Best Oracle Database Design Tools in 2026

You need an Oracle schema designed before its tables exist, reviewed like code, and documented for people who never log in to the database. DbSchema is the database design tool for that job. It reverse-engineers Oracle into diagrams, keeps the design in a file that you commit to Git, and exports HTML5 documentation. It reads the other databases on your estate too.

Oracle SQL Developer Data Modeler and Redgate Data Modeler also keep a design model. Aqua Data Studio, DataGrip and DBeaver are SQL clients that draw diagrams of the database you're connected to. Every fact about those five tools comes from their vendors' own pages and documentation, checked on 12 November 2026.

What an Oracle design tool has to do

A design tool keeps a model of the schema between the database and everything made from it. It reverse-engineers the schema you have, and lets you change the design without touching production. Then it turns the design into what other people use: a reviewed change, a document, a migration script.

An SQL client starts from the other end. It connects, runs your queries and draws the tables that exist now. Its diagram is a picture of the database, not a design that you change and review first. If a schema change has to be reviewed before it reaches Oracle, you need a design tool.

Ask each tool on your shortlist the same questions:

• Does it reverse-engineer your Oracle schema with its identity columns, check constraints and comments?
• Is the design kept in a file you commit, on the vendor's server, or only in the database?
• Can it check the model against your own naming and design rules?
• Does it compare the design with the database and write the migration script?
• What does it export for people without a database login?
• Does it read the other engines you run beside Oracle?

How the six compare

Each tool's section below links the vendor pages behind these values, and gives the prices.

Other lists for this search name more design tools. Luna Modeler, from Datensen, runs on your own computer under Windows, macOS and Linux. Its Oracle page lists synonyms, types, packages, sequences, triggers and functions among the objects it designs. It writes SQL scripts, HTML or PDF reports, and migration scripts. Luna Modeler is a one-time purchase, from $99 for the Basic edition on its pricing page, with a 14-day trial. erwin Data Modeler, Toad Data Modeler and Enterprise Architect appear on other lists too. This comparison does not cover them. You can run the test in the last section on them too.

DbSchema

DbSchema connects to Oracle and downloads the JDBC driver on the first connection. In the Reverse Engineer the Database dialog, tick the schemas and press Load. DbSchema draws the tables and foreign keys as an interactive diagram, where you create and change tables, columns and keys. Connecting and reverse engineering work in the free Community Edition.

While DbSchema is connected, a change that you confirm in the diagram runs in Oracle at once. To design first, choose Offline (connect later) from the connection button in the toolbar. Your changes then stay in the model, which DbSchema saves as a .dbs file. File → Git Collaboration commits, pushes and pulls that file, so a teammate reviews the change as a diff before it reaches Oracle.

Once the change is approved, schema synchronization compares the model with the database and lists every difference. For each one, you choose whether the model or the database wins. DbSchema then writes the SQL for the database side and shows it before it runs.

DbSchema checks the model after every change, in every edition, and flags problems such as a table with no primary key or a name that the database reserves. Your own rules, such as "every table has a comment", need DbSchema Pro.

For people without a database login, File → Export As... → HTML5/PDF Documentation writes HTML5, PDF or Markdown. The HTML5 file opens in any browser with no server. It draws the diagram as a vector image and shows the comments as mouse-over tooltips. The Community Edition documents a diagram of up to 12 tables, with "DbSchema Trial" across the diagram image. Pro documents any diagram.

The Community Edition covers connecting, reverse engineering, the diagrams and the SQL Editor. Pro adds saving the model file, Git, synchronization, your own validation rules and documentation of any size. Pro also has the Data Explorer, the Query Builder and the Data Generator. Architect has everything in Pro, plus logical and conceptual design. A new installation starts with a 15-day trial of Architect. The Oracle guide walks through the whole workflow, and the Git workflow has its own article.

Oracle SQL Developer Data Modeler

Oracle SQL Developer Data Modeler is Oracle's own modeler. Its user guide covers logical, relational and physical models, and starts the program on Windows, Linux and macOS. To start from a schema you have, choose File → Import → Data Dictionary, pick a connection and follow the wizard. It builds a relational model. Import several schemas, and Data Modeler puts them in one relational model, with a subview (a diagram of part of the model) for each schema.

Tools → Design Rules checks the design for violations of Data Modeler's rules. File → Reports writes HTML reports. Synchronize Data Dictionary with Model compares the design with the database. Designs are versioned in Subversion, and Data Modeler has had a Git client since release 19.2. The data dictionary import also reads other databases, such as SQL Server and Db2, through their JDBC drivers.

Read the license and the current release number on Oracle's product and download pages.

Redgate Data Modeler (formerly Vertabelo)

Redgate Data Modeler, formerly Vertabelo, runs in the browser. Its product page names Oracle, SQL Server, MySQL, PostgreSQL, SQLite, IBM Db2, Snowflake, Redshift, HyperSQL and BigQuery. It lists reverse engineering, live validation with SQL previews, versioning with change history, and real-time collaboration. It writes create, drop and partial-change SQL scripts.

