Magento 1 Extensions and Tools

Easy Ajax - Allow developers send ajax requests and receive json response without any php code.
MTool - Generates usual parts of magento extensions, including table entities, grids and edit forms.
Ajax Cart (based on Easy Ajax) - Example of using Easy Ajax: ajax cart developed using only one javascript file.
Custom Menu - Allow to configure magento menu as you want using admin panel including links to cms pages, categories and external web-sites.
Scheduled Content - Show different static content in different time intervals, very useful for promotions and start selling new items.