gerhard

This plugin is currently aimed at developers so it doesn’t come with any CSS or JavaScript, it just ads the DIVs for the columns, the rest is up to the developer’s imagination. This will allow developers to easily add column functionality to custom WordPress implementations.
<h3>Usage</h3>
How do users use it?
To split the content into columns, you simply add the shortcode [columnbreak] where you want the one column to end and the next one to start.
It will add a container around the columns with the class ‘ninja_columns’ and the class ‘colsid_{post-id}’ that will allow you to target the post or page specifically.

Ninja Columns

The plugin will allow users to easily split content into columns using short-codes.

simplethemes

This plugin works with any theme, but was made specifically to work with themes from <a href="http://www.simplethemes.com/" rel="nofollow ugc">simplethemes.com</a>. Simple Shortcodes adds a button to your editor toolbar for quick and easy insertion of the most commonly used shortcodes for columns, buttons, toggles, tabs, callout boxes, notifications, and more.

Simple Shortcodes

Simple Shortcodes is a plugin that fits nicely in your editor toolbar for simple insertion of various commonly used shortcodes.

Ninja Columns vs Simple Shortcodes