Deep insight into your code
IntelliJ IDEA analyzes your code, looking for connections between symbols across all project files and languages. Using this information it provides indepth coding assistance, quick navigation, clever error analysis, and, of course, refactorings.

• Smart completion
• Chain completion
• Static members completion
• Data flow analysis
• Language injection
• Cross-language refactorings
• Detecting duplicates
• Inspections and quick-fixes

Developer ergonomics
Every aspect of IntelliJ IDEA is designed with ergonomics in mind. IntelliJ IDEA is built on a principle that every minute a developer spends in the flow is a good minute, and things that break developers out of that flow are bad and should be avoided.

• Editor-centric environment
• Shortcuts for everything
• Ergonomic user interface
• Inline debugger

Built-in developer tools
To streamline your workflow, IntelliJ IDEA offers an unbeatable toolset right from the first start: decompiler, bytecode viewer, FTP and many more.

• Version control
• Build tools
• Test runner and coverage
• Decompiler
• Terminal
• Database tools
• Application servers
• Docker

Polyglot experience
In addition to Java, IntelliJ IDEA offers first-class support for top JVM and non-JVM frameworks and languages out of the box.

• First-class support for top frameworks
• Many languages–one IDE

Windows

• Microsoft Windows 10/8/7/Vista/2003/XP (incl.64-bit)
• 2 GB RAM minimum, 4 GB RAM recommended
• 1.5 GB hard disk space + at least 1 GB for caches
• 1024x768 minimum screen resolution

Mac OS X

• macOS 10.8.3 or higher
• 2 GB RAM minimum, 4 GB RAM recommended
• 1.5 GB hard disk space + at least 1 GB for caches
• 1024x768 minimum screen resolution

Linux

• GNOME or KDE desktop
• 2 GB RAM minimum, 4 GB RAM recommended
• 1.5 GB hard disk space + at least 1 GB for caches
• 1024x768 minimum screen resolution

►IDEs

	IntelliJ IDEA IntelliJ IDEA 被認為是當前 Java 開發效率最快的 IDE 工具。它整合了開發過程中實用的眾多功能，幾乎可以不用滑鼠可以方便的完成你要做的任何事情，最大程度的加快開發的速度。簡單而又功能強大。與其他的一些繁冗而複雜的 IDE 工具有鮮明的對比。
	PhpStorm PhpStorm 填補了 PHP 開發智慧 IDE 的長期空白，提供了開發者不可少的工具，如自動化重構、深層代碼分析、聯機錯誤檢查和快速修復。也關注於更多的智慧性，並提供更好的代碼質量保證，並支援最新的 PHP 趨勢。
	PyCharm PyCharm 具有智慧代碼編輯器，能理解 Python 的特性並提供卓越的生產力推進工具：自動代碼格式化、代碼完成、重構、自動導入和一鍵代碼導航等。這些功能在先進代碼分析程式的支援下，使 PyCharm 成為 Python 專業開發人員和剛起步人員使用的有力工具。
	RubyMine Ruby 和 Rails 是 IDE 中提供給開發人員最重要的工具，RubyMine 將其整合在一起，提供方便的環境，以確保網絡與 Ruby 在 Rails 的發展。
	WebStorm WebStorm 是一款商業的 JavaScript 開發工具，用以開發網頁的好用網頁編輯器，讓您可以更方便的編輯 JavaScript 的語法，讓你編輯使用上更加快速！
	AppCode AppCode 是一個全新的 Objective-C 的整合式開發環境，用於幫助開發 Mac、iPone 和 iPad 的應用程式。
	CLion Cross-platform IDE for C/C++ developers providing superb coding assistance and enormous time savings.
	DataGrip  DataGrip 是一個跨平臺的資料庫工具，可在Windows，OS X 和 Linux上使用。 特性包含：          •編輯器提供針對SQL的智慧代碼協助工具，包含自動代碼完成，代碼分析，導航…等功能。          •查詢控制台（query console）提供資料庫查詢的執行及分析功能。          •資料表編輯器（table editor）提供流覽和運算元據的功能。          •提供管理資料表的操作介面。
	Rider 是一個基於IntelliJ平台和ReSharper的跨平台.NET IDE。 支持許多.NET項目類型 Rider支持.NET Framework，新的跨平台.NET Core和基於Mono的項目。這使您可以開發各種應用程式，包括.NET桌面應用程式，服務和庫，Unity games，Xamarin應用程式，ASP.NET和ASP.NET Core Web應用程式 功能豐富，速度快 Rider提供了2200多個實時代碼檢查，ReSharper帶來的數百個上下文操作和重構，並將它們與IntelliJ平台的可靠IDE功能相結合。儘管功能設置很重，但Rider的設計速度快，反應靈敏 跨平台 除了運行和調試多個運行時，Rider本身還可以在多個平台上運行：Windows，macOS和Linux。
	GoLand GoLand是JetBrains的新商業IDE，旨在為Go開發提供符合人體工程學的環境。新的IDE擴展了IntelliJ平台，具有針對Go語言的編碼幫助和工具集成。 編碼協助/人體工學設計/集成工具/IntelliJ plugin ecosystem
	Datalore Datalore, an intelligent web application for data analysis. Explore datasets, build powerful predictive models, create rich visualizations and invite colleagues to get better insights.

