1. peewee

    Object Relational Mapper (ORM)

  2. Jugglingdb

    Multi-database ORM for nodejs: redis, mongodb, mysql, sqlite3, postgresql, arango, in-memory... - 1602/jugglingdb

  3. Hibernate

    Hibernate an open source Java persistence framework project.

  4. Sequelize

    Provides access to a MySQL database by mapping database entries to objects and vice-versa.

  5. SQLAlchemy

    SQLAlchemy is the Python SQL toolkit and Object Relational Mapper that gives application developers the full power and flexibility of SQL.