The rendering of hierarchical data having large number of nodes, such as organizational charts, can present challenges based upon the browser technology utilized. Rendering of thousands of nodes can be memory intensive and provide poor performance when rendered in a browser. A method of rendering hierarchical data in a browser is provided. Node data from a datastore associated with human resources management software is retrieved. Each item of node data is associated with an employee of the associated organization. A viewport for the hierarchical data structure is determined based upon the computing device used for viewing the hierarchical data structure. Coordinates for nodes in the hierarchical structure based upon their relative position in the hierarchy and a configuration of the view port can then be determined and rendered.