Description: erplain is an open-source, visual tool for designing entity relationship diagrams and database models. It allows users to visually map out databases with entities, attributes, and relationships in an intuitive graphical interface.
Type: software
Pricing: Open Source
Description: PostgreSQL is an open source, object-relational database management system known for its reliability, performance, and SQL compliance. It runs on all major operating systems and has a rich set of features including complex queries, foreign keys, triggers, views, and ACID compliance.
Type: software
Pricing: Free