Best Free GUI Software for Oracle

Oracle is a powerful and widely used relational database management system, but working with it can be challenging without the right tools. A good graphical user interface (GUI) can make all the difference, providing a more intuitive and user-friendly way to interact with your Oracle database. In this article, we’ll take a look at some of the best free GUI software options available for Oracle to help you get the most out of your database and streamline your workflow. These tools range from simple query builders to more advanced administration and management solutions.

Some of the best free GUI for Oracle include the following:

dbForge Studio for Oracle

dbForge Studio for Oracle is a comprehensive software tool designed to help Oracle SQL developers increase their coding efficiency, manage and edit data, and streamline schema changes. It offers a user-friendly interface similar to Microsoft Visual Studio and allows easy data synchronization between multiple Oracle servers. With its powerful features and smooth interface, it makes managing and editing Oracle databases a seamless process.


  • Debugger: dbForge Studio for Oracle has a built-in debugging feature for PL/SQL statements, procedures, functions, packages, and triggers. This feature allows you to easily set visual breakpoints in your code, step through it line by line, and view the values of variables as they change. The tool is easy to use and includes two windows: one for starting the debugging session and another for performing debugging operations.
  • Schema Import/Export: The Schema Export and Import Wizards in dbForge Studio for Oracle are tools that help DBAs easily and efficiently transfer schema and data from one database to another. The Export Wizard allows you to select specific schema objects to export, as well as options for archiving, removing old backups, and customizing the backup process. The Import Wizard requires an SQL file created during the previous export to import the schema and data.
  • Data Generator: dbForge Studio for Oracle provides a feature called Data Generator, which is a tool that can quickly generate large amounts of data for Oracle tables. It provides over 200 different options for generating data and can also be automated using the command line. This feature is useful for populating tables with frequently used data types.
  • Report and Analysis: dbForge Studio for Oracle provides a tool for creating reports that can be based on data from a variety of sources. These reports can be simple and require no data source, or they can be more complex and use data from database tables or views, or data that is the result of a query. Users can create these reports using the Data Report Wizard or by starting from a blank template using the Blank Data Report option in the main menu. It is also possible to create a report using the Send To option in the Data Editor and Database Explorer.
  • Documenter: The Documenter tool in dbForge Studio for Oracle allows users to quickly and easily create documentation for Oracle databases in multiple formats including HTML, PDF, and Markdown. Users can select which specific objects and properties to include in the documentation and customize the layout using different style templates and bootstrap themes. Documentation can be generated in three different file formats, each suitable for different purposes such as web publishing or distribution to different systems and devices. In addition, all formats are searchable, making it easy to navigate large databases.

SQuirreL SQL

SQuirreL SQL is a tool that allows users to interact with relational databases through an easy-to-use graphical interface. It uses Java technology to provide access to any JDBC-compliant database on any machine, including remote databases. Users can view and edit data in any JDBC-compliant database, view the database’s metadata, and work with multiple databases on both local and remote machines. The tool has a single, consistent interface for working with different database engines, and users can extend its capabilities by adding DB-specific functionality using plug-ins.


  • Connecting to Databases: Connecting your SQuirreL client to your database involves two steps: obtaining and specifying the location of the appropriate JDBC driver, and creating a connection to a specific database on a specific machine using that driver. This process is referred to as defining a “Driver” and creating an “Alias,” where the “Alias” is a specific instance of the more general “Driver” configuration.
  • Graph plugin: The Graph plugin allows you to visually see the connections between tables. When you right-click on a table in the Object Tree, you have the option to “Add to Graph,” which will open a new tab in the Session’s main window. This tab can be named and saved for future use, providing easy one-click access to important tables and their relationships. The main window can have multiple graph tabs open at once, allowing you to easily view and compare different sets of tables and their relationships.
  • Programming plugins: The developers of SQuirreL SQL encourage individuals to create and share plugins for the software. They allow a lot of flexibility in what can be added to the program, but it is recommended that those interested in creating a plugin first contact the SQuirreL SQL team to see if someone else is already working on a similar feature or if any changes to the plugin API will be required. This is to ensure that the feature being created will be useful to other users as well.


TOra is an open-source multi-platform GUI tool that supports access to most of the popular database platforms in use, including Oracle, MySQL, and PostgreSQL, as well as limited support for any database target accessible through Qt’s ODBC support. It is designed to work on various Linux distributions, Mac operating systems, MS Windows, and UNIX systems.

It includes additional tools designed to assist database administrators and developers with database administration or application development and monitoring. It includes a PL/SQL debugging tool, a SQL worksheet with syntax highlighting, a DB browser, and a comprehensive set of DBA or developer tools.


  • Multiple database connections: TOra handles multiple database connections and has an advanced SQL editor with code completion and syntax highlighting. It also provides performance for your execution plan.
  • Wide support: TOra is a cost-effective solution and supports Oracle 8.1.7 or newer installer versions, including Oracle 10g and 11g.