Download Sql Developer 21.4.3 Fix Jun 2026

Keep this set to Basic for most standard setups.

If you need to install or switch JDK versions, you can download Oracle Java 8 or 11 from the official Oracle Java download page .

Locate the downloaded .zip file (e.g., sqldeveloper-21.4.3.x86_64.zip ). Right-click the file and select .

Offers optimized performance when connecting to newer Oracle Database versions. Prerequisites Before Installing download sql developer 21.4.3

: When you first launch the application, you will be prompted to provide the path to your JDK folder (e.g., C:\Program Files\Java\jdk1.8.0_181 Latest Version Note (April 2026)

Enter localhost if the database is on your machine, or enter the server's IP address. Port: The Oracle default port is typically 1521 .

SQL Developer 21.4.3 is a significant release that offers a range of new features and enhancements, including: Keep this set to Basic for most standard setups

Before you install this version, ensure your system meets the following requirements:

Alternatively, you can access the Technology Network archive at:

Extract the downloaded .zip file into a fresh, empty folder (e.g., C:\SQLDeveloper ). Launch the Application: Windows: Open the folder and run sqldeveloper.exe . Right-click the file and select

is a free, integrated development environment (IDE) that simplifies the development and management of Oracle Database in both traditional and Cloud deployments. Version 21.4.3 is a significant release within the 21.x lifecycle, offering enhanced stability, bug fixes, and continued compatibility with modern JDK environments.

Oracle SQL Developer 21.4.3 is a highly stable, widely used release of Oracle’s free graphical tool for database development. It simplifies the management of Oracle Databases both on-premises and in the cloud. This guide provides everything you need to know about downloading, installing, and configuring this specific version. Direct Download Links and Requirements

Before you , ensure your environment meets the following requirements: