ICO to JPG Converter

How ICO to JPG conversion works

A Windows .ico file is a container that can bundle several sizes of the same icon — commonly 16×16 up to 256×256 — each stored either as a raw BMP (BITMAPINFOHEADER + XOR/AND masks) or, for larger sizes, as a fully embedded PNG. This tool reads the icon directory table, measures every embedded frame, and picks the one with the largest pixel area. That frame is decoded, drawn onto a canvas over a white or checkered background (JPEG has no transparency, so any transparent pixels are flattened), and re-encoded as a JPG at the quality you choose. Everything happens locally in your browser — the file is never uploaded anywhere. Going the other direction? Try PNG to ICO or the Favicon Generator.