PNG is lossless and great for graphics, but for photographs it produces unnecessarily large files. Converting PNG to JPG can cut the size by 50–80%, making images far easier to email, upload, or publish. Note that JPG has no transparency, so any transparent areas are filled with a solid background.
Use JPG when the PNG is a photograph or a screenshot of a photo—JPEG’s lossy compression is designed for continuous-tone images and will shrink them dramatically. Avoid converting logos, icons, line art, or anything with sharp text and flat colors, where JPEG artifacts show up and transparency is lost; keep those as PNG or use WebP.
Drop your PNG files in, set the target format to JPG, and choose a quality (85–90 keeps photos crisp). Convert and download individually or as a ZIP. If you need to hit a specific size for an upload limit, enter a target size in KB and the converter will pick the best quality automatically.
JPG cannot store an alpha channel, so transparent pixels are flattened onto a background (typically white). If transparency matters—for example a logo meant to sit on a colored page—convert to WebP instead, which keeps the alpha channel while still being smaller than PNG.
PNG (Portable Network Graphics) is a lossless data compression format. It excels at storing images with transparent backgrounds and high-contrast graphics, making it perfect for logos, icons, and web graphics.
JPEG (Joint Photographic Experts Group) is a widely used lossy compression format for digital images. It is ideal for photographs and complex images where a slight loss of detail is unnoticeable.
For photographic images, JPG is usually 50–80% smaller than PNG at a high quality setting, because JPEG is built for continuous-tone images.
JPG does not support transparency, so transparent areas are filled with a solid color (usually white). Use WebP if you need to keep transparency.
Generally no. Logos and graphics with sharp edges and flat colors look worse as JPG and lose transparency. Keep them as PNG or convert to WebP.
Yes. Set a target size in KB and ImageCompressify finds the highest JPG quality that fits within your limit.