Default Port for Selenium Grid
The default port for Selenium Grid Hub is 4444.
Access the Grid Hub at:
CODE
http://localhost:4444/grid/console (Selenium 3)
http://localhost:4444 (Selenium 4)
http://localhost:4444/status (Selenium 4 health check)
Starting Selenium Grid Hub (Selenium 3):
Bash
# Start the hub on default port 4444
java -jar selenium-server-standalone-3.141.59.jar -role hub
# Start hub on custom port
java -jar selenium-server-standalone-3.141.59.jar -role hub -port 5555
Registering a Node to the Hub:
Bash
# Register node to hub on port 4444
java -jar selenium-server-standalone-3.141.59.jar \
-role node \
-hub http://localhost:4444/grid/register
Selenium 4 Grid (new unified approach):
Bash
# Start Selenium 4 Grid (hub + node in one)
java -jar selenium-server-4.x.x.jar standalone
# Or separate hub and node
java -jar selenium-server-4.x.x.jar hub # Port 4444
java -jar selenium-server-4.x.x.jar node # Port 5555 (node default)
RemoteWebDriver connecting to Grid:
Java
// Connect test to Selenium Grid hub
DesiredCapabilities caps = new DesiredCapabilities();
caps.setBrowserName("chrome");
WebDriver driver = new RemoteWebDriver(
new URL("http://localhost:4444/wd/hub"),
caps
);
driver.get("https://example.com");
Port summary:
| Component | Default Port |
|---|---|
| Selenium Grid Hub | 4444 |
| Selenium Node | 5555 (configurable) |
| Grid Console UI | 4444/grid/console |
Key point: Port 4444 is the default. Always verify the hub is running at this port before connecting nodes or test scripts.