PNG vs WebP: Which Image Format Should You Use?
Both support transparency — but PNG is lossless and universal while WebP is usually much smaller. Here's how to choose.
What Is PNG?
PNG stands for Portable Network Graphics. It is a lossless image format, which means it preserves every detail of the original image. PNG is especially popular for logos, icons, screenshots, illustrations and images that require transparency.
What Is WebP?
WebP is a modern image format developed by Google. It supports both lossy and lossless compression, transparency and animation. In most cases, WebP creates much smaller files than PNG while maintaining similar visual quality.
PNG vs WebP: Key Differences
| Feature | PNG | WebP |
|---|---|---|
| Compression | Lossless only | Lossy and lossless |
| File size | Larger | Usually much smaller |
| Transparency | Yes | Yes |
| Animation | No | Yes |
| Browser support | Universal | Excellent on modern browsers |
| Best for | Logos, icons, screenshots | Web images and performance-focused websites |
When Should You Use PNG?
Use PNG when you need maximum compatibility or lossless quality. PNG is a strong choice for logos, icons, UI elements, screenshots and graphics with sharp edges or text.
PNG is also useful when you need to edit an image repeatedly without accumulating compression artifacts.
When Should You Use WebP?
Use WebP when page speed and file size matter. WebP is ideal for website images, product photos, blog graphics and images that need transparency but do not require perfect lossless quality.
Because WebP files are smaller, they can reduce bandwidth usage and help pages load faster. Faster-loading pages can improve user experience and support SEO performance. For photos without transparency, see our JPG vs WebP comparison.
How to Convert PNG to WebP
You can convert PNG to WebP directly in your browser with FormatFlash. Your image is processed locally and is not uploaded to a server.
- Open the PNG to WebP converter.
- Select or drag your PNG file into the converter.
- Choose WebP as the output format.
- Start the conversion.
- Download your WebP image.
Need PNG output instead? Use the WebP to PNG converter.
Frequently asked questions
Is WebP better than PNG?
For most website images, yes. WebP usually provides a smaller file size with similar visual quality. PNG remains better when you need lossless editing or maximum compatibility.
Does WebP support transparency?
Yes. WebP supports transparency, making it a good alternative to PNG for logos and graphics.
Can all browsers open WebP?
All modern major browsers support WebP. Very old browsers may not, but compatibility is no longer a major issue for most websites.
Is PNG lossless?
Yes. PNG uses lossless compression, so it preserves the original image data.
Related guides
Make your images smaller
Want smaller images without losing transparency? Convert your files with the free PNG to WebP converter.