TCSS is a bash script used for traffic management on Linux 2.4 and 2.6 kernels. It supports groups, multiport rules, minimun and burst rates, prioritization and can make use of layer7 filtering too.
http://sourceforge.net/projects/tcss/
WebHTB is a software suite that helps simplify the difficult process of bandwidth allocation, for both upload and download traffic: generates and checks configuration files and displays real time traffic overview for each separate client.
https://www.webhtb.ro/
T-HTB FREE web interface, built in PHP, simple Java Script, Ajax, Nested set model MySQL, rrd graph, create tc command using iptables CLASSIFY
http://sourceforge.net/projects/t-htbmanager/
WANem is a Wide Area Network Emulator, meant to provide a real experience of a Wide Area Network/Internet, during application development / testing over a LAN environment. WANem allows the application development team to setup a transparent application gateway which can be used to simulate WAN characteristics like Network delay, Packet loss, Packet corruption, Disconnections, Packet re-ordering, Jitter, etc.
http://wanem.sourceforge.net/