RESIZELAB

JPG vs PNG vs WEBP: Which Image Format Should You Use?

Picking the right image format affects both how your image looks and how fast it loads. Here's a breakdown of the three most common formats, so you can choose confidently.

JPG (JPEG)

JPG is the most widely used format for photographs. It uses "lossy" compression, meaning it discards some image data to shrink file size — the more you compress, the smaller the file, but the more detail is lost. For most photos, moderate compression is invisible to the eye while cutting file size significantly. JPG does not support transparency.

PNG

PNG uses "lossless" compression, so no image data is discarded — this makes it ideal for logos, icons, screenshots, and graphics with sharp edges or text. Its biggest advantage is support for transparent backgrounds. The trade-off is larger file sizes, especially for photographic content.

WEBP

WEBP is a modern format developed for the web. It typically produces smaller files than both JPG and PNG at a similar visual quality, and it supports transparency like PNG. Most modern browsers support WEBP well, making it a strong default choice for websites where load speed matters.

Quick decision guide

• Uploading a photo to social media? Use JPG.
• Need a transparent background (logo, icon)? Use PNG.
• Building a website and want fast load times? Use WEBP.
• Not sure? WEBP is a safe modern default for most web use cases.

You can convert any image between JPG, PNG, and WEBP directly in your browser with ResizeLab — no software, no uploads, just pick your format and download.