Best ER Diagram Tools in 2026 – Free and Paid Comparison | DbSchema
If you searched for an ER diagram tool, you probably need one of three things: draw a schema before deployment, reverse-engineer an existing database, or publish documentation your team can browse.
Quick answer: For multi-database teams that want design-first ER diagrams, schema sync, and HTML documentation, DbSchema is the strongest overall choice. For database-specific guides, use the focused tutorials below.
Best ER diagram tools at a glance
| Tool | Best for | Offline design | Multi-DB | Documentation |
|---|---|---|---|---|
| DbSchema | Design-first ER diagrams + sync | Yes | Yes | Interactive HTML |
| DBeaver | Live schema exploration | Limited | Yes | Basic |
| MySQL Workbench | MySQL-only modeling | Yes | No | Limited |
| pgModeler | PostgreSQL-only modeling | Yes | No | SQL/HTML |
| dbdiagram.io | Quick online diagrams | No | Limited | Export only |
DbSchema – best overall ER diagram workflow
DbSchema treats the ER diagram as a maintained model file, not a one-time export.
- design schemas before the database exists
- reverse-engineer live PostgreSQL, MySQL, SQLite, MongoDB, and 100+ engines
- split large schemas into multiple focused layouts
- compare the model with the live database and deploy reviewed changes
- publish interactive HTML documentation from the same model
Download DbSchema free or read the full database design tool overview.
Database-specific ER diagram guides
These tutorials rank well for engine-specific ER diagram searches and show DbSchema in real workflows:
- PostgreSQL ER diagrams
- MySQL ER diagrams
- SQLite ER diagrams
- MongoDB database diagrams
- Top free ER diagram tools
When to choose something else
- DBeaver if you mainly browse live databases and run SQL, not maintain a design model
- MySQL Workbench if your team is MySQL-only and wants the official Oracle tool
- Browser-only tools if you need a quick shared sketch and do not need reverse engineering or deployment
For a broader tool comparison, see Best Database Schema Design Tools in 2026 and DBeaver Alternative – DbSchema.
Final recommendation
Most teams outgrow single-purpose diagramming once they need schema review, documentation, and deployment. DbSchema covers that full path from first ER diagram to published docs.
Start with the free Community Edition: Download DbSchema. Pro licenses start at $98 for education.
Create ER diagrams in minutes
DbSchema reverse-engineers your database, keeps layouts readable, and exports interactive documentation — free Community Edition included.
