Top Rated for RubyMine

Illuminated Cloud 2

Illuminated Cloud brings the modern feature set of JetBrains' powerful IDEs to Salesforce development.

Grazi

Provides intelligent spelling and grammar checks for text that you write in the IDE.

Android ButterKnife Zelezny

Plugin for generating ButterKnife injections from selected layout XMLs in activities/fragments/adapters.

Tab Shifter

This is a plugin with a bunch of actions to move tabs between editor splits and resize splits. Actions are added to "Main Menu -> Window -> Tab Shifter".

Elm

Provides support for the Elm programming language.

Free MyBatis plugin

Free Mybatis plugin.

Protobuf Support

Google Protobuf support for JetBrains products.

Spacegray Theme

Spacegray theme for IntelliJ, inspired by one made by Gadzhi Kharkharov for SublimeText.