30 Must-Have IntelliJ IDEA Plugins to Supercharge Your Development

Installation Guide

Search directly in the IDE to install plugins.

Highly Recommended Plugins

Presentation Assistant – Keyboard Shortcut Display

Great for screen recording or sharing.

Codota – AI Code Completion

Provides intelligent code suggestions and can search for related code examples.

Codota also includes a website: https://www.codota.com/code

Alibaba Java Code Guidelines – Java Coding Standards

Supports switching between Chinese and English; highlights any code that does not conform to the Alibaba Java Development Manual.

Translation – Essential Translation Plugin

Keyboard shortcuts: command+ctrl+i (Mac), ctrl+shift+o (Win/Linux).

command+ctrl+i (Mac)

ctrl+shift+o (Win/Linux)

SequenceDiagram – Auto-Generate Call Sequence Diagrams

Right‑click → Sequence Diagram to open. Double‑click the class name at the top to jump to its source, or double‑click a function name to navigate to that function's source.

Rainbow Brackets – Colorful Bracket Highlighting

HighlightBracketPair – Highlight Matching Brackets

Grep Console – Console Log Highlighting

google-java-format – Automatic Code Formatting

No manual shortcut needed; formats code automatically.

Key promoter X – Shortcut Key Prompts

CodeGlance – Code Minimap

Provides a thumbnail view of the code, allowing quick navigation without excessive scrolling.

Leetcode Editor – Solve LeetCode Problems Inside IDEA

Convenient for practicing algorithms during work.

Decoration Plugins

Material Theme UI – IDEA Theme Plugin

Power Mode II – Typing Effects

Convenient Plugins

RoboPOJOGenerator – Generate POJOs from JSON (GsonFormat also available)

Statistic – Project Information Statistics

Provides a clear overview of file types and counts in the project.

CamelCase – Switch Between Naming Conventions

If you forget the shortcut, find it under IDEA's Edit menu.

jclasslib Bytecode Viewer – View Bytecode

Open the class in IDEA, compile if needed, then select View → Show Bytecode With jclasslib.

Auto Fill Java Call Arguments

Press Alt+Enter on a function call to auto‑fill parameter names.

GenerateO2O – Auto Fill Parameter Values

GenerateAllSetter – Auto Invoke All Setters

Maven Helper – Resolve Maven JAR Conflicts

FindBugs – Detect Code Issues

Stack Trace to UML – Generate UML Diagrams from Stack Traces

Open via Analyze → Open Stack trace to UML, then generate sequence and communication diagrams.

Java Stream Debugger – Visualize Stream Operations

RestfulToolkit – Quick Navigation to Action Methods

JRebel for IntelliJ – Hot Reload Java Code

Changes take effect immediately after pressing the shortcut.

String Manipulation – String Processing Utilities

Supports camelCase conversion, uppercase constants, encoding/decoding, etc. Select text and press Alt+M to open the tool list.

Free MyBatis Plugin – Navigate from Mapper Interface to XML

IDEA QAPlug – Preemptively Find Potential Bugs