When WebP makes more sense than JPG or PNG
By the Converterzilla Team
We build privacy-first PDF and image tools that run entirely in your browser. Our team has shipped JavaScript file-processing apps used by thousands every day, and we write here about the libraries, trade-offs and patterns we use.
WebP is Google's image format from 2010. It compresses 25-35% better than JPG at equivalent quality and supports transparency like PNG. Browser support is now universal. Yet most people still default to JPG and PNG — partly because old habits die hard, partly because WebP support outside the browser is uneven.
Use WebP when…
- Images are going on a website and SEO/page speed matters
- You want transparency at smaller file sizes than PNG
- The audience is browsing on mobile (data costs)
Skip WebP when…
- The image is for email — some clients (esp. corporate Outlook) don't render WebP
- You're sharing files into design software like Photoshop — newer versions handle it, older ones don't
- You're posting to a printer — most print pipelines expect JPG/PNG
The lossy/lossless trick
WebP supports both lossy (like JPG) and lossless (like PNG) compression. For a photo, use lossy. For a graphic, use lossless. Most converters pick the right mode based on the input.
Our universal converter will export any image to WebP in your browser — no upload, no quality loss beyond your chosen setting.