Free Image Converter

Yes. JPEG does not support transparency, so transparent areas in your PNG will be replaced with a white background during conversion. If you need to keep transparency, convert to WebP instead, which supports alpha channels at smaller file sizes than PNG.

PNG uses lossless compression — it stores every pixel exactly as-is, making it ideal for graphics and screenshots but inefficient for photographs. JPEG discards subtle detail the eye cannot easily detect, resulting in files 5–10× smaller for photos.

WebP is better for websites. It supports full alpha transparency (like PNG) but produces files 25–35% smaller. All modern browsers support WebP. PNG remains a good fallback for older browsers and for software that does not yet support WebP.

Yes. Screenshots are often saved as PNG, but if they contain photographs or complex graphics rather than text and UI elements, converting to JPEG can reduce the file size substantially. Screenshots with sharp text are better left as PNG to avoid JPEG compression artefacts on text edges.

PNG to JPEG conversion is lossy — some subtle detail is discarded. At 90–95% JPEG quality, the difference is imperceptible for photographs. For images with sharp edges, text, or flat colours, the artefacts may be more visible, so keep those as PNG or convert to WebP.