RealMint is an ANSI terminal emulator and telnet client written completely in JavaScript. When installed, RealMint lets you login to your server from a web browser using telnet and an encrypted HTTPS tunnel.
Wetnet - Web and Wireless Telnet
Wetnet alows people to access telnet services over the web and via wap browsers, giving you full access to the internet over any web-enabled device such as public web access terminals and wap enabled phones.
A "Clientless" VNC solution implemented with Ajax technology. You can remote your PC anywhere without pre-installing any client. As it is purely HTTP, you can VNC even behind firewall or proxy. Java VNC server able to run on Windows/Mac/Linux.
h3270 is a program that allows you to use IBM 3270 hosts from within a web browser. It is different from other, similar systems because of its highly configurable layout engine that is based on regular expressions.