apt document containing list of installable packages

Is there online a textual (simple text, HTML, pdf...), updated document where it is listed all the software I can install using apt-get install?

Solution 1:

The Ubuntu Package Index lists available packages in the official repositories, their versions, the repositories they belong to, and other such details. There are links for browsing through available packages. The list of all packages is also available for each currently supported release (for example, the list for 14.04: http://packages.ubuntu.com/trusty/allpackages - beware, it's very long).

Solution 2:

You can obtain a list of all the packages available by typing the command:

apt-cache search .