The present disclosure discloses methods and systems for managing one or more annotations for a host application through an annotation tool. The annotation tool implements a user interface for users to create, store, access, share or display one or more annotations corresponding to a page of the host application. The annotation tool also implements a back-end interface for processing the one or more annotations created by the user. The annotation tool stores the one or more annotations, associates the one or more annotations with the page of the host application, and allows further retrieval of the one or more annotations from any user device.