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

Choosing an image format sounds technical, but it comes down to three practical questions: Is it a photo or a graphic? Does it need transparency? Does it need to work everywhere? Answer those and the choice is usually obvious.

JPG — for photographs

JPG has been the web's photo format for decades. It uses lossy compression tuned for the smooth tones and gradients found in real-world photos, and it's universally supported. Its weaknesses: it can't store transparency, and it adds visible artifacts around sharp edges and text, which makes it a poor fit for logos or screenshots.

PNG — for graphics and transparency

PNG is lossless, so it keeps every pixel exactly. That makes it ideal for logos, icons, screenshots, and anything with crisp edges or text. It also supports full transparency, which JPG can't. The downside is size: a photo saved as PNG can be several times larger than the same photo as JPG, so PNG is the wrong tool for photographs.

WebP — the modern all-rounder

WebP is the newer format that does both jobs well. It offers lossy compression (like JPG) that's typically 25–35% smaller at the same quality, and lossless compression with transparency (like PNG) that's usually smaller too. Every current browser supports it.

For most websites in 2026, WebP is the sensible default for both photos and graphics. The main reason to avoid it is compatibility with very old software that predates its support.

Quick rules

• Photograph for the web → WebP (or JPG if you need maximum compatibility).
• Logo, icon, or screenshot → WebP lossless (or PNG for the widest support).
• Needs transparency → WebP or PNG, never JPG.
• Print or archival master → keep the original (often PNG or TIFF).

Converting between these formats takes a couple of seconds and, with browser-based tools, happens entirely on your device. When in doubt, convert a copy to WebP and compare — you'll usually keep the quality and shed a third of the size.