  We announce FluxCT, a web tool for identifying contaminating flux in Kepler
and TESS target pixel files due to secondary visual sources. We demonstrate the
usage of this tool and discuss the benefits of this tool over a simple Gaia
radius search. FluxCT focuses on clarity and simplicity, where the only input
needed from the user is a KIC or TIC ID. By more appropriately accounting for
the actual shape of the photometric pixel apertures, FluxCT can produce much
more accurate estimates of contaminating flux than simple radial cone searches.
