Oracle SQL Developer Data Modeler Alternatives, Including erwin

Oracle SQL Developer Data Modeler is Oracle's free tool for logical, relational, physical and multidimensional models, and it still works. The download page lists version 24.3.1 under the Oracle Free Use License. Only the 64-bit Windows zip bundles JDK 17. The macOS (ARM64 and x64) and Linux RPM builds need JDK 17 or higher installed first.

Its limits show up outside Oracle. The product page still lists support for additional third-party databases, naming MySQL, TimesTen, Sybase and SQL Server 8, under future plans marked as not a commitment, and its version control integration is Subversion, with no mention of Git. Many people who search for a replacement are really looking for erwin Data Modeler, which Data Modeler can import from (erwin 7.3 files). So erwin comes first below, followed by six tools at lower prices or with better multi-database support. Teams leaving SAP's modeler should also read our PowerDesigner alternatives.

Prices below are as of November 6, 2026. Our method is on How we review tools.

Quick comparison

erwin Data Modeler

erwin, now sold by Quest, is the enterprise tool Oracle's modeler is most often weighed against. The product page lists Oracle, SQL Server, PostgreSQL, MySQL, MariaDB, DB2, Teradata, Snowflake, Databricks, BigQuery and NoSQL targets such as MongoDB, Cassandra and Neo4j, plus GenAI features that generate draft models. Standard covers conceptual, logical, physical and NoSQL models. Workgroup adds the Mart repository with permissions and change management, per the editions page.

To download it, new users fill in Quest's trial registration form, which signs you up for marketing email. Licensed customers get installers from the support site, which lists erwin Data Modeler 15.1 (64-bit) from October 2, 2025 and a macOS build of 15.1 from October 20, 2025, and says a newer version exists.

Best for: Large data teams that need a central model repository, naming standards and many database targets.

Pricing:

• No public price; quotes from Quest sales or resellers
• Editions: Standard, Workgroup, and Navigator (read-only viewer)
• Free trial through a registration form; length not stated

Watch out for:

• Licensing is the common complaint. A reviewer in a PeerSpot pricing thread called the process painful in August 2026.
• The trial page states neither the trial length nor the version you get, so plan a call with Quest before you count on it.

Official site: erwin Data Modeler. Our listing: erwin Data Modeler.

ER/Studio Data Architect

Idera's ER/Studio is the other big enterprise modeler, and unlike erwin it prints prices. Data Architect and Data Architect Pro are listed per user on the pricing page, and the Enterprise edition adds a web portal and connections to governance tools such as Microsoft Purview and Collibra.

Its MetaWizard bridges import models from many other tools, including SAP PowerDesigner conceptual, logical and physical models, per the product docs. That matters if your Oracle team also inherited models from another modeler.

Best for: Organizations that want an enterprise modeler with published prices and governance integrations.

Pricing:

• Data Architect: $2,687 per user, total subscription price
• Data Architect Pro: $3,693 per user, subscription
• Enterprise: contact sales; free trial offered

Watch out for:

• ER/Studio does not publish how long the subscription term lasts on its pricing page, so compare quotes carefully.

Official site: ER/Studio Data Architect. Our listing: ER/Studio Data Architect.

Navicat Data Modeler

Navicat Data Modeler 5 runs natively on Windows, macOS 14 or later and Linux, with no JDK step. Per the product page, one workspace holds conceptual, logical and physical models, notations include Crow's Foot, IDEF1X and UML, and targets cover Oracle, MySQL, PostgreSQL, SQL Server, MariaDB, SQLite, Snowflake and MongoDB.

That target list is the reason to move. Oracle's tool is built around Oracle Database and lists more third-party targets only as future plans, while Navicat converts one model between databases. A free Lite edition handles basic diagramming for up to five users in one organization.

Best for: Teams that design for Oracle and at least one other database and want a native app.

Pricing:

• Lite: free, up to 5 users per organization
• Enterprise: USD 1,299 perpetual, shown as a reseller price
• Subscriptions: price not published

Watch out for:

• The free Lite edition cannot reverse-engineer a database, generate SQL, sync or convert models, per the feature matrix, all things Oracle's free tool does.

