Top 5 Free Database Diagram (ERD) Design Tools To help you determine the right tool for you to design database schema diagrams, we've curated a list of 5 of the best free online tools to do it. And designing database schemas is one of the very first and important steps to start developing any software/website.
A database schema is the blueprints of your database, it represents the description of a database structure, data types, and the constraints on the database.