The main objective of this article is to establish generalized fractional Hermite–Hadamard and related type integral inequalities for
h
-Godunova–Levin convexity and
h
-Godunova–Levin preinvexity with extended Wright generalized Bessel function acting as kernel. Moreover, Hermite–Hadamard-type and trapezoid-type inequalities for several known convexities including Godunova–Levin function, classical convex,
s
-Godunova–Levin function,
P
-function, and
s
-convex function are deduced as corollaries. These obtained results are analyzed in the form of generalization of fractional inequalities.