A system for performance testing of scalability implementations and testing of stability in blockchain database implementations. The testing system comprises a cluster of private blockchain nodes instantiated on a network and a control console that allows the user to set the number of nodes in the network and the number of clients for testing of a particular blockchain implementation. Performance metrics are established and tested. The test system allows for staged testing using generated databases, wallets, and accounts starting with simple 5-node networks, expanding to larger networks, then testing with decreased block validation times, continuing to testing using alternative, faster trust schemes, then testing implementation on divided blockchains, and finally testing on shared blockchains.