Top Rated for Android Studio

Grep Console

Grep, tail, filter, highlight... everything you need for a console. Also can highlight the editor - nice for analyzing logs...

BrowseWordAtCaret

Allows to easily browse next/previous word at caret and highlight other appearances of selected word.

ADB Idea

Adds the following ADB commands to Android Studio and Intellij:.

hidpi-profiles

Plugin provides possibility to create several UI profiles for different screen resolutions and easily toggle between them.

Cyan Light Theme

A light theme in cyan tones. For version 2019.1 and above.

Quick File Preview

This plugin enables a quick file preview/open/edit on simple selecting files in Project View - similar to the preview in Sublime or VSCode.

GreenRobot EventBus

Support navigation for Java/Kotlin projects that uses greenrobot's EventBus library.

Idea 2016.2 Icon Pack

Changes new modern icons to the old ones.

LivePlugin

This is a plugin for IntelliJ IDEs to write plugins at runtime without having to restart IDE.

Zero Width Characters locator

Inspired by this question on Stack Overflow - this plugin adds an inspection that prevents some hard to find bugs related to invisible zero width characters in source...