drawDB vs ERBuilder Data Modeler

drawDB is a browser-based database diagram editor for modeling schemas, importing existing definitions and exporting SQL. It supports Generic, MySQL, PostgreSQL, SQLite, MariaDB, Microsoft SQL Server and Oracle diagrams. Imports include drawDB JSON and DDB files, DBML, and SQL scripts for the listed database systems; exports include SQL, image and document formats, drawDB JSON, DBML, Mermaid and Markdown. The free plan is listed at free and includes local diagrams, SQL dialects, and import and export. In the open-source editor, diagrams and custom templates live in browser IndexedDB, tying them to that browser profile. The maker says it can also be self-hosted with Docker. Pro options add cloud storage and sync, public sharing, AI assistance and version history; team options include workspaces, roles, diagram permissions and live collaboration. The AI assistant can create or edit schema elements from prompts, while the MCP server provides read-only access for compatible coding tools to schemas in Pro cloud workspaces. Schema context is sent to the AI service when it operates on a diagram.

ERBuilder Data Modeler is a Windows desktop tool for designing databases with graphical entity relationship diagrams and generating SQL databases. It supports IDEF1X, Crow’s Foot, Codasyl and Relational notations. Users can create DDL scripts and databases from models, or reverse engineer existing databases into graphical models. Supported systems include Oracle, Microsoft SQL Server, MySQL, MariaDB, PostgreSQL, SQLite, Firebird, Azure SQL Database, Azure Synapse Dedicated SQL Pool, Amazon Redshift and Amazon RDS. The feature matrix lists natural-language generation and updating of ER diagrams, metadata queries powered by the ChatGPT API, and AI descriptions for procedures, views and triggers. Softbuilder says AI inputs are sent to OpenAI servers via HTTPS and are not retained. Enterprise includes navigable HTML and Word documentation, Confluence documentation and Git collaboration for browsing, merging and comparing model versions. A free edition is listed, and the maker offers a 15-day fully functional trial with all features, no credit card required and free technical support. Professional costs $139 a year; Enterprise costs $399 a year. Both include one workstation, one year of Standard support and one year of maintenance and updates.