New: Gopherus (Feb 14, 2023), Platform 24.1 (Feb 13, 2023)
450+ real apps (49GB), 1 billion downloads, Please donate.
I was gonna just make this programs that you can use on the web on restricted internet, but I decided to make it all kinds of fun apps written in an internet language that you can use on your site as well. Help me out. 
-RoundCube
-NeoMail
-Squirrel Mail
-Horde
FTP
-net2ftp
File Management
-PHP File Manager
...
Do you mean Content Management Systems? Then I suggest R3-Born It's based off of Phpbb but without the security flaws it comes with modules like Blogging and forum and more
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"I don't fear Computers. I fear the lack of them" Isaac Asimov
My Personal Blog in the making at a new address thibeaz.com 
A OpenSource Web based Operating System: EyeOS.
And I think he means real apps to use. Like Google Docs & Spreadsheets.
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The Blogger of Portimão now in English. And the Portuguese version can be found here.
Lilina is a standalone program, not a web app.
web BASED. Like CGI:IRC.
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