If you're diving into browser automation, web scraping, or setting up a Selenium Grid, you’ve likely encountered the need for the Selenium Server Standalone JAR . This single file is the heart of legacy Selenium RC (Remote Control) and the Selenium Grid hub/node architecture.
<dependency> <groupId>org.seleniumhq.selenium</groupId> <artifactId>selenium-server</artifactId> <version>4.23.1</version> </dependency> selenium server standalone jar download
# Replace the version number with the latest wget https://github.com/SeleniumHQ/selenium/releases/download/selenium-4.23.1/selenium-server-4.23.1.jar Or with curl : If you're diving into browser automation, web scraping,
Only download from selenium.dev or github.com/SeleniumHQ . Avoid random mirrors or outdated blog post links. Last updated: April 2026 – covers Selenium 4.x. For the latest version, always check the official downloads page. Avoid random mirrors or outdated blog post links
java -jar selenium-server-4.23.1.jar node --hub http://localhost:4444 You can then access the Grid console at http://localhost:4444 . | Problem | Solution | |---------|----------| | "Unable to access jarfile" | Use full path to the JAR, or run command from the directory containing the file. | | Download is slow | Use a download manager or mirror from Maven Central instead. | | Java version error | Update to Java 11 or newer. | | File corrupted | Delete and re-download, then verify the SHA checksum. | Alternative: Get via Maven/Gradle (for developers) If you're using a build tool, you can declare the Selenium Server as a dependency:
implementation 'org.seleniumhq.selenium:selenium-server:4.23.1' But note: this pulls many transitive dependencies. For most users, the standalone JAR is simpler. ✅ Java 11+ installed ✅ Downloaded selenium-server-*.jar from official source (selenium.dev or GitHub) ✅ Verified SHA-256 checksum ✅ Tested with java -jar selenium-server-*.jar --version ✅ Started the server successfully Conclusion Downloading the Selenium Server Standalone JAR is straightforward if you stick to the official channels. Whether you're setting up a distributed test grid or maintaining legacy RC tests, this JAR remains a critical tool.
java -jar selenium-server-4.23.1.jar hub For a Node (pointing to a Hub):