ACCESSdb is a JavaScript library used to dynamically connect to and query locally available Microsoft Access database files within Internet Explorer. All you need is an .mdb file; Access does not even need to be installed! All of the SQL queries available in Access can be executed on the fly, including SELECTs, INSERTs, UPDATEs, and JOINs. Results are output in several customizable formats including JSON, XML, and HTML.