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:
Get-FileHash selenium-server-4.23.1.jar -Algorithm SHA256 Open the .sha256 file from GitHub and ensure the hash matches exactly. Step 5: Running the Selenium Server Once downloaded, you can start the server in standalone mode (Hub + Node combined) with: selenium server standalone jar download
shasum -a 256 selenium-server-4.23.1.jar java -jar selenium-server-4
java -jar selenium-server-4.23.1.jar hub For a Node (pointing to a Hub): | | Java version error | Update to Java 11 or newer
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.