What Are WebP and JPG?
JPG (also written JPEG) has been the dominant web image format since the 1990s. It uses lossy compression to shrink photos and complex images. Almost every camera, phone, and piece of software on the planet produces JPG files by default.
WebP is a modern image format released by Google in 2010 and widely adopted after 2018. It supports both lossy and lossless compression, transparency (like PNG), and animations (like GIF). It was specifically designed to be the successor to JPG for the web.
WebP vs JPG: File Size
This is where WebP wins decisively. According to Google's own benchmarks, WebP lossy images are 25–34% smaller than JPG at equivalent quality. Real-world results are often more dramatic — 60–80% smaller for typical web images.
Why does this matter? Smaller images mean faster page loads. Faster pages rank higher on Google (Core Web Vitals). Faster pages convert better — studies show a 1-second delay reduces conversions by 7%.
Google's Core Web Vitals report ranks LCP (Largest Contentful Paint) as a top ranking factor. Images are the LCP element on most pages. WebP is the fastest path to a good LCP score.
WebP vs JPG: Image Quality
At the same file size, WebP produces noticeably better quality than JPG. At the same quality level, WebP produces a much smaller file. This is not a trade-off — it's a pure win.
The difference is most visible in images with gradients, text, and fine details. JPG compression creates 'blocking' artifacts in these areas. WebP handles them more cleanly.
WebP vs JPG: Browser Support in 2026
WebP is supported by 97%+ of browsers globally. This includes Chrome, Firefox, Safari 14+, Edge, Opera, iOS Safari, and all major Android browsers. Internet Explorer is the main exception — but IE has under 1% global market share in 2026.
For practical purposes, you can use WebP for all web images without fallbacks.
WebP vs JPG: When to Use Each
Use WebP for almost everything on the web. Use JPG only in these specific cases:
- WebP: Website product images, blog photos, hero banners, thumbnails
- WebP: Social media uploads (platforms accept WebP)
- JPG: Print production (WebP is not suitable for print workflows)
- JPG: Email marketing images (some email clients still don't render WebP)
- JPG: Legacy software or CMS that doesn't support WebP uploads
WebP vs PNG: What About Transparency?
WebP supports transparency (alpha channel), just like PNG. If you need transparent backgrounds, WebP is actually better than PNG — lossless WebP files are 26% smaller than equivalent PNG files. You don't need to use PNG for transparency anymore.
How to Convert JPG to WebP
The easiest way to convert JPG to WebP is with a free online tool. BatchSet converts any JPG, PNG, GIF, or TIFF to WebP in seconds — with quality control, resize options, and bulk conversion support.
Convert your images to WebP free — 30 credits on signup, no card needed.
Free to start — no credit card required.
Frequently Asked Questions
Is WebP better than JPG?
Yes, for web use. WebP files are 60-80% smaller than JPG at the same visual quality. WebP also supports transparency and animation. The only reason to use JPG over WebP is for print production or legacy software compatibility.
Does WebP lose quality compared to JPG?
No. At equivalent quality settings, WebP produces smaller files with equal or better quality. The compression is simply more efficient. At quality 80, a WebP looks equal to a JPG quality 90, at half the file size.
Can I use WebP on my website instead of JPG?
Yes. WebP is supported by 97%+ of browsers in 2026, including all modern Chrome, Firefox, Safari, and Edge versions. You can safely use WebP for all web images.
Does Google prefer WebP for SEO?
Google doesn't explicitly prefer WebP as a format, but WebP images are smaller, which means faster page loads and better Core Web Vitals scores. Better Core Web Vitals = higher rankings. So switching to WebP indirectly improves SEO.
How do I convert JPG to WebP for free?
Use BatchSet's free Image Converter. Upload your JPG, select WebP as the output format, set quality (75-85 recommended), and download. You get 30 free conversions per month — no credit card needed.