This online tool allows users to convert JSON data, which is a widely-used, human-readable data interchange format, into BSON format. BSON is a binary representation of JSON data that is used by MongoDB to store data. By converting JSON to BSON online, users can more efficiently store and transmit their data using MongoDB without having to install any software. The tool can be accessed from any web browser and supports real-time conversion of JSON data to BSON format.