The editions page has two editions. Standard is $189 per user per year and covers physical design, with up to 20 models and 100 tables per model. Pro is $303 per user per year and adds logical design, API access, and no cap on models or tables. An Oracle schema of more than 100 tables therefore needs Pro. Redgate offers a 14-day trial.

Aqua Data Studio

Aqua Data Studio is a database IDE for over 40 data source platforms, Oracle among them. Its home page lists logical and physical data models, reverse engineering of schemas into visual ER diagrams, and schema compare and sync across environments. The home page also says that Aqua Data Studio has version control built in, and names no version control system.

The pricing page lists Standard at $499 and Ultimate at $699 per user, licensed for one, two or three years. Ultimate adds task scheduling, synthetic data generation, and JSON import and export with MongoDB. Enterprise Ultimate is priced on request. The home page offers a 14-day trial. In Aqua Data Studio, modeling is one job beside querying and administration.

DataGrip

DataGrip is JetBrains' SQL IDE. Its diagrams page generates a diagram for a data source, a schema or a table. The diagram exports as PNG, GraphML, draw.io, Graphviz, Mermaid or PlantUML. When you save it, DataGrip writes a .uml file in its own format. The diagram is drawn from the database you're connected to.

According to its product page, DataGrip keeps your SQL scripts in Git. DataGrip is free for non-commercial use, and commercial use starts with a 30-day trial. The buy page shows the subscription prices.

DBeaver

DBeaver Community is a free, open-source client for Windows, macOS and Linux, and it connects to Oracle. Its diagrams are read-only by default. They export as PNG, GIF, BMP or GraphML, and as SVG in the paid editions.

Edit mode, in Enterprise and Ultimate only, turns the diagram into a schema editor. DBeaver writes your changes as an SQL script, and Save applies it to the database after you review it. Each change goes straight to the database, with no model file in between.

The editions page lists Lite at $113, Enterprise at $255 and Ultimate at $510 a year. Team Edition is listed at $1,630. Git sync is in Enterprise, Ultimate and Team Edition. The buy page offers a 14-day trial of the paid editions.

How to test your shortlist on an Oracle schema

A vendor page tells you what a tool supports. A diagram of your own schema shows which of your objects the tool reads correctly. Run this script in an empty Oracle schema. It creates two tables with identity columns, a named check constraint, comments, a foreign key with its index, a sequence and a view.

CREATE TABLE customers (
  customer_id NUMBER GENERATED BY DEFAULT AS IDENTITY PRIMARY KEY,
  email       VARCHAR2(320) NOT NULL UNIQUE,
  status      VARCHAR2(10) DEFAULT 'ACTIVE' NOT NULL
              CONSTRAINT customers_status_ck CHECK (status IN ('ACTIVE', 'CLOSED'))
);

COMMENT ON TABLE customers IS 'One row per customer account';
COMMENT ON COLUMN customers.email IS 'Sign-in address';

CREATE TABLE orders (
  order_id    NUMBER GENERATED BY DEFAULT AS IDENTITY PRIMARY KEY,
  customer_id NUMBER NOT NULL
              CONSTRAINT orders_customer_fk REFERENCES customers (customer_id),
  ordered_at  DATE DEFAULT SYSDATE NOT NULL
);

CREATE INDEX orders_customer_ix ON orders (customer_id);

CREATE SEQUENCE invoice_no_seq START WITH 1000;

CREATE VIEW active_customers AS
  SELECT customer_id, email FROM customers WHERE status = 'ACTIVE';

Oracle creates more objects than the script lists. An identity column takes its values from a sequence generator that Oracle creates for it, and the identity clause makes the column NOT NULL. USER_TAB_IDENTITY_COLS gives the name of each such sequence. The script creates one sequence, and Oracle adds one for each identity column. A tool that misses this shows three sequences in the design.

Reverse-engineer the schema in each tool on your shortlist, and compare what comes back:

Then add a column to ORDERS in the design, and ask each tool for the script that brings the database in line. Check that the tool writes that script, and that you can read it before it runs.

Download DbSchema at https://dbschema.com/download.html, connect it to the schema that the script created, and reverse-engineer it into a diagram with the free Community Edition. Saving the design to a file, Git, synchronization with the database and documentation of any size are in DbSchema Pro. The 15-day trial of Architect includes all of them, and the purchase page prices Pro and Architect in your own currency.

Sources

1. Datensen: Luna Modeler for Oracle
2. Datensen: Pricing
3. Oracle SQL Developer Data Modeler User's Guide 24.3: Data Modeler concepts and usage
4. Redgate Data Modeler
5. Redgate Data Modeler: Editions
6. Aqua Data Studio
7. Aqua Data Studio: Pricing
8. DataGrip documentation: Diagrams
9. DataGrip
10. DataGrip: Buy
11. DBeaver Community
12. DBeaver documentation: Oracle
13. DBeaver documentation: Diagrams
14. DBeaver documentation: Edit mode
15. DBeaver: Editions
16. DBeaver: Buy
17. Oracle Database 21c SQL Language Reference: CREATE TABLE
18. Oracle Database 21c Reference: ALL_TAB_IDENTITY_COLS