30 Must-Have IntelliJ IDEA Plugins to Supercharge Your Java Development

Installation Guide

Search directly in IntelliJ IDEA's plugin marketplace to install the desired plugins.

Highly Recommended Plugins

Presentation Assistant (Shortcut Key Display)

Shows shortcut keys during screen recording or sharing, improving presentation quality.

Codota – Intelligent Code Completion

Provides AI‑powered code suggestions and can search for related code examples.

Codota also offers a website for code search: https://www.codota.com/code .

Alibaba Java Code Guidelines

Highlights violations of Alibaba’s Java coding standards in real time.

Translation – Essential Translation Plugins

Shortcut keys:

command+ctrl+i

(mac) or

ctrl+shift+o

(win/linux).

command+ctrl+i (mac)

ctrl+shift+o (win/linux)

SequenceDiagram – Automatic Call‑Chain Sequence Diagrams

Right‑click → Sequence Diagram to generate diagrams; double‑click class or method names to navigate to source.

Rainbow Brackets – Colorful Bracket Matching

HighlightBracketPair – Bracket Pair Highlighting

Grep Console – Console Log Highlighting

google-java-format – Automatic Code Formatting

No manual shortcut needed; formats code automatically.

Key Promoter X – Shortcut Key Hints

CodeGlance – Code Minimap

Provides a thumbnail view of the code to quickly navigate large files.

Leetcode Editor – Solve Algorithms Inside IDEA

Allows solving LeetCode problems directly in the IDE.

Material Theme UI – IDEA Theme Plugin

Power Mode II – Typing Effects

RoboPOJOGenerator – JSON (GsonFormat) Generator

Statistic – Project Information Statistics

Shows statistics of all file types in the project.

CamelCase – Switch Between Naming Conventions

Shortcut keys can be found under IDEA’s Edit menu.

jclasslib Bytecode Viewer – View Bytecode

Open the class, compile, then select View → Show Bytecode With jclasslib.

Auto Filling Java Call Arguments

Press Alt+Enter on a function call and select “Auto fill call parameters”.

GenerateO2O – Auto‑Fill Parameter Values

GenerateAllSetter – Auto‑Invoke All Setters

Maven Helper – Resolve Maven JAR Conflicts

FindBugs – Detect Potential Code Issues

Stack Trace to UML – Generate UML from Exceptions

Analyze → Open Stack trace to UML plugin to create sequence and communication diagrams.

Java Stream Debugger – Visualize Stream Operations

RestfulToolkit – Quick Navigation to Action Methods

JRebel for IntelliJ – Hot‑Swap Java Code

Allows immediate effect of code changes after pressing a shortcut.

String Manipulation – Advanced String Operations

Use Alt+M to open a list of string manipulation functions such as camel‑case conversion, uppercase constants, encoding/decoding, etc.

Free MyBatis Plugin – Navigate from Mapper Interface to XML

IDEA QAPlug – Early Detection of Potential Bugs

Helps locate possible bugs before they become issues.