1. A computer system for managing personal communication data, wherein the personal communication data comprises a plurality of chat histories from a plurality of chat applications, the computer system comprising: one or more processors, one or more computer-readable memories, one or more computer-readable tangible storage devices, and program instructions stored on at least one of the one or more storage devices for execution by at least one of the one or more processors via at least one of the one or more memories, wherein the computer system is capable of performing a method comprising: converting a first chat history from a first application and a second chat history from a second application into an integrated unified format, wherein the second application is different from the first application and the first chat history is in a different language than the second chat history, and wherein converting the first chat history and the second chat history into an integrated unified format comprises: decoding encoded portions of the first chat history and the second chat history to a unified code set; determining if a duplicate chat history exists between the first chat history and the second chat history; and in response to determining the duplicate chat history exists, performing content deduplication to delete a plurality of duplicate content between the first chat history and the second chat history; storing the integrated unified format into an indexed storage; providing a user interface (UI) to access the integrated unified format via the indexed storage; receiving a plurality of predefined integrating rules; monitoring a plurality of chat events associated with the first application and the second application, wherein the monitoring of the plurality of chat events occurs in place of the plurality of chat events being stored as the first chat history associated with the first application or as a second chat history associated with the second application; aggregating the monitored plurality of chat events based on the received integrating rules; converting the aggregated monitored plurality of chat events into the integrated unified format; storing the converted monitored plurality of chat events in the indexed storage; receiving a chat history retrieval query to retrieve a subset of the stored plurality of chat events from the indexed storage, wherein the received chat history retrieval query comprises a plurality of input keywords entered via the provided UI; searching the indexed storage for the subset of the monitored plurality of chat events, wherein searching the indexed storage comprises searching the subset of the monitored plurality of chat events for a plurality of chat histories that matches the entered plurality of input keywords; retrieving the plurality of chat histories that matches the entered plurality of input keywords from the indexed storage based on the plurality of chat histories matching the entered plurality of input keywords; and displaying the retrieved plurality of chat histories via the UI.