Which chemistry toolkits are used?

Squonk can generate a wide range of calculated and predicted properties. A large number of these use ChemAxon or RDKit. A smaller number of services are implemented using CDK or OpenChemLib as a well as a number of open source academic tools.
Often the same calculation or prediction (e.g. cLogP) is available from a number of toolkits allowing them to be compared.

See the Cell Directory for a full list of services.