How to use the PNG to WebP Converter
- Drop one or more PNG files on the box, or click it to choose them.
- Adjust the quality slider (85 % is a good default).
- Optionally set a maximum width to resize while converting.
- Download each image, or all of them as a ZIP.
Why convert PNG to WebP?
WebP supports transparency like PNG, but compresses far better. Lossy WebP is typically 60–80 % smaller than an equivalent PNG for photos and complex graphics, and lossless WebP is usually around 25 % smaller than PNG. That makes PNG to WebP one of the easiest ways to improve page speed and Largest Contentful Paint.
PNG vs WebP
| PNG | WebP | |
|---|---|---|
| Full name | Portable Network Graphics | WebP (Google, based on VP8) |
| Compression | lossless | lossy and lossless |
| Transparency | Yes | Yes |
| Animation | only as APNG | yes |
| Typical size | large for photos (often 5–10× a JPG) | about 25–35 % smaller than JPG at similar quality |
| Best for | screenshots, logos, icons, UI graphics and anything with text or sharp edges | web images of every kind — photos, graphics and transparent images |
| Weak at | photographs, where files become very large | older desktop software and some email clients, which cannot open it |
| Support | every browser, OS and app | all current browsers; Windows 10+, macOS 11+, recent Photoshop |
Transparency
Both formats support an alpha channel, so transparent areas are kept. Tick Flatten transparency if you want a solid background instead.
Choosing the quality
WebP is lossy, and the quality slider controls the trade-off. 80–90 % is visually indistinguishable from the original for most photos; 60–75 % is fine for thumbnails and backgrounds; above 92 % file size grows quickly for little visible gain. The table shows the before and after size for every file, so you can adjust and compare instantly.
Private, batch conversion
Conversion uses your browser’s own image decoder and the HTML canvas, so files are never uploaded — useful for personal photos, client work and screenshots with sensitive data. Drop as many files as you like, then download them one by one or all together as a ZIP. You can also set a maximum width to resize large images while converting. Need smaller files without changing the format? Use the image compressor; to change dimensions only, use the image resizer.
Tools that pair well with the PNG to WebP Converter
- JPG to WebP Converter — Convert JPG photos to WebP to make pages load faster — usually a quarter to a third smaller with no visible difference.
- WebP to PNG Converter — Turn WebP images saved from websites into PNG files that open in any app, editor or upload form — with transparency preserved.
- Image to Base64 — Turn a PNG, JPEG, SVG, WebP or GIF into a Base64 data URI with copy-ready CSS and HTML — or paste a Base64 string to preview and download the image.
- Favicon Generator — Make a complete favicon package from a logo, a letter or an emoji: a multi-size favicon.ico, Apple touch icon, Android/PWA icons, a Webflow webclip, the web manifest and the HTML tags to paste.