Official site: Navicat Data Modeler. Our listing: Navicat Data Modeler.

DbSchema

DbSchema replaces Data Modeler's Subversion link with Git. You keep the model as a file in a Git repository, compare it against a live database and deploy the differences. It connects over JDBC, so Oracle, PostgreSQL, SQL Server and MongoDB all work from the same app on Windows, macOS and Linux.

The licence is perpetual and installs on two computers, used one at a time. Pro generates HTML documentation from the model, per the purchase page.

Best for: Developers who want a cross-database modeler with Git and a licence they own.

Pricing:

• Community: free
• Pro: $294 one-time; updates $75 a year after year one
• Architect: $470.40 one-time; updates $120 a year
• AI Assistant add-on: $9 a month; 15-day trial

Watch out for:

• Community cannot save designs to a file or work offline, per the purchase page.

Official site: DbSchema. Our listing: DbSchema.

Luna Modeler

Datensen's Luna Modeler is a small desktop app for relational models that lists Oracle among its targets, next to PostgreSQL, SQL Server, MySQL, MariaDB, SQLite, Supabase and Neon. Version 14.7 is current on the product page, with builds for Windows, macOS and a Linux AppImage.

Professional compares a model with a live database and writes the ALTER script, much like Data Modeler's synchronization, and adds SSH and TLS connections. Luna began as the relational half of Moon Modeler; our Moon Modeler alternatives page explains the split.

Best for: Individual developers who want a cheap, modern modeler that still targets Oracle.

Pricing:

• Basic: $99 one-time
• Professional: $189 one-time
• Ultimate: $349 one-time
• One user, unlimited devices; first year of updates included

Watch out for:

• Updates after the first year need a renewal, and the purchase page lists no renewal price.
• Basic cannot compare against a live database. That needs Professional.

Official site: Luna Modeler.

SqlDBM

SqlDBM is a browser-based modeler built around cloud warehouses. Its pricing page lists Snowflake, Databricks, Redshift and BigQuery, plus Oracle, PostgreSQL, SQL Server, AlloyDB and MySQL as transactional targets.

Models sync with GitHub, GitLab, Bitbucket and Azure DevOps, and it can generate dbt YAML from a model, per its comparison page. For an Oracle team moving workloads to Snowflake, it covers both ends.

Best for: Data teams modeling Oracle sources and cloud warehouses together, with Git and dbt.

Pricing:

• No public price; quote per user
• One plan with all features; AI Copilot credits billed separately

Watch out for:

• Reviewers on G2 say deployment steps often need custom scripts, and one notes conceptual modeling is missing.

Official site: SqlDBM. Our listing: SqlDBM.

dbdiagram.io

For quick work, dbdiagram.io is faster than opening a Java app. You type tables in DBML, an Apache 2.0 text format published on GitHub, and the diagram draws itself. Because the model is text, it reviews cleanly in a pull request.

SQL import and export, reverse engineering from a database and PDF, PNG or SVG export are on every plan, including Free, per the pricing page. Viewers are unlimited.

Best for: Developers who want a shareable schema diagram in minutes, not a full modeling suite.

Pricing:

• Free: up to 10 diagrams, one editor
• Personal Pro: $8 a month
• Team: $75 a month with 3 editors; extra editors $5 a month
• Annual billing saves up to 42%

Watch out for:

• No logical or multidimensional models. DBML maps to physical tables, so it replaces only part of what Oracle's modeler does.
• Free keeps 14 days of schema changes and no version history.

Official site: dbdiagram.io.

How to choose

When to stay with Oracle SQL Developer Data Modeler

Stay with Oracle SQL Developer Data Modeler if your databases are Oracle and nobody needs Git integration. It is free, builds logical, relational and multidimensional models, reverse-engineers any supported Oracle database, and Oracle Support will help if you hold a Database licence. None of the paid tools above gives you that much for Oracle at no cost.

Frequently asked questions