QPA = Quivers and Path Algebras
QPA provides software for doing computations over finite dimensional quotients of path algebras. QPA has data structures for quivers, quotients of path algebras, and modules, homomorphisms and complexes of modules over quotients of path algebras. It has implementations for computing homomorphism spaces, projective resolutions, extension groups, generators of Ext-algebras, almost split sequences and more.
The QPA-team, see the QPA homepage.
QPA is a free system and distributed without charge by the QPA-team.