SharePoint View Boost : a free SharePoint view web part enables users to collapse and expand SharePoint columns in SharePoint Standard List Views.

Collapse SharePoint columns on SharePoint list view;
Expand SharePoint columns on SharePoint list view.

SharePoint View Boost is a free tool to enhance user experience on SharePoint list view. Currently it can wrap column headers and expand columns in a standard SharePoint view. When a standard view contains too many columns, there will be a horizontal scrollbar on the browser and you should drag it to see more SharePoint columns. It is inconvenient when you want to see all related columns temporarily with no dragging and no new SharePoint list view. The above problem can be solved by SharePoint View Boost. With it, you can just click a menu item in the Actions menu and there will be "collapse/expand" button on the top of every column in the view header. By clicking the "collapse/expand" button, you can wrap column header or expand the column.