Word cloud in qlikview can be achieved using extension objects. For word cloud, download the extension objects from below link:
Now, follow the below steps to generate word cloud in qlikview:
Step-1: Enable WebView, go to View Menu --> Turn on/off WebView. It is required because extensions can used in the AJAX client or WebView mode only.
Step-2: Right-click on sheet and select New Sheet Object --> open the Extension Objects pane and drag the extension (TagCloud.qar, available in downloaded zip file) to the sheet.
Step-3: Now, you can select the word field for which you want to create word cloud.