tldr/pages/common/react-native-start.md

react-native start

Command-line tools to start the React Native server. More information: https://github.com/react-native-community/cli/blob/master/docs/commands.md#start.

• Start the server that communicates with connected devices:

react-native start

• Start the metro bundler with a clean cache:

react-native start --reset-cache

• Start the server in a custom port (defaults to 8081):

react-native start --port {{3000}}

• Start the server in verbose mode:

react-native start --verbose

• Specify the maximum number of workers for transforming files (default is the number of CPU cores):

react-native start --max-workers {{count}}

• Disable interactive mode:

react-native start --no-interactive