Top Rated for PhpStorm

BrowseWordAtCaret

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

RegexpTester

Regular Expression Tester for IntelliJ IDEA.

Autoscroll Save

At last, a handy way to save your Autoscroll to/from Source settings :).

Elm language plugin

Plugin for Elm language support.

SQLScout (SQLite Support)

First-class SQLite support for Android Studio and IntelliJ IDEA.

Gerrit

Gerrit Code Review Tool Integration Only Gerrit 2.6 or newer is supported (missing / incomplete REST API in older versions) ...

Latte

Provides support for Latte – a template engine for PHP.

JS GraphQL

GraphQL language support including Relay.QL tagged templates in JavaScript and TypeScript.

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...