ICO to PNG
Unpacking icon bundles
An ICO stores multiple bitmap depths; exporters typically emit the largest embedded frame as PNG for editing. Use this when you inherit a site package with only favicon.ico and need source art for rebranding.
Quality reality
If only 16×16 entries exist, upscaling will never recover detail—request vector masters from design. After edits, rebuild via PNG to ICO with fresh multi-size renders.