Open Source PHP Communications Software

SquirrelMail is a PHP-based Web email client. It includes built-in pure PHP support for IMAP and SMTP, and renders all pages in pure HTML 4.0 for maximum compatibility across browsers. It has strong MIME support and a flexible plugin system.

MRBS is a system for multi-site booking of meeting rooms. Rooms are grouped by building/area and shown in a side-by-side view. Although the goal was initially to book rooms, MRBS can also be used to book any resource; computers, planes, whatever you want

Multiuser HylaFAX PHP/MySQL Web interface for viewing faxes online, downloading & emailing in PDF format, and categorizing & archiving all sent and received faxes.

phpFreeChat is a free, simple to install, fast and customizable chat that uses by default files for message and nickname storage. It uses AJAX to smoothly refresh and display the chat zone and the nickname zone.

NOCC is a simple and fast Webmail client which can handle POP3 and IMAP mailboxes and sends email via SMTP. It is written with PHP, has low requirements (no database, frames). Features multi-language support, MIME attachments, displays HTML messages. The installation guide comes with the source code: https://sourceforge.net/p/nocc/code/HEAD/tree/trunk/webmail/docs/INSTALL If you encounter problems or bugs you can always try the current HEAD version: https://sourceforge.net/p/nocc/code/HEAD/tarball?path= Questions, bug reports or support requests are very welcome: https://sourceforge.net/p/nocc/_list/tickets Alternative source code repository: https://github.com/oheil/NOCC

Simple, web-based address & phone book, contact manager, organizer. Groups, addresses, e-Mails, phone numbers & birthdays. vCards, LDIF, Excel, iPhone, Gmail & Google-Maps supported. PHP / MySQL based.

phpMyChat-Plus is an easy-to-install, easy-to-use multi-room PHP/DB chat. It is currently available for MySQLi, MariaDB, PostgreSQL, and ODBC. It supports IRC-like commands, moderators, is available in 24 languages and fully compatible with php7.

Dokeos is an elearning and course management web application (LMS), translated in 34 languages, already helping thousands of organisations worldwide to manage learning and collaboration activities.

FUDforum is a super fast and scalable discussion forum. It is highly customizable and supports unlimited members, forums, posts, topics, polls & attachments. It can import XML Feeds and sync with USENET groups and Mailing Lists (bi-directional).

Mibew Messenger is an open-source live support application allowing visitors of your site to chat with your operators.

OPEN SOURCE BULLETIN BOARD SOFTWARE BrevisBB is a free lightweight-forum bulletin board software solution that can be used to stay in touch with a group of people or can power your entire website. Features: PM, Social Network... http://brevisbb.iz.rs

MOVED: This project has moved to https://github.com/Frug/AJAX-Chat AJAX Chat is a fully customizable web chat implemented in JavaScript, PHP and MySQL which integrates nicely with common forum systems like phpBB, MyBB, PunBB, SMF and vBulletin. A Flash and Ruby based socket connection can be used to boost performance.

IRC Client written in PHP that can be installed on web server to replace popular "JAVA chat" applications. Warning: not recommended for shared hosting packages because they usually don't allow irc.

An easy to use PHP system, requires no databases. It can display all, or selected files and subdirectories in a specified directory. Comes in both a basic listing version, and a much more extravagant management version with users and permission schemes.

LimeSurvey is a survey software to create online surveys. Features open/closed surveys, branching, participant administration, quotas, WYSIWYG HTML editor, email invitations & reminders, assessments, basic statistics and more.

Roundcube Webmail is a browser-based, multilingual IMAP client with an application-like user interface. Roundcube provides the full functionality you'd expect from an email client, including MIME support, address book, folder manipulation, message searching, and spell check. Roundcube is written in PHP and JavaScript.

XMB [eXtreme Message Board] is a PHP forum with all the features you need to support a growing online community. With outstanding community support and contribution, you will find XMB to be easy to setup, customize, enhance and use. Though XMB is lightweight out of the box, it offers the key features you need to get your message board forum up and running. php forum, php forum script, forum software, bbs - XMB Forum is all of the above. XMB forum software is free, open source and runs PHP scripts with a MySQL database or MariaDB backend. A great alternative to other forums like PHPBB, SMF, vBulletin, XenForo, Invision, MyBB, bbPress, Vanilla, Discuz.

cybyd is modded version of xBTiT

A collection of software made by Milos Rancic.

txtForum is a small forum that uses flat files to store all the data for the forum. Great if you don`t have an access to a database!