Convert JPG to PNG

JPEG (Joint Photographic Experts Group) files are widely used digital image formats that efficiently compress photographs and complex graphics. Using lossy compression, JPGs reduce file size by selectively discarding visual data while maintaining reasonable image quality. They support millions of colors and are ideal for sharing photos online, in emails, or storing digital memories. Common file extensions include .jpg and .jpeg.

PNG (Portable Network Graphics) files are lossless image files that support transparency and millions of colors. Created in 1996 as an alternative to GIF, PNGs excel at displaying sharp graphics, logos, and text-heavy images. They maintain crisp edges and vibrant colors without quality loss during compression. While larger in file size than JPEGs, PNGs are ideal for web graphics requiring transparency or precise detail preservation.

PNG output is useful when you need transparency or want to keep the decoded pixels without further compression loss, such as for graphics, screenshots, or files you will edit again. The tradeoff is size: photographs saved as PNG are often much larger than JPG. For sharing photos where size matters, JPG may be the more practical choice.

PNG files fully support transparency through an alpha channel, allowing both fully transparent and semi-transparent pixels. This makes PNG ideal for logos, icons, and images that need to blend seamlessly with different backgrounds. Unlike JPEG, PNG's lossless compression preserves sharp edges and transparency without quality degradation, though file sizes may be larger. The format supports both binary transparency (fully visible or invisible pixels) and variable transparency levels (partial opacity).

Converting to PNG adds no further quality loss. Framebird decodes the JPG pixels and encodes a new PNG file, and PNG encoding is lossless for those decoded pixels. It cannot restore detail that JPG compression already removed, so any existing artifacts stay. Source metadata is not copied into the new file. The PNG may also be larger than the JPG. Keep your original file.