You downloaded an image from a website and it saved as .webp instead of .png or .jpg. Now your image editor won't open it, you can't upload it somewhere, or you need a format that preserves transparency without the compatibility headaches.
This guide explains what WebP is, why it causes problems, and how to convert WebP to PNG quickly — with transparency fully preserved.
What Is WebP?
WebP is an image format developed by Google in 2010. It was designed to replace both JPG and PNG on the web by offering smaller file sizes at comparable visual quality. WebP supports both lossy compression (like JPG) and lossless compression (like PNG), as well as transparency and animation.
Google Chrome, Edge, Firefox, and Safari all support WebP natively. When you right-click and save an image from most modern websites, there's a good chance it downloads as WebP rather than the traditional PNG or JPG.
Why Convert WebP to PNG?
Despite strong browser support, WebP still causes friction in several common scenarios:
- Image editing software — older versions of Photoshop, GIMP, Affinity Photo, and other editors may not open WebP files without plugins
- Print services — most print shops and on-demand services require PNG or JPG, not WebP
- Social media uploads — some platforms don't accept WebP uploads
- Document embedding — Microsoft Office and Google Docs handle PNG and JPG better than WebP
- Archival purposes — PNG is a more established, universally supported format for long-term storage
- Transparency needs — while WebP supports transparency, PNG is the standard transparent format that works everywhere
WebP vs PNG: Key Differences
| Feature | WebP | PNG |
|---|---|---|
| Compression | Lossy or lossless | Lossless only |
| Transparency | Yes | Yes (alpha channel) |
| File size | Smaller (25-35% vs PNG) | Larger |
| Browser support | All modern browsers | Universal |
| Software support | Limited in older tools | Universal |
| Animation | Yes | No (use APNG) |
| Color depth | 8-bit | Up to 48-bit |
How to Convert WebP to PNG with BestPNG
The fastest way to convert WebP to PNG is with BestPNG's free converter. It runs entirely in your browser — no upload to a server, no file size limits.
Step-by-step:
- Go to bestpng.com/tools/webp-to-png
- Drag and drop your WebP file (or click to browse)
- The tool converts it instantly in your browser
- Download the PNG file
What gets preserved:
- Full transparency (alpha channel) is maintained
- Original resolution stays the same
- Color accuracy is preserved — no quality loss
Batch conversion: You can drop multiple WebP files at once and download them all as PNG.
Does Converting WebP to PNG Increase File Size?
Yes. PNG files are typically 25-35% larger than their WebP equivalents because PNG uses less aggressive compression. This is the tradeoff for universal compatibility.
Here's a rough comparison for common image types:
| Image Type | WebP Size | PNG Size | Increase |
|---|---|---|---|
| Photo (1920x1080) | ~200 KB | ~800 KB | ~4x |
| Logo with transparency | ~15 KB | ~25 KB | ~1.7x |
| Screenshot with text | ~80 KB | ~120 KB | ~1.5x |
| Simple icon | ~3 KB | ~5 KB | ~1.7x |
For web publishing, WebP's smaller size is an advantage. For everything else — editing, printing, sharing, archiving — PNG's universal compatibility usually matters more than file size.
Does the Conversion Lose Quality?
No. Converting from WebP (lossless) to PNG is a lossless-to-lossless process. No image data is discarded.
If the original WebP was saved with lossy compression, converting to PNG won't recover the quality that was already lost — but it won't degrade it further either. The PNG output will be a perfect copy of what the WebP file contained.
When to Keep WebP Instead
There are cases where WebP is the better choice:
- Web development — if you're building a website, WebP reduces page load time and bandwidth
- Storage optimization — when you need to store thousands of images and space matters
- Animated images — WebP animations are more efficient than GIF and supported in all major browsers
For web use, consider keeping your images as WebP and only converting to PNG when you need compatibility with specific software or services.
Other Format Options
If PNG isn't the right target format for your needs, BestPNG offers other conversions too:
- Convert WebP to JPG — smaller files, but loses transparency
- Convert to any format — supports PNG, JPG, WebP, AVIF, and more
- Remove background from any image — outputs a transparent PNG
Frequently Asked Questions
Does WebP to PNG conversion preserve transparency?
Yes. Both WebP and PNG support full alpha channel transparency. When you convert a transparent WebP to PNG, the transparency is completely preserved.
Can I convert multiple WebP files to PNG at once?
Yes. BestPNG's WebP to PNG converter supports batch conversion — drop all your files and download them together.
Why do websites save images as WebP instead of PNG?
WebP files are significantly smaller than PNG, which means faster page loads and lower bandwidth costs. Most websites now serve WebP by default because all modern browsers support it.
Is there any quality difference between WebP and PNG?
When both use lossless compression, the visual quality is identical. The only difference is file size — WebP is smaller. If the WebP file was saved with lossy compression, it may have slightly lower quality than a lossless PNG of the same source image.
Can I convert WebP to PNG on my phone?
Yes. BestPNG works in any mobile browser. Open bestpng.com/tools/webp-to-png on your phone, upload the WebP file, and download the PNG.
Conclusion
WebP is efficient for web delivery, but PNG remains the universal standard for compatibility, editing, and sharing. When you need a WebP file in PNG format, BestPNG's free converter handles it instantly in your browser with no quality loss and full transparency support.