PNG to JPG converters change lossless PNG images into compressed JPG files. JPG uses lossy compression that reduces file size by simplifying color data, which is ideal for web delivery where speed matters more than pixel-perfect fidelity.

A typical converter will load your PNG, decode its pixels, and re-encode them with JPG compression. Quality sliders control how aggressively the encoder removes detail. Lower quality means smaller files but more visible artifacts.

When to use: product photos, blog images, and social posts where fast loading is key. Keep PNG for graphics with transparency, UI assets, or sharp text where crisp edges are important.