Valkyrie is an open-source graphical user interface for the Valgrind 3.6.X line. Valkyrie uses the Qt widget library, and is based on Valgrind`s XML output capabilities. Valkyrie is designed for simplicity and ease of use, whilst allowing access to the full range of Valgrind command-line options.

Currently, Valkyrie supports Memcheck only, although work is in progress to handle Cachegrind and Massif.