Boost Your Java Productivity: 15 Must‑Have IntelliJ IDEA Plugins & Settings

1. Install Plugins

1. Codota – AI Code Completion

When you type the first letters, Codota suggests a full statement and shows usage frequency because it has learned from your project code.

It learns your code preferences and can generate intelligent suggestions.

2. Key Promoter X – Shortcut Hints

Shows a popup in the lower‑right corner each time you use a shortcut, helping you quickly become familiar with key bindings.

3. CodeGlance – Code Minimap

Displays a thumbnail overview of the code, making navigation easier when the file is large.

4. Lombok – Reduce Boilerplate

Automatically generates getters, setters, constructors, toString, hashCode, etc., eliminating repetitive code in entity classes.

5. Alibaba Java Coding Guidelines – Code Inspection

Checks code against Alibaba’s Java style guide, highlights issues with colors, and provides inline suggestions to help write more compliant code.

6. CamelCase – Naming Conversion

Quickly toggle between camelCase and snake_case using Shift+Alt+U, useful for bulk renaming of variables.

7. MyBatisX – Efficient MyBatis Operations

Provides powerful tools for working with MyBatis mapper files and XML configuration.

8. SonarLint – Code Quality Checks

Detects issues such as using System.out instead of a logger, helping improve code quality.

9. Save Actions – Automatic Code Formatting

Optimizes imports, adds final to unchanged variables, inserts this in method calls, and enforces consistent formatting.

10. CheckStyle – Code Style Inspection

Similar to the Alibaba plugin, it enforces coding standards and highlights violations.

11. Grep Console – Custom Console Output

Allows custom formatting of console output, making logs easier to read.

12. MetricsReloaded – Code Complexity Analysis

Analyzes code complexity metrics to help identify overly complex methods.

13. Statistic – Code Statistics

Provides statistics about lines of code, classes, methods, etc.

14. Translation – In‑IDE Translation

Translates selected text directly within the IDE.

15. Rainbow Brackets – Colorful Bracket Matching

Displays matching brackets in the same color, improving readability.

2. Custom Live Templates for Faster Coding

By defining live templates, typing a short abbreviation (e.g., apr) can instantly expand to a full @Autowired statement, matching your coding habits.

3. Global Configuration Tweaks to Boost Efficiency

1. Optimize Import Settings

Adjust import settings to automatically organize and simplify imports.

2. Disable Single‑Line Tab Display

Show multiple lines per tab for better visibility of open files.

3. Convert Double‑Slash Comments to Header‑Aligned

Place comment markers directly before code lines for cleaner formatting.

4. Enable Whole‑Line Copy

After configuration, copying a line works even without selecting the entire line.

5. Disable Case‑Sensitive Matching

Unchecking the option allows case‑insensitive suggestions (e.g., typing s suggests String).

6. Improve Version‑Control Directory Colors

Customize colors for version‑control directories to enhance visual distinction.

7. Auto‑Insert Author and Timestamp on New Files

Configure templates to automatically add author name and creation date when creating new files.

8. Show Line Numbers and Method Separators

Enable line numbers and visual separators between methods for easier navigation.

By applying these plugins and configuration tweaks, developers can significantly increase their productivity, maintain higher code quality, and enjoy a smoother development experience in IntelliJ IDEA.