The sections below include information about installing Ballerina.
Installing Ballerina via Installers
Follow the instructions below to install the latest Ballerina version using the installer. The installer will automatically uninstall the old Ballerina version if you have one already installed.
Info: Ballerina installers support operating systems such as Windows, Ubuntu, Red Hat Enterprise Linux, macOS, and CentOS. If you are using an unsupported operating system, install via the Ballerina language ZIP file.
Installing on macOS
Download the package file and double-click on it to launch the installer. The installer guides you through the installation process and installs the Ballerina distribution in the
The package automatically sets your PATH environment variable for you. You may need to restart any open Terminal sessions for the change to take effect.
Installing on Windows
Download the MSI file and double-click on it to launch the installer. The installer guides you through the installation process and installs the Ballerina distribution in the
C:\Program Files\Ballerina directory.
The installer should put the
C:\Program Files\Ballerina\<BALLERINA-DIRECTORY>\bin directory in your PATH environment variable. You may have to restart any open command prompts for the change to take effect.
Installing on Linux
Download the DEB file or RPM file and double-click on it to launch the installer. The installer guides you through the installation process and installs the Ballerina distribution in the
Info: Alternatively, you can use either of the commands below to install Ballerina using the downloaded DEB or RPM file. Replace the
ballerina-linux-installer-x64<BALLERINA-VERSION>.rpmwith the actual file path.
For example, for the DEB file:
dpkg -i ballerina-linux-installer-x64-swan-lake-preview1.deb
For example, for the RPM file:
rpm -i ballerina-linux-installer-x64-swan-lake-preview1.rpm
Installing via the Ballerina Language ZIP File
Note: Before you install Ballerina using the ZIP file, ensure that you have a supported Java Runtime Environment (JRE) installed. It is recommended to use the AdoptOpenJRE version 11 or above.
Download the Ballerina language ZIP file (md5, SHA-1, asc) and unzip it to a preferred location using an archiver tool of your choice. This creates a directory named
ballerina-<VERSION>in your system.
Follow either of the steps below depending on your operating system to configure your system environment to run Ballerina:
- For Linux or macOS: set the PATH environment variable to point to the bin directory of the unzipped Ballerina distribution.
- For Windows: add a new environment variable specifying the following values:
- Variable name: PATH
- Variable value: The location of the bin directory of the unzipped Ballerina distribution. For example,
If you already have a jBallerina version above 1.1.0 installed, you can use the update tool to update to the latest jBallerina version by executing either of the commands below.
||Update to the latest patch version of the active distribution|
||Fetch a specific distribution and set it as the active version|
For more information, see Keeping Ballerina Up to Date.
Building from Source
Alternatively, follow the instructions below to build Ballerina from the source.
Setting Up the Prerequisites
You need to download and install the below to build the Ballerina modules.
OpenJDK 11 (Adopt OpenJDK or any other OpenJDK distribution)
Info: You can also use Oracle JDK. Set the JAVA_HOME environment variable to the pathname of the directory into which you installed JDK.
- Node.js (version 8.9.x)
- npm (version 5.6.0 or later)
Obtaining the Source Code
Follow the steps below to obtain the Ballerina source code.
Execute the command below to clone the
git clone --recursive https://github.com/ballerina-platform/ballerina-lang.git
Tip: If you have already forked the repository to your GitHub account, then execute the below command replacing
<YOUR-GITHUB-USERNAME>with your GitHub username.
git clone --recursive https://github.com/<YOUR-GITHUB-USERNAME>/ballerina-lang.git
Execute the command below to update the Git submodules.
git submodule update --init
Building the Source
Follow the steps below to build the project of the obtained source.
Navigate to the root directory of the Ballerina repo (i.e.,
<BALLERINA_PROJECT_ROOT>) and execute one of the Gradle commands below to build the project using Gradle.
- On Unix/macOS:
- On Unix/macOS:
Extract the built Ballerina distributions created in the locations below:
- Runtime only:
- Runtime and tools (e.g., Ballerina Language Server):
- Runtime only:
Note: If you face an IOException error stating “Too many open files”, this is due to the default number of possible open files being set to a lower number on your operating system than required for Ballerina to be compiled. You may have to increase the number of open files/file descriptors (FD) on your operating system to 1000000 (or higher).
Usually, the installation location is
/Library/Ballerina/distributions in macOS,
/usr/lib64/Ballerina/distributions in Linux, and
C:\Program Files\Ballerina\distributions in Windows. You can either remove a particular jBallerina version or all the jBallerina versions installed in these locations.
- a specific jBallerina version (via the update tool): execute
bal dist remove
- all the installed jBallerina versions: delete the
/../Ballerinadirectory in the respective installation location
Once you have successfully installed Ballerina, now you can write your first Ballerina program.
Tip: To get help when you work with Ballerina, see Community.