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ER/Studio Data Architect
What ER/Studio Data Architect is
ER/Studio Data Architect is a Windows solution for individuals and small teams that create, document, and optimize data structures. It supports logical and physical data modeling, then can generate a database from a model or extract a model from an existing database. Schema Compare & Merge finds differences between database versions and produces ALTER scripts for changes. A local data dictionary keeps naming conventions, metadata, and business rules consistent within a model, while macros automate repeated work. The tool can import, export, and model JSON schemas. Named database platforms include SQL Server, Oracle, PostgreSQL, Databricks, Snowflake, and MongoDB. Data Architect is self-hosted and supports data lineage, schema history, single sign-on, and a data dictionary. A 14-day free trial is available without a credit card, but there is no free plan. The edition excludes repository support, version control, model sharing, and governance integrations, and includes only a subset of MetaWizard import bridges.
Who it suits
It suits data architects, database administrators, freelancers, consultants, startups, and small businesses working on Windows. It is aimed at individuals and small teams that need modeling and database engineering tools.
What it does well
- Supports logical and physical data modeling
- Generates databases from models
- Compares schemas and creates ALTER scripts
- Imports, exports, and models JSON schemas
- Includes a 14-day trial without credit card
What to know first
- No free plan
- Windows-only platform
- No repository support or version control
- Only a subset of MetaWizard bridges
Plans
| Plan | Billed and limits | Price |
|---|---|---|
| ER/Studio Data Architect Pro | Workstation license · Multi-Platform Capability · Collaboration and change management | On request |
| ER/Studio Enterprise | Enterprise collaboration · Business glossaries · Metadata governance | On request |
| ER/Studio Data Architect | Total subscription price per user; billing interval not stated · Workstation license · Multi-Platform Capability · individual modelers | $2,687 a year |
As erstudio.com lists them, read 21 Sept 2026. The maker's own page has the final word.
Verdict
ER/Studio Data Architect combines modeling, reverse engineering, schema comparison, and dictionary tools in a self-hosted Windows product. Its edition limits collaboration and governance features, so teams needing those capabilities may require another edition.
Facts from ER/Studio Data Architect's own pages
- Database platforms
- The product page names SQL Server, Oracle, PostgreSQL, Databricks, Snowflake, and MongoDB among supported platforms. · erstudio.com, 7 Oct 2026
- Edition limits
- The feature comparison shows that Data Architect does not include repository support, version control, model sharing, or governance integrations. · erstudio.com, 7 Oct 2026
- Engineering
- It can generate a database from a model and extract a model from an existing database. · erstudio.com, 7 Oct 2026
- Headquarters
- Austin, Texas, United States · erstudio.com, 28 Sept 2026
- Integration bridges
- Data Architect includes a subset of MetaWizard import bridges; the full import and export bridge list is included with Enterprise Team Edition. · wiki.idera.com, 7 Oct 2026
- Intended users
- The maker identifies data architects, database administrators, freelancers, consultants, startups, and small businesses as intended users. · erstudio.com, 7 Oct 2026
- JSON
- It can import, export, and model JSON schemas. · erstudio.com, 7 Oct 2026
- Modeling
- It supports logical and physical data modeling. · erstudio.com, 7 Oct 2026
- Operating system
- Data Architect 21.1 technical specifications list 64-bit Microsoft Windows 11 and Windows 10 as supported operating systems. · wiki.idera.com, 7 Oct 2026
- Purpose
- ER/Studio Data Architect is a data modeling solution for individuals and small teams to create, document, and optimize data structures. · erstudio.com, 7 Oct 2026
- Schema changes
- Schema Compare & Merge detects database version differences and generates ALTER scripts. · erstudio.com, 7 Oct 2026
- Security
- Version 21.0 added TLS 1.3 support and an option for ER/Studio Data Architect to log in to the repository through Okta SSO. · wiki.idera.com, 7 Oct 2026
- Standards and automation
- A local data dictionary standardizes naming conventions, metadata, and business rules within a model, and macros automate repetitive tasks. · erstudio.com, 7 Oct 2026
- Support
- Product support tickets are for customers with a current support contract, and the maker offers a knowledge base. · erstudio.com, 7 Oct 2026
- Trial
- The maker offers a 14-day free trial and states that no credit card is required. · erstudio.com, 7 Oct 2026
Where ER/Studio Data Architect stands on Freedom251
- Data Modeling Software#20 of 27
- Database Documentation Tools#21 of 27