JPG vs WebP: Which Is Better for Websites?
JPG is universal, WebP is smaller. Here's how the two formats compare on size, quality, transparency and compatibility — and when to use each.
What Is JPG?
JPG, also written as JPEG, is one of the most widely used image formats in the world. It uses lossy compression, which reduces file size by removing some image data that is difficult for the human eye to notice.
JPG is supported by virtually every device, browser, photo app, printer and website platform.
What Is WebP?
WebP is a modern image format developed by Google. It supports lossy and lossless compression, transparency and animation. For many web images, WebP delivers a smaller file size than JPG at comparable visual quality.
JPG vs WebP: Key Differences
| Feature | JPG | WebP |
|---|---|---|
| Compression | Lossy | Lossy and lossless |
| File size | Standard | Usually smaller |
| Transparency | No | Yes |
| Animation | No | Yes |
| Compatibility | Universal | Excellent on modern browsers |
| Best for | Universal sharing and printing | Fast websites and web performance |
When Should You Use JPG?
Use JPG when maximum compatibility is your priority. JPG is ideal for sharing photos, uploading to platforms that do not accept WebP, printing images and sending files to older devices.
JPG is also a safe default format when you do not know which image formats a website, app or recipient supports.
When Should You Use WebP?
Use WebP for website images where loading speed matters. WebP can significantly reduce image file sizes, which helps pages load faster and use less bandwidth.
WebP is especially useful for blog images, product photos, hero images, thumbnails and other visual content on performance-focused websites. For transparent graphics, compare it with PNG in our PNG vs WebP guide.
How to Convert JPG to WebP
FormatFlash lets you convert JPG to WebP directly in your browser. Images are processed locally, so they are not uploaded to a server.
- Open the JPG to WebP converter.
- Select or drag your JPG file into the converter.
- Choose WebP as the output format.
- Start the conversion.
- Download your optimized WebP image.
Need the opposite direction? Use the WebP to JPG converter or read our guide on converting WebP to JPG.
Frequently asked questions
Is WebP better than JPG?
For web performance, WebP is usually better because it creates smaller files. For universal compatibility, JPG is still the safer choice.
Does WebP lose quality?
WebP can use lossy compression, but at appropriate quality settings the difference is usually hard to notice.
Does WebP support transparency?
Yes. Unlike JPG, WebP supports transparent backgrounds.
Should I convert all JPG images to WebP?
For website images, converting JPG to WebP is usually a good idea. Keep JPG versions when compatibility or printing is important.
Related guides
- PNG vs WebP: which image format should you use?
- How to convert WebP to JPG on Windows, Mac and iPhone
Make your website images lighter
Use the free JPG to WebP converter — no upload required.