The Developer Plugins provide ease in developing your Wordpress theme as per your requirements. The main reason for using them is that you can configure your development environment using the single tool.
Here is the list six plugins & theme development tools
Developer Plugin
A plugin, which helps WordPress developers develop. This plugin will help you optimize your development environment by making sure that you have all the essential tools and plugins installed.
Shortcode Ultimate
Shortcodes Ultimate is WordPress plugin that provides a mega pack of shortcodes. This plugin performs like some premium plugin but absolutely for free. With this plugin, you can easily create tabs, buttons, boxes, different sliders, responsive videos and much, much more. Turn your free theme to premium in just a few clicks. Using Shortcodes Ultimate you can quickly and easily retrieve premium themes features and display it on your site.
Theme Demo Bar
WordPress Theme Demo Bar is a plugin for WordPress that allows any WordPress theme to be previewed without activating it. A demo bar would be shown on top of a page, allow users to preview another theme. The demo bar is customizable from admin panel. More than 1 extra CSS files can be loaded too.
Preserve Code Formatting
Preserve formatting of code for display by preventing its modification by WordPress and other plugins while also retaining whitespace.
Responsive Select Menu
The Responsive Select Menu plugin automatically turns any WordPress 3 Menu into a select box / dropdown on mobile devices.
Synchi
A full IDE inside your WordPress! Powerful IDE features in WP plugin editor, themes editor, articles HTML editor and text/HTML widgets editor.