1.cloudamqp / lavinmqUltra quick message queue and streaming servermessage-queueserveramqpbackground-jobsjob-queuemessage-broker+3 moreCrystalAPACHE-2.01K total66 forks+117 starsfrom 914 · score 4.77
2.will / crystal-pga postgres driver for crystalcrystalpostgresCrystalBSD-3-CLAUSE483 total86 forks+5 starsfrom 478 · score 1.79
3.crystal-lang / crystal-sqlite3SQLite3 bindings for Crystalcrystalsqlite3databasedriverCrystalMIT161 total31 forks+2 starsfrom 159 · score 1.10