Top Rated for IntelliJ IDEA

Shifter

Detects type of selection, line or keyword at caret and shifts it "up" or "down" on keyboard shortcut.

Rainglow Color Schemes

A collection of color themes created by Dayle Rees for all JetBrains platforms.

JFormDesigner

Advanced Swing GUI designer.

Java Stream Debugger

In some ways, Stream API is better than traditional loop approach.

Eclipse Code Formatter

Allows using Eclipse's code formatter directly from IntelliJ.

Main Menu toggler

Main Menu visibility toggler for IDEs based on the IntelliJ platform.

Illuminated Cloud

Illuminated Cloud is a powerful Salesforce development tool hosted within JetBrains IntelliJ IDEA.

HashiCorp Terraform / HCL language support

This plugin adds support for HashiCorp Configuration Language (HCL) and HashiCorp Interpolation Language (HIL), as well as their combination used in Terraform...

Makefile support

Support for UNIX Makefiles.