ER/Studio Data Architect vs SchemaSpy
ER/Studio Data Architect
erstudio.comSchemaSpy
schemaspy.orgSide by side
| Figure | ER/Studio Data Architect | SchemaSpy |
|---|---|---|
| Price from | $223.92/mo | Free |
| Free plan | — | Yes |
| Free trial | Yes | — |
| Open source | — | — |
| Windows | Yes | Yes |
| macOS | — | Yes |
| Linux | — | Yes |
| Self-hosted | — | Yes |
| Plans published | 3 | 1 |
| Spec score · Data Modeling Software | 7.9 (#10) | 7.6 (#15) |
| Spec score · Database Documentation Tools | 7.8 (#17) | 7.7 (#19) |
| Purpose | ER/Studio Data Architect is a data modeling solution for individuals and small teams to create, document, and optimize data structures. | SchemaSpy analyzes database metadata and creates HTML reports to help people visualize, navigate, and understand data models. |
| Support | Product support tickets are for customers with a current support contract, and the maker offers a knowledge base. | The project directs users who need help or find a bug to open an issue on GitHub. |
Plans
ER/Studio Data Architect
- ER/Studio Data Architect ProPriced on request
- ER/Studio EnterprisePriced on request
- ER/Studio Data Architect$2,687 a year
In their own words
ER/Studio Data Architect
ER/Studio Data Architect has no write-up on Specifiction yet; its figures are above.
SchemaSpy
SchemaSpy is a free, open-source command-line application that reads database metadata and creates shareable HTML documentation. It generates entity-relationship diagrams from an existing database, collects structural statistics, and can export those statistics to Excel or CSV. Reports can identify design anomalies such as missing indexes, implied relationships, and orphan tables. The project says it supports over a dozen databases directly and can work with others through JDBC drivers. Documentation generation can be placed in a CI/CD workflow, and SchemaSpy can run against an empty database replica because it reads structural information. There is no graphical interface: distribution is through a JAR file or Docker image. Installation requires Java, a database JDBC driver, and viz.js or Graphviz for relationship diagrams. The JAR excludes drivers, while the Docker image includes drivers for MySQL, MariaDB, PostgreSQL, and jTDS for MSSQL. The listed plan price is free.