How to Install Apache NetBeans 27 on Windows 11: A Complete Guide for Developers

If you’re looking for a powerful, open-source IDE for Java, PHP, or web development, Apache NetBeans 27 is one of the best choices available today. Released under the Apache Software Foundation, this version brings improved Java 21 support, enhanced performance, and better integration with modern frameworks.

In this tutorial, you’ll learn how to install Apache NetBeans 27 on Windows 11 step by step — from installing Java to verifying your setup.

What is Apache NetBeans 27?

Apache NetBeans is a free, open-source Integrated Development Environment (IDE) that supports multiple languages like Java, PHP, HTML5, and C/C++.

The new version 27 improves performance and usability, providing developers with a clean, modular interface and built-in support for the latest Java versions.

Key Highlights of NetBeans 27:

• Full support for Java SE 21 and Jakarta EE 10
• Integrated Maven, Gradle, and Git tools
• Lightweight, customizable interface
• Plugin system for language extensions
• Free and open-source

Prerequisites

Before installing, make sure your Windows 11 system has:

• At least 4 GB of RAM (8 GB recommended)
• Java Development Kit (JDK 17 or newer)
• Administrator privileges

Step 1: Download and Install Java (OpenJDK 21 Recommended)

Apache NetBeans requires Java to run. The most stable option is OpenJDK 21.

1. Open your browser and go to:
   👉 https://jdk.java.net/21/
2. Download the Windows x64 Installer (.msi) package.
3. Run the installer and follow the on-screen setup wizard.
4. When finished, verify Java installation:

• Press Windows + R, type cmd, and hit Enter.
• Run the following command: java -version
• You should see output similar to: openjdk version "21.0.3" 2025-04-16

If you get an error saying 'java' is not recognized, make sure you added Java to your PATH environment variable (explained below).

Step 2: Add Java to System Environment Variables

If Java isn’t recognized in Command Prompt, follow these steps:

1. Open the Start Menu, search for Environment Variables, and click Edit the system environment variables.
2. In the System Properties window, click Environment Variables.
3. Under System Variables, find and select Path, then click Edit.
4. Click New and add the path to your JDK’s bin directory. Example:

   C:\Program Files\Java\jdk-21\bin

5. Click OK on all windows to save your settings.

Now restart Command Prompt and run:

java -version

If it shows the version correctly, Java is ready.

Step 3: Download Apache NetBeans 27

You can download the official Apache NetBeans 27 installer from the Apache website.

1. Visit:
   👉 https://netbeans.apache.org/download/nb27/
2. Choose the Windows version.
3. Download the .zip or .exe file (installer version recommended).
4. Once downloaded, extract the ZIP (if applicable).

Step 4: Install Apache NetBeans 27

If you downloaded the .exe installer:

1. Double-click the installer to start the setup.
2. Select your installation directory (default is C:\Program Files\NetBeans-27).
3. Make sure the installer detects your Java JDK location. If not, click Browse and select the correct JDK path.
4. Follow the on-screen prompts and wait for the installation to complete.

If you downloaded the ZIP file:

1. Extract it manually to your desired folder (e.g., C:\NetBeans).
2. Inside the bin folder, find and run netbeans64.exe.

Step 5: Launch Apache NetBeans 27

After installation:

• Go to Start Menu → Apache NetBeans 27, or
• Run netbeans64.exe from:

  C:\Program Files\NetBeans-27\bin\

The splash screen will appear, followed by the NetBeans welcome window.

Step 6: Create Your First Project

To verify that everything is working properly:

1. Go to File → New Project
2. Choose Java with Ant → Java Application
3. Name your project and click Finish
4. Type a simple Java program, such as:

   public class HelloWorld {
       public static void main(String[] args) {
           System.out.println("Hello, NetBeans 27 on Windows 11!");
       }
   }

5. Click the Run icon (green triangle) — you should see your message in the output window.

Step 7: Troubleshooting Common Issues

Issue 1: NetBeans can’t find Java

• Make sure your JDK path is set correctly under:

  Tools → Java Platforms → Add Platform

Issue 2: Slow startup

• Disable unnecessary plugins in:

  Tools → Plugins → Installed

and uncheck the ones you don’t use.

Issue 3: Permission denied or access issues

• Run NetBeans as Administrator (right-click → Run as Administrator).

Step 8: Uninstalling Apache NetBeans 27

If you ever need to remove NetBeans from Windows 11:

1. Open Control Panel → Programs → Uninstall a program.
2. Find Apache NetBeans IDE 27 and click Uninstall.
3. Optionally, delete leftover configuration files in:

   C:\Users\<YourName>\AppData\Roaming\NetBeans

Why Use Apache NetBeans 27 on Windows 11?

• Perfect integration with Java 21 and modern frameworks
• Smooth performance and stability
• Easy plugin management
• Active open-source community support
• 100% free and open-source

NetBeans 27 brings all the essential tools developers need — from code completion to debugging — in one unified platform.

Conclusion

Installing Apache NetBeans 27 on Windows 11 is straightforward and efficient. Once you set up Java and run the installer, you’ll have a complete development environment ready for Java, PHP, C++, or web projects.

With the latest version’s speed and reliability, NetBeans 27 helps you write, debug, and deploy code faster than ever. So go ahead — start coding your next great project today!