| Price from | $25/mo | Free |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | — | — |
| Web | Yes | Yes |
| Self-hosted | Yes | — |
| Plans published | 8 | 3 |
| Spec score · Database Design Tools | 8.5 (#5) | 7.6 (#18) |
| Intended users | ChartDB says it was built to help developers and product teams understand database schemas and create shareable diagrams. | The site describes the tool for teachers, students, independent users and business database design teams. |
| Purpose | ChartDB is a database visualization and diagramming tool for visualizing, designing, and managing database schemas. | ER Designer is a browser-based platform for creating ER diagrams, restructuring database schemas and generating logical schemas. |
| Support | The free plan includes a community support forum, Pro lists 3-day email support, and Teams lists priority support. | The help page invites bug reports and improvement suggestions through a feedback form. |
