CodeCanyon - Visual Sidebar Editor v1.0.2 for Wordpress

Visual Sidebar Editor bring the power of Visual Composer: Page Builder for WordPress or The TinyMCE Editor into the life of your website sidebars, and let you manage their content the same way you do for posts and pages.
You can now take full control of your sidebars content with unlimited possibilities, you can use visual composer and it's awesome Drag & Drop interface with 40+ built-in shortcodes or custom add-ons, but you can also use free HTML editor and replace your sidebar content as you wish.