SqlDBM

SqlDBM lets you diagram your entire database without writing a single line of code. SqlDBM supports leading cloud-based database providers like Snowflake, Azure Synapse, and Redshift and many on-premise solutions like Postgres, MySQL and MS SQL Server.
Through native SQL integration with supported database vendors, SqlDBM can automatically diagram your entire database by scanning (or uploading) the existing DDL (otherwise known as reverse engineering.)
Using an online visual interface, users can create new objects, make changes, and add properties without writing the corresponding SQL. SqlDBM generates all the changes as CREATE or ALTER statements through a process called forward engineering.