Download !free! Sql Developer 21.4.3 Jun 2026

Open your web browser and search for the page.

If your TNS names do not populate, navigate to . Set the Tnsnames Directory field to the exact folder location containing your tnsnames.ora file. To help tailor any further assistance, tell me: What operating system are you planning to install this on?

: This release includes updated Apache Log4j 2.17.1 to address known security vulnerabilities. download sql developer 21.4.3

This indicates that the hostname or Service Name entered in your connection properties does not match the configuration on the database server. Double-check your database listener file ( listener.ora ) or verify the parameters with your database administrator. "Maximum number of connections exceeded"

Version 21.4.3 requires Oracle Java 8 or 11 (minimum 1.8 update 171). Open your web browser and search for the page

This guide provides the official steps to download SQL Developer 21.4.3.

Oracle Corporation restricts downloads of specific older versions to registered users. While the "latest" version is often available publicly, retrieving a specific point release like 21.4.3 generally requires an Oracle account. To help tailor any further assistance, tell me:

A: The "with JDK" version includes a bundled Java 8 runtime that prevents any JVM detection issues. The "no JDK" version requires you to have a compatible JDK (8 or 11) already installed.