About converting PNG to WEBP
Convert PNG to WEBP online for free - the conversion happens locally in this tab, so your file never gets uploaded to a server. PNG is a lossless raster format with a full alpha channel, which makes it the default for screenshots, logos, icons and any artwork that needs clean transparent edges. WebP is Google's modern web format, supporting both lossy and lossless modes plus transparency, and typically lands 25-35% smaller than JPG or PNG at matching quality.
Moving from PNG to WEBP is normally a size-versus-compatibility decision: you are either shrinking assets to speed up a page, or stepping back to a format that a particular editor, CMS or device will actually accept.
Because every conversion runs on your own device through WebAssembly builds of the same open-source engines desktop tools use, there is no upload queue, no file-size cap imposed by a server, and no copy of your PNG sitting in someone else's storage afterwards. That matters most for anything you would hesitate to hand to a third party - identity documents, contracts, medical scans, unreleased work, client material. It also means the converter keeps working with no network connection at all once the page has loaded.
PNG to WEBP is one of many routes available here. If a direct path between two formats does not exist, the converter automatically chains several conversions together to reach the one you asked for, so you can get from almost any input to almost any output in a single step.
How to convert PNG to WEBP
- Drop your PNG file onto the area above, or click it to browse for one.
- Confirm that "Convert from:" reads PNG - it is detected from your file automatically.
- Check that "Convert to:" is set to WEBP. It is already pre-selected on this page.
- Press Convert, then save the converted image when it is ready.
Frequently asked questions
- Is this PNG to WEBP converter free?
- Yes, completely. There is no charge, no account, no watermark on the output and no daily conversion limit.
- Are my files uploaded to a server?
- No. The conversion runs in your browser using WebAssembly, so your PNG file never leaves your device and nothing is stored anywhere after you close the tab.
- Is there a file size limit for PNG to WEBP conversion?
- There is no server-imposed limit, because there is no server involved. The practical ceiling is your own device's available memory, so very large files convert faster on a desktop than on a phone.
- Will the WEBP output look the same as the PNG original?
- It depends on the target format. WEBP output is produced at high quality settings, but converting into a lossy format always discards some data by design, and re-encoding an already-lossy file compounds that. Convert from the highest-quality source you have rather than from a previously converted copy.
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