is safe, but for sending to someone on very old programs, PNG or JPG is more reliable. Consider the recipient before choosing.
Choose WebP when you need transparency or the smallest modern file, and JPG when you need the broadest compatibility for a plain photo. WebP keeps transparency and is usually smaller, while JPG opens absolutely everywhere but flattens transparency. Your priorities decide it.
The pixel dimensions stay the same, only the file format and its byte size change. If you also want fewer pixels, resize the image separately. Conversion and resizing are independent operations.
Polished Pixels. All tools. About. Contact. Every tool runs in your browser and your files are never uploaded.