OOmniMindHub

WEBP vs PNG vs JPG — Which Format to Use, and When

How the three main web image formats differ, which one fits each situation, and how to convert between them right in your browser.

O
OmniMindHub2026-07-11 · 5 phút đọc

The same photo can differ in size by several times depending on the format you save it in. Here's a rundown of the three most common web formats and how to choose between them.

JPG — best for photos

Lossy compression packs photos and complex gradients into small files. It doesn't support transparency. For everyday photos — people, landscapes — it's the default choice.

PNG — transparency and crisp graphics

Lossless compression makes it great for images with sharp edges — logos, icons, screenshots — and it supports transparent backgrounds. The trade-off: photos saved as PNG get heavy.

WEBP — the modern default for the web

At the same visual quality, WEBP comes out roughly 25–35% smaller than JPG, while also supporting transparency and animation. Every modern browser supports it, so if the goal is publishing to the web, it deserves first consideration.

Quick recommendations

  • Regular photos → JPG or WEBP
  • Logos, icons, transparent backgrounds → PNG or WEBP
  • Images going on a web page → WEBP

TipFor print or archival, stick with lossless (PNG) or the original format. For web publishing, WEBP usually comes out ahead.

Converting in the browser

Drop a file into the image converter, pick the target format and quality, and you're done. The estimated output size is shown before you convert, so you can compare options at a glance.

Try different formats and quality settings and compare the estimated sizes.

Open Image Converter