Yasm is primarily licensed under the 2-clause and 3-clause «revised» BSD licenses, with two exceptions. The NASM preprocessor is imported from the NASM project and is thus LGPL licensed. The Bit::Vector module used by Yasm to implement Yasm’s large integer and machine-independent floating point support is triple-licensed under the Artistic license, GPL, and LGPL. The full text of the licenses are provided in the Yasm source distribution.

This user manual is licensed under the 2-clause BSD license, with the exception of Глава 2, Глава 3, and Глава 4, large portions of which are copyrighted by the NASM Development Team and licensed under the LGPL.