Image Converter · local browser tool
Convert PNG to WebP Online
Convert PNG graphics and screenshots to WebP in your browser. WebP can make web assets smaller, and the browser encoder keeps an alpha channel when the source image has transparency.
LOCAL CONVERTER
PNG → WebP
Your PNG to WebP settings are ready. Add images, convert, then download the verified output.
Local processing on your device. HEIC support loads after selection.
NATIVE PRODUCTS
Convert images often?
The web converter stays free and useful on its own. The Android app and JPG Image Converter Chrome extension are now available, while the iOS version is coming soon with its own platform workflow.
How to convert PNG to WebP
- Select or drop your PNG images.
- Adjust the available quality or background options.
- Press Convert.
- Download the verified WebP images.
Why convert PNG to WebP?
Get a WebP asset ready for modern web delivery while keeping PNG transparency when present. Use the quality control to tune the result for your site.
PNG vs WebP
| Topic | PNG | WebP |
|---|---|---|
| Compression | Lossless | Lossy in this web converter |
| Transparency | Supported | Supported |
| Typical use | Graphics, screenshots and editing | Web delivery and smaller assets |
| Compatibility | Very broad | Broad in modern browsers and software |
| Output size | Often larger | Often smaller, depending on quality |
When should you convert PNG to WebP?
- You are optimizing transparent web graphics for browser delivery.
- You want a smaller alternative to a PNG while retaining its transparent background.
- A website or CMS accepts WebP and you want to convert a batch of existing PNG assets.
Privacy
Image Converter is a free browser tool for converting JPG, PNG, WebP and supported HEIC/HEIF images with local processing on your device. No account is required. The conversion path uses browser file APIs, an on-demand HEIC decoder when needed, and Canvas; processing stays local to your browser and device. Website analytics, when available, receives only page and converter funnel events without file content or file identity.
Frequently asked questions
Does PNG to WebP keep transparency?
Yes, when the source PNG has an alpha channel. The WebP output keeps transparent pixels instead of applying a JPG-style background.
Is PNG to WebP lossless?
This browser converter uses lossy WebP output. It can be smaller, but it is not a pixel-for-pixel lossless replacement for the PNG.
Is WebP better than PNG for websites?
It depends on the image and browser support you need. WebP is often smaller for web delivery, while PNG remains a broadly compatible lossless choice.