Why convert PNG to JPG?
PNG (Portable Network Graphics) is a lossless format that stores every pixel exactly and supports transparency, which makes it perfect for logos, screenshots, and graphics with sharp edges. The trade-off is file size: a full-color photograph saved as PNG can be several times larger than the same image saved as JPG. When you need to email a picture, upload it to a website, or attach it to a document, that extra weight slows everything down and can push you past upload limits.
JPG (also written JPEG) uses lossy compression tuned for photographs and natural imagery. By discarding detail the human eye barely notices, it produces dramatically smaller files while keeping photos looking crisp. Converting a PNG photo to JPG routinely cuts the file size by 60–90%, which is why JPG remains the default choice for cameras, social media, and the web.
Pixohub converts PNG to JPG entirely inside your browser using the HTML canvas API. Because there is no server round-trip, conversion is instant, completely private, and works even on slow connections. Transparent areas of the PNG are automatically filled with a white background, since JPG does not support transparency.
PNG vs JPG: which should you use?
Choose PNG when transparency matters or when you need pixel-perfect quality — think icons, UI elements, diagrams, and text-heavy screenshots. Choose JPG for photographs, thumbnails, hero images, and anything where a small file size is more important than perfect fidelity. If you are publishing to the web and the image is a photo, JPG almost always wins on performance.
A common workflow is to keep a master PNG for archiving and export a JPG copy for sharing. With Pixohub you can do exactly that in seconds, and because everything runs locally you can convert sensitive screenshots or private photos without ever uploading them to a third-party service.