What is "bitlet"

BitLet, abbreviation for BitTorrent Applet, is a BitTorrent program that enables the use of this file sharing protocol inside any Java-enabled web browser, without the need of an external dedicated client program. It is open-source software under the Apache License (ASL) 2.0. Prior to December 28, 2013, it was released under the GNU Lesser General Public License (LGPL) 2.1.