JPG vs WebP: Which Format Wins on the Web?
WebP beats JPG on file size for photos on the web, usually 25 to 35 percent smaller at similar quality. Learn the real differences and when JPG is still the safer choice.
Show why WebP compresses photos smaller than JPG and when JPG is still the safer, more compatible choice. The verdict for most sites is WebP for delivery with a JPG fallback.
How it works
The short answer
WebP compresses photos 25 to 35 percent smaller than JPG at visually similar quality, and it adds transparency and animation that JPG lacks. Every modern browser can display WebP, so it is the recommended format for photos delivered on the web. JPG remains the choice when you need universal acceptance everywhere, including older tools and email.
How JPG compresses
JPG is a lossy format designed for photographs, removing detail the eye barely notices to shrink the file. It has no transparency and no animation, and every resave loses a little more detail. It is still the most universally accepted image format in existence.
How WebP compresses
WebP uses modern compression from the VP8 video codec, which encodes photos more efficiently than JPG. It supports both lossy and lossless modes, transparency and animation, giving one format the flexibility that used to require JPG plus PNG plus GIF.
File size comparison
For the same photo at the same visible quality, WebP typically measures 25 to 35 percent smaller than JPG. On a photo heavy page that difference can cut total page weight significantly, which speeds up loading and saves bandwidth on mobile connections.
Compatibility
WebP is supported in Chrome, Edge, Firefox and Safari, covering effectively all modern web traffic. JPG is supported everywhere, including legacy systems, email clients and old devices. The safest approach is to serve WebP with a JPG fallback via the picture element.
When to keep JPG
Keep JPG for email attachments, print shops, upload forms that reject WebP, and any system built before WebP support. If you are not sure what accepts the file, JPG is the safe default. Convert to WebP once you control the delivery, such as on your own website.
A practical rule
Serve WebP on your website for photos and keep a JPG copy as a fallback for older clients. For casual sharing to unknown recipients, stay with JPG. Use the converter on this site to produce WebP from JPG in your browser.
Format comparison
| Format | Compression | Transparency | Browser support | Best for |
|---|---|---|---|---|
| JPG.jpg | Lossy (discards some detail) | No | All browsers and devices | Photographs and images with smooth color gradients |
| WebP.webp | Lossy (discards some detail) | Yes | All modern browsers (2011+) | Web images that need both quality and small file size |
Frequently asked questions
Should I replace JPG with WebP?
For web use, yes: WebP is usually 25 to 35 percent smaller at similar quality, with full modern support. Keep JPG for email, print and unknown recipients.
Is WebP supported everywhere?
Every modern browser displays WebP, including Chrome, Edge, Firefox and Safari. Older systems and some email clients still need a JPG fallback.
Does WebP lose quality like JPG?
WebP has a lossy mode that works like JPG, and a lossless mode that keeps every pixel. You choose the mode, which gives more control than JPG alone.
Can WebP replace PNG for transparency?
Yes, WebP supports full transparency and is usually smaller than PNG for the same graphic. If your audience is modern, WebP lossless is a lighter PNG.
How do I convert JPG to WebP?
Use the JPG to WebP converter on this site. It re-encodes the photo locally, lets you pick quality, and downloads the WebP in your browser.