tmux is a terminal multiplexer
Testing TLS/SSL encryption anywhere on any port
Open source terminal session recorder
A cross-platform, GPU-accelerated terminal emulator
Cross-platform BBS (ANSI) Terminal
Run applications under pseudo-terminal (PTY) sessions
A MUD client for Android, iOS, Linux, Mac OS X and Windows
Serial <-> TCP/IP, Serial <-> UDP/IP, TCP/IP <-> UDP/IP
Amateur Radio AX.25 chat and PBBS program using Linux's AX.25 stack
Terminal client
ANSI sequence filter
Hexadecimal strings test tool
Terminal text colorizing and simplifies script coding.
Management & operating of AT-based (e.g. Sagem) mobile phones/modems
A free cross platform command prompt
It's like curl -v, with colours
Jexer - Java Text User Interface Library