Convert PNG to WebP
Shrink PNG images into modern, lightweight WebP files.
Drop an image here or click to choose
processed on your device — never uploaded
WebP was designed to replace both PNG and JPG on the web, and for PNG it usually succeeds by a wide margin: the same screenshot or graphic typically lands at a quarter to a half of the size, with transparency intact. That is the whole appeal. A site that swaps its PNG assets for WebP loads faster, scores better on Core Web Vitals and spends less bandwidth, with no visible difference to visitors. Every current browser, including Safari since 2020, displays WebP.
The conversion runs in your browser rather than on a server, so a UI mock-up under NDA or an unreleased product image is not uploaded anywhere. Pick WebP as the output, drop the PNG, download the result. Transparent areas stay transparent, which is the difference between this and converting to JPG, where they would be flattened to white.
The honest limit is not quality but acceptance. Some older tools and places still refuse WebP: older versions of desktop software, certain email clients, some upload forms on government and corporate sites, and a few CMS installations that need a setting changed. Check that the destination takes WebP before converting a whole folder, and keep the PNG originals, since converting back later would mean a second generation of compression. For anything that lives on your own website, WebP is the safe default.
More sizes & options
- Convert Image (JPG / PNG / WebP) — all options
- Convert PNG to JPG
- Convert JPG to PNG
- Convert WebP to JPG
- Convert WebP to PNG
- Convert JPG to WebP
- Convert AVIF to JPG
- Convert AVIF to PNG
- Convert BMP to JPG
- Convert Image to JPG — Free & Private
- Convert Image to PNG — Free & Private
- Convert Image to WebP — Free & Private
Frequently asked questions
- Is WebP good for websites?
- Yes — it's smaller than PNG/JPG at similar quality, so pages load faster, which helps user experience and SEO.
- Does WebP keep transparency?
- Yes — WebP supports transparency just like PNG, so it's a great lightweight replacement.
- Is the WebP produced here lossless like the PNG was?
- No. The browser's WebP encoder produces a lossy file at high quality, which is why it is so much smaller. For photos and screenshots the difference is not visible at normal size; keep the PNG as your master copy.
- Will WebP work in email newsletters and Word documents?
- Not reliably. Several email clients and older office versions do not render WebP. Use WebP on web pages and keep JPG or PNG for attachments, documents and newsletters.
Guides
- Image compression explained: JPG, PNG, WebP, and how to hit an exact file size Why a photo is 4 MB, what actually makes it smaller, the real differences between JPG, PNG and WebP, and how to get a file under 100 KB or 200 KB for a form without it turning to mush.
- HEIC: why iPhone photos will not open on Windows, and every way to fix it Since 2017 iPhones save photos as HEIC, a format half the size of JPG that Windows, many websites and most printers cannot read. What HEIC is, what you lose by converting, the iPhone settings that avoid the problem, and how to convert without uploading.
Related tools
🔒 Your files are processed on your device. This tool runs entirely in your browser — nothing is uploaded.