OverrunShield is a set of browser-based tools for planners and project controls teams on construction and infrastructure projects. Open a Primavera P6 XML or XER file without P6, run a DCMA 14-point and earned value check, compare a baseline with an update, or rate up to five schedules side by side. Contract tools cover FIDIC, NEC4 and JCT time bars, delay notices and EOT claims. Free tools need no card or account; paid exports are one-time payments.