CAPRA is a free and modular platform for risk analysis and decision making, which applies probabilistic techniques to hazard and loss assessment. The platform was designed from the start to be modular and extensible. Hazard information is combined with exposure and physical vulnerability data, allowing the user to determine conjoint or cascade risk on an inter-related multi-hazard basis, distinguishing the platform from previous single hazard analyses. The CAPRA suite of software includes hazard mapping1, risk assessment and cost-benefit analysis tools to support pro-active risk management. CAPRA can also be used to design risk-financing strategies.