Picking the wrong image format can make your website slow, your photos blurry or your logo lose its transparent background. Here's a no-jargon comparison of the three formats you'll use 99% of the time: WebP, JPG and PNG.
Quick answer
- Photos on a website → WebP (fallback JPG).
- Photos for email, print or old software → JPG.
- Logos, icons, screenshots, transparency → PNG (or lossless WebP).
Real file-size test
We saved the same 3000×2000 photo in all three formats at visually identical quality: JPG came out at 1.4 MB, WebP at 0.9 MB and PNG at 9.8 MB. For photos, WebP is roughly 30% smaller than JPG, while PNG is many times larger because it's lossless.
JPG: the universal choice
JPG opens everywhere — every phone, printer, email client and editing app. It uses lossy compression, which is perfect for photos but causes visible artifacts around sharp text and lines. It does not support transparency.
PNG: sharp and transparent
PNG is lossless, so text, edges and flat colours stay perfectly crisp. It supports full transparency, making it the standard for logos and cut-out images (like those from a background remover). The trade-off is file size for photographs.
WebP: the modern all-rounder
WebP supports both lossy and lossless compression plus transparency, and is supported by every modern browser. Google recommends it for faster pages and better Core Web Vitals. A few older desktop apps still can't open it, so keep a JPG or PNG copy for sharing.
Comparison at a glance
- Transparency — JPG: no · PNG: yes · WebP: yes.
- Best for photos — WebP, then JPG.
- Best for graphics/text — PNG or lossless WebP.
- Compatibility — JPG and PNG: universal · WebP: all modern browsers.
- Typical size for photos — WebP smallest, PNG largest.
How to switch formats for free
Use Pixnova's free converters — JPG to WebP, PNG to WebP, WebP to JPG, WebP to PNG and more. Every conversion runs in your browser, so it's instant, unlimited and private.
The bottom line
Use WebP for the web, JPG for compatibility and PNG for anything that needs sharp edges or transparency. With a free on-device converter you can always switch in a second.
Ready to try it? Use the free JPG to PNG converter — no signup, no watermark, 100% private. New here? Read about Pixnova, browse the FAQ, or contact Saboor.