PlanetFlow is an automated, all-in-one post-processing pipeline designed for high-resolution planetary astrophotography. It streamlines the traditional, multi-software workflow into a single execution. The pipeline integrates automated stacking, wavelet sharpening, 3D sphere projection for planetary de-rotation, RGB channel alignment, and sequential GIF generation. By automating notoriously tedious steps like manual de-rotation coordinate matching, PlanetFlow significantly reduces processing time for large batches of planetary video data. The tool is available as standalone executables for both Windows and Linux environments, catering to remote observatory and mini-PC setups.