Skyperious is a Skype database viewer and merger. It can open local Skype SQLite databases and look at their contents; search across all messages and contacts; browse, filter, and export chat histories; see chat statistics; view any database table and and export its data; change, add, or delete data in any table; and execute direct SQL queries. It can also compare two Skype databases, show the differences in chats and contacts, and copy any spotted differences from one database to another. It uses local database files to keep its chat history, and older messages tend to get lost as computers get upgraded or changed. It was initially written to import old chat messages from such files.