►.NET

	ReSharper ReSharper 是智能化的微軟 Visual Studio 外掛程式。ReSharper 保持和增進 C#、VB.net、XML、Asp.net、XAML 構建腳本。ReSharper 還為 C# 和 VB.net 提供增強的交叉語言功能，它使開發者可以有效的控制 .net 混合項目。並可以檢測與移除錯誤代碼、加速編碼，及提供豐富的導航和搜索功能。
	ReSharper C++ The Visual Studio Extension for C++ Developers ReSharper的C ++使得Visual Studio的C ++開發一個更好的IDE，提供有關即時代碼分析，快速修復，強大的搜索和導航，智能代碼完成，重構，各種代碼生成選項和其他功能，讓你每天增加生產率。
	dotPeek Free .NET decompiler and assembly browser that is empowered with ReSharper-style navigation and displays decompiled code as C#. It also enables creating Visual Studio projects from decompiled code, which facilitates reconstructing lost source code.

►Teamware

	TeamCity TeamCity 的是個連續的整合與建設管理解決方案，遵循著 IntelliJ IDEA 的傳統，軟件開發團隊將持續研究，為開發程式建造一個全新的水平。
	YouTrack YouTrack 是個鍵盤為中心的錯誤和問題追蹤Web應用程式，可以節省您在處理問題所花費的時間。使用 YouTrack 只要運用兩個簡單的控制：搜索框和命令視窗。
	Upsource Upsource is a repository browser and code review tool. It helps the development team browse source code in version control repositories, read and search for code in any revision, and improve code quality by conducting code reviews and discussing code changes. Upsource supports Git, Mercurial, Subversion and Perforce repositories.
	Hub JetBrains Hub is a server that handles authentication, authorization, users, groups, permissions, and projects across multiple installations of JetBrains team tools. It also provides a Dashboard to display the relevant data from all the services that connect with it, and provides a way to quickly set up repositories, build configurations and issue trackers for any new projects.

►Languages

	MPS Meta Programming System is an environment for professional software developers to create new custom languages, extend existing languages, and use them to develop programs. In particular, MPS is an instrument for creating Domain Specific Languages (DSLs). Domain experts who are not familiar with programming can easily use DSLs created with MPS.
	Kotlin Kotlin is a statically typed programming language that compiles to JVM byte codes and JavaScript. It is flexible, type-safe, expressive, Java-compatible and well-supported by tools such as IntelliJ IDEA, Ant and Maven.

	dotTrace dotTrace Performance 是一個簡單而快速的 NET 應用程式的性能和記憶體分析器。dotTrace 性能，比如函數執行時間，調用次數，消耗時間比率等，有助於 NET 開發人員選擇最佳的方式來優化他們的應用程式。
	dotMemory dottrace Memory 則是用來分析記憶體佔用情況。
	dotCover dotCover 是個 .NET 開發人員的代碼覆蓋工具，整合了 Visual Studio 和 ReSharper，簡單易用，是開發人員的最佳選擇方案。

Debugging lambdas

If the line you're adding a breakpoint to has a lambda expression, the IDE asks you where exactly you'd like to stop.

Improved UI for testing

The entire test runner tool window has been created from scratch to provide a unified interface for all languages, complete with inline statistics, vertical layout, test results history, and export/import actions.

Expression type

The Expression Type action, previously available only in Scala, now works for Java, Groovy and Kotlin expressions as well.

Available via Ctrl + Shift + P (Cmd + Shift + P for OS X) this is the easiest way to know the inferred type of any expression without touching the mouse.