30 Essential IntelliJ IDEA Plugins for Java Developers

Installation Tutorial

Search for plugins directly within the IDE's marketplace and install them with a single click.

Highly Recommended Plugins

Presentation Assistant

Displays keyboard shortcuts during screen recording or sharing, improving presentation clarity.

Codota – Code Intelligence

Provides AI‑driven code suggestions and lets you search for example snippets; also includes a web portal at https://www.codota.com/code.

Alibaba Java Code Guidelines

Enforces Alibaba’s Java coding standards and highlights violations, supporting both Chinese and English interfaces.

Translation – Essential Translation Plugin

Quickly translate selected text using shortcuts (Command+Ctrl+I on macOS, Ctrl+Shift+O on Windows/Linux).

SequenceDiagram

Generates call‑chain sequence diagrams via right‑click > Sequence Diagram, with clickable class and method names for source navigation.

Rainbow Brackets

Colors matching brackets differently to avoid mismatches.

HighlightBracketPair

Highlights the matching opening and closing brackets.

Grep Console

Highlights console logs for easier debugging.

google-java-format

Automatically formats Java code without manual shortcuts.

Key Promoter X

Shows the shortcut for the current action in the lower‑right corner of the IDE.

CodeGlance

Provides a miniature overview of the file, allowing fast navigation without scrolling.

Leetcode Editor

Enables solving LeetCode problems directly inside IDEA, making it convenient to practice algorithms during work.

Decorator Plugins

Material Theme UI

Offers a collection of modern UI themes for IntelliJ.

Power Mode II

Adds typing effects for a more engaging coding experience.

Convenient Plugins

RoboPOJOGenerator

Generates POJOs from JSON (alternative to GsonFormat).

Statistic

Displays project‑wide file type statistics at a glance.

CamelCase

Switches between different naming conventions.

jclasslib Bytecode Viewer

Shows compiled bytecode within IDEA for deeper inspection.

Auto filling Java call arguments

Press Alt+Enter to auto‑populate method parameters.

GenerateO2O

Automatically fills parameter values.

GenerateAllSetter

Calls all setter methods, optionally inserting default values.

Maven Helper

Helps resolve Maven dependency conflicts.

FindBugs

Detects potential bugs in code.

Stack trace to UML

Creates UML sequence and communication diagrams from JVM stack traces via Analyze > Open Stack trace to UML.

Java Stream Debugger

Visualizes Java Stream operations step by step.

RestfulToolkit

Provides quick navigation to Action methods.

JRebel for IntelliJ

Applies code changes instantly after a shortcut press.

String Manipulation

Offers various string case conversions, encoding/decoding, and other utilities via Alt+M.

Free MyBatis Plugin

Enables navigation from mapper interfaces to corresponding XML files.

IDEA QAPlug

Detects potential bugs early in the development process.

Benefits

Scan the QR code to receive a free "Programmer Book Collection" and access the source code of a book management system.