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Convert PNG to WebP
WebP is the practical default for images on the web: it keeps transparency, every current browser supports it, and files are meaningfully smaller than PNG.
How to convert PNG to WebP
Drop your PNG files onto the panel above and press Convert. A whole folder at once is fine, and the WebP files download individually or as a single ZIP.
Quality is the one setting worth a glance, and 85 or above is visually indistinguishable from the original for photographs. Conversion here runs at maximum quality by default, so you only need to touch it if a smaller file matters more than fidelity — and if it does, compressing afterwards gives you finer control.
Nothing is uploaded. The decoders and encoders run as WebAssembly inside this page, which is why there is no file-size limit, no queue, and no copy of your image on anyone's server.
Why convert PNG to WebP?
WebP is the practical default for images on the web: it keeps transparency, every current browser supports it, and files are meaningfully smaller than PNG.
Converting a set of PNGs is one of the quickest page-weight wins available.
| PNG | WebP | |
|---|---|---|
| Compression | Lossless | Lossy or lossless |
| Transparency | Yes, full alpha channel | Yes |
| Animation | No (APNG exists but is rarely used) | Yes |
| Support | Universal | Every current browser (Chrome, Edge, Firefox, Safari 14+ since 2020) |
| Best for | Logos, icons, screenshots, diagrams, anything needing transparency | Images on the web, where it is the safest modern default |
What WebP does to file size
Photographic PNGs typically drop by 70% or more.
Flat graphics and screenshots save less, but usually still shrink.
WebP output here is lossy, but the conversion runs at maximum quality, so the re-encode is as faithful as WebP allows — including for screenshots, diagrams, and anything containing text.
Frequently asked questions
How do I convert PNG to WebP?
Drop your PNG files above, choose WebP as the output, and press Convert. The files are decoded and re-encoded at maximum quality inside your browser, then download individually or as a ZIP — no upload, no account, no watermark.
Does converting PNG to WebP lose quality?
WebP is a lossy format, so the image is re-encoded — at maximum quality, where the difference is imperceptible for photographs. WebP output here is lossy, but the conversion runs at maximum quality, so the re-encode is as faithful as WebP allows — including for screenshots, diagrams, and anything containing text.
Can I just rename the file to .webp?
No. The extension only labels the file, while the bytes inside follow the structure of a specific format. Renaming produces a file most software refuses to open. A real conversion decodes the image and re-encodes it in the new format, which is what happens here.
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