1.martinus / unordered_denseA fast & densely stored hashmap and hashsetc-plus-pluscpp17cpphashhash-tablesheader-only-library+4 moreC++MIT1.5K total125 forks+143 starsfrom 1,367 · score 4.97
2.greg7mdp / parallel-hashmapA family of header-only, very fast and memory-friendly hashmap and btree containers.hashtablesunordered-mapunordered-sethash-containerparallel+4 moreC++APACHE-2.03.2K total313 forks+67 starsfrom 3,161 · score 4.22