DbSchema!

MySQL Workbench is a unified visual tool for database architects, developers, and DBAs. MySQL Workbench provides data modeling, SQL development, and comprehensive administration tools for server configuration, user administration, and much more. MySQL Workbench is available on Windows, Linux and Mac OS.

DbVisualizer is the universal database tool for developers, DBAs and analysts. It is the perfect solution since the same tool can be used on all major operating systems accessing a wide range of databases.

Online tool for visual database design. This one web application support seven major database engines: PostgreSQL, MySQL, Microsoft SQL Server, SQLite, Oracle 11g, IBM DB2 and HSQLDB.Vertabelo allows you to create your database model simply by graphically drawing tables and references. The application validates your model all the time and gives you hints on how to improve it. At any moment you can see a preview of the SQL that will be generated for a selected element.You can share your database models at three different access levels: Owner, Editor and Viewer. Furthermore, everyone who shares a model may open it at the same time. When the model is opened for editing for one person, it is read-only for others. Everyone can see changes in the model just after an autosave.If you need to share a model with your customers or partners and they don't want to create accounts in Vertabelo, you can generate the public link to your model and send it via e-mail.Reverse engineering tool allows you to import an existing database structure and build a model of it. This way you can visualize the data structure of your database and work on it.If you develop web applications, Vertabelo delivers you built-in support for some popular ORMs like Propel (for PHP developers), SQLAlchemy (for Python developers) and JOOQ (for Java developers).The application works completely online and no installation is needed. Just register an account, log in and you can start working on your model from any place in the world connected to internet. Vertabelo offers a free plan which is limited by a certain number of models available to create and the number of tables per one model. For larger projects and companies there are different paid plans. Notice that Vertabelo is totally free for students, lecturers, open source projects and non-profit organizations, provided that it will be used only for educational or non-commercial purposes. »

SQL Workbench/J is a free, DBMS-independent, cross-platform SQL query tool. It is written in Java and thus it should run on any operating system that provides a Java Runtime Environment.

Navicat Data Modeler is a powerful and cost-effective database design tool which helps you build high-quality logical and physical data models. It allows you to visually design database structures, perform reverse/forward engineering processes, import models from ODBC data sources, generate complex SQL/DDL, print models to files, and much more.Simplify the task of creating complex entity relationship models and generate the script SQL with a simple click. Navicat Data Modeler supports various database systems, including MySQL, MariaDB, Oracle, SQL Server, PostgreSQL, and SQLite. »

Aqua Data Studio is a complete Integrated Development Environment (IDE) for database developers. It provides four major areas of functionality: 1) Database query and administration tools; 2) a suite of compare tools for databases, source control and file systems; 3) a complete and integrated source control client for Subversion (SVN) and CVS; and 4) a database modeler as powerful as the best standalone database diagramming tools.

SAP PowerDesigner: Enterprise Architecture tools for digital transformation successPlan and manage complex business transformation initiatives with SAP PowerDesigner. The software’s data modeling tools let you build a blueprint of your current enterprise architecture and visualize the impact of change before it happens. Automatically capture architecture layers and requirements, tap into a powerful metadata repository, and share discoveries with your team.

DBDesigner 4 is a visual database design system that integrates database design, modeling, creation and maintenance into a single, seamless environment.

The MicroOLAP Database Designer for PostgreSQL is an comprehensive CASE tool with intuitive graphical interface allowing you to

Free visual data modeling inspection tool for most popular one-way reverse-engineered relational databases. With a generic graphical interface, and auto-generated detailed, structural, relationships, simple, graph or topological models. Expanded, collapsed, minimized or transparent shapes. Chain relationships, custom joins and aliases, to enhance your model without altering the database itself.

dbDiffo is an online database designer

Visual data modeling for NoSQL and multimodel databases: MongoDB, DynamoDB, and Couchbase schemas

SchemaCrawler is an open-source Java API that makes working with database metadata as easy as working with plain old Java objects.