Top Rated

Grep Console

By meo
Change colors of matching text.

String Manipulation

Provides actions for text manipulation.

Nyan Progress Bar

Pretty progress bars for IJ based IDEs.

CodeGlance

Embeds a code minimap similar to the one found in Sublime into the editor pane.

PlantUML integration

PlantUML diagramming tool integration.

Shifter

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

Idea 2016.2 Icon Pack

By kb
Changes new modern icons to the old ones.

Eclipse Code Formatter

By meo
Allows using Eclipse's code formatter directly from IntelliJ.

Illuminated Cloud

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

Lines Sorter

Add Sort Lines action in Edit menu to sort selected lines or whole file if selection is empty.