1. A computer-implemented system including a hardware processor and a memory for migrating data for web content management (WCM) systems from a first WCM platform to a second WCM platform, comprising: a first connector module in digital communication with a first WCM platform to retrieve data from the first WCM platform, the first connector module translates the retrieved data from a format for the first WCM platform to a standardized format for the system, resulting in pre-migrated standardized data; a migration engine in digital communication with the first connector module, in which the migration engine receives the pre-migrated standardized data from the first connector module and transforms said pre-migrated standardized data to post-migrated standardized data, in which said post-migrated standardized data include migrated templates from a first WCM platform to a second WCM platform; a template mapper in digital communication with the first connector module and the migration engine, in which the template mapper identifies a plurality of origin templates of the first WCM platform and creates a mapped relationship between the plurality of origin templates and a plurality of target templates of the second WCM platform, and said mapped relationship is communicated to the migration engine to facilitate migration of the origin templates to the target templates, resulting in said post-migrated standardized data; and a second connector module in digital communication with the migration engine and with the second WCM platform, wherein the second connector module translates the post-migrated standardized data to a format for the second WCM platform.