Systems, methods and computer readable medium described herein relate to techniques for automatic type inference from machine code. An example technique includes receiving a machine code of a program, generating an intermediate representation of the machine code, generating a plurality of type constraints from the intermediate representation, generating one or more inferred types based at least upon the plurality of type constraints, converting the generated inferred types to C types, updating the intermediate representation by applying the inferred types to the intermediate representation, and outputting said inferred types, said converted C types, and/or at least a portion of the updated intermediate representation.