Toggle Em All is a solution that works in all tested web browsers (which were Firefox 3.x, Opera 9.x and Internet Explorer 8). The bookmarklet should work in most web browsers that have not been tested as well. Here is a short explanation of bookmarklets. They are small pieces of JavaScript code that can be added to the bookmarks of the web browser (or executed right in the address bar). Clicking on the bookmarklet will execute the code on the active website. In the case of the Toggle Em All bookmarklet it would mean that all check boxes would be ticked except for those that are already selected as those would be deselected.

To install it simply go to the Toggle Em All website. You have the option to drag and drop the bookmarklet to the bookmark’s toolbar or to right-click it and select to add the link to the bookmarks / favorites.

Once it has been added it is functional. A click on the new bookmark will reverse all check boxes on the active webpage. Users of the Firefox web browser can also take a look at the Check All add-on which offers better customizability as it allows to select the checkboxes that should be processed (in contrast to all or nothing offered by the bookmarklet).

Enter Checkfox. A Mozilla Firefox add-on that has been designed for users who work regularly with checkboxes. The add-on basically provides the means to check or uncheck multiple checkboxes at once. This is done by selecting the area of the page containing the checkboxes and right-clicking afterwards.

The right-click context menu will display options to check or to uncheck the checkboxes in the selected area. It will only display options to check or to uncheck the boxes if all are unchecked or checked.

Update: The extension will check or uncheck all selected items regardless of their initial state. There is no option to inverse the selection.

This enables quick check/uncheck of checkboxes.

To use, select area of page with checkbox(es), and then right-click. You should see Check and/or Uncheck depending on the clicked or unclicked state of the checkboxes.

Please note that the extension does not work on all pages with multiple checkboxes installed. I tried using it on Google Mail and it turned out that the check and uncheck option in the right-click context menu does not become available after highlighting the part of the page that contains the checkboxes.

Other users have reported that the extension does not not work on sites such as eBay, or on forms that have more than one checkbox per row.

The extension has been last updated in June 2011, which could indicate that the developer has stopped development.