Boost Your Java Productivity: 15 Must-Have IntelliJ IDEA Plugins

After installing IntelliJ IDEA, applying the following configurations can increase development efficiency dramatically.

1. Codota – AI‑powered code completion

Type a few letters and Codota suggests full statements, showing usage frequency based on learned patterns from your own project code.

2. Key Promoter X – Shortcut hints

Shows a pop‑up in the bottom‑right corner with the corresponding shortcut whenever you use a command, helping you master shortcuts quickly.

3. CodeGlance – Code minimap

Displays a thumbnail view of the entire file, making navigation easier when the codebase is large.

4. Lombok – Boilerplate reduction

Generates getters, setters, constructors, toString, hashCode, etc., so you no longer need to write them manually.

5. Alibaba Java Coding Guidelines – Code style inspection

Checks code against Alibaba’s Java standards, highlights issues with colored markers, and provides inline suggestions.

6. CamelCase – Naming style conversion

Quickly switch between camelCase and snake_case using ⇧+⌥+U, useful for bulk renaming.

7. MybatisX – MyBatis assistance

Provides efficient operations and navigation for MyBatis mapper files.

8. SonarLint – Real‑time code quality analysis

Warns against using System.out, recommends logger usage, and offers other quality improvements.

9. Save Actions – Automatic code formatting

Optimizes imports, adds final modifiers to unchanged variables, inserts "this" where appropriate, and enforces consistent formatting.

10. CheckStyle – Code style checking

Similar to the Alibaba plugin, it enforces standard Java coding conventions.

11. Grep Console – Custom console output

Allows you to define patterns and colors for console logs, making debugging clearer.

12. MetricsReloaded – Complexity analysis

Analyzes code metrics such as cyclomatic complexity and provides visual feedback.

13. Statistic – Code statistics

Shows line counts, file counts, and other quantitative information about the project.

14. Translation – Inline translation

Translates selected text directly within the IDE.

15. Rainbow Brackets – Colorful bracket matching

Displays matching brackets in the same color, improving readability of nested code.

Custom Live Templates

Define shortcuts like typing apr to expand into Autowired statements, speeding up repetitive code writing.

Global Configuration Tweaks

1. Optimize import settings

Adjust import rules to reduce unnecessary imports.

2. Disable single‑line tab display

Show multiple lines per tab for better file overview.

3. Move double‑slash comments next to code

Place comments directly above the related code block.

4. Enable line‑wise copy

Copy an entire line without needing to select the whole line.

5. Turn off case‑sensitive matching

Allows suggestions for class names even when typed in lower case.

6. Color‑code version‑control directories

Visually distinguish version‑control folders.

7. Auto‑insert author and timestamp on new files

Templates add metadata automatically.

8. Show line numbers and method separators

Improves navigation within large files.

These plugins and settings together create a highly efficient IntelliJ IDEA environment for Java developers.