The best free alternative to ZOC is PuTTY, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 50 alternatives to ZOC and many of them is free so hopefully you can find a suitable replacement. Other interesting free alternatives to ZOC are OpenSSH (Free, Open Source), MobaXterm (Freemium), Terminator (Free, Open Source) and Hyper (Free, Open Source).
lterm is a vte-based terminal emulator for GNU/Linux systems. It is mainly used as ssh/telnet client but can be very easily configured to use any other protocol. Furthermore it can be a usual terminal on local host.
A terminal with Autocomplete - IntelliSense in your terminal: Navigate by entering the name of your desired directory. See where you are going. - Tabs & Cells: Two things make up a cell: the prompt and the output. You can also reuse your cells.