Top Rated for PyCharm Professional

TabSwitch

Open files/tabs switcher to quickly switch between tabs with less keystrokes than Recent Files.

AureliaStorm

This plugin brings support for Aurelia framework to the IntelliJ platform Features.

Wrap to Column

Wraps text to the specified column width.

GitAlso

This plugin can predict the full set of files in the commit given only a part of it.

Changelist Organizer

By 4ch1m
Automatically organizes your modified files by moving them into predefined changelists.

Script Monkey

Script Monkey breaks the boundaries of Java and helps Java achieve the power & flexibilities of interpreted/dynamic languages.

JLink

Right-click anywhere in the editor and click 'JLink' to create (and copy to clipboard) a sharable link directly to the desired location in the code.

Multiple File Kotlin Converter

This IntelliJ IDEA plugin runs the native Convert Java File To Kotlin File action on multiple files.

Erlang

Erlang support for IntelliJ IDEA, RubyMine, WebStorm, etc.

FridayMario

The first plugin in the world to gamify development in IntelliJ IDEs.