SeekQuarry

SeekQuarry is the parent site for Yioop!. Yioop! is a GPLv3, open source, PHP search engine. Yioop! can be configured as either a general purpose search engine for the whole web or it can be configured to provide search results for a set of urls or domains.  

Sphinx

Sphinx is an open source full text search server, designed from the ground up with performance, relevance (aka search quality), and integration simplicity in mind. It's written in C++ and works on Linux (RedHat, Ubuntu, etc), Windows, MacOS, Solaris, FreeBSD, and a few oth...

Snoopy

 Snoopy is a PHP class that simulates a web browser. It automates the task of retrieving web page content and posting forms, for example.  

RiSearch PHP

RiSearch PHP is effective and fully-functional search script for small and medium sites. It is fast enough to search 5000-10000 of pages in less then one second. RiSearch is indexing search engine, which means that it index your site first and creates a database with all words...

Sphider

Sphider is a lightweight web spider and search engine written in PHP, using MySQL as its back end database. It is a great tool for adding search functionality to your web site or building your custom search engine. Sphider is small, easy to set up and modify, and is used in th...

OpenWebSpider

OpenWebSpider is an Open Source multi-threaded Web Spider (robot, crawler) and search engine with a lot of interesting features!

PhpDig

PhpDig is a web spider and search engine written in PHP, using a MySQL database and flat file support. PhpDig builds a glossary with words found in indexed pages. On a search query, it displays a result page containing the search keys, ranked by occurrence. This site has a...

phpBugTracker

phpBugTracker is a web-based bug tracker with functionality similar to other issue tracking systems, such as Bugzilla. Design focuses on separating the presentation, application, and database layers. phpBugTracker is lightweight and easy to install, operate and administer....

Eventum

Eventum is a user-friendly and flexible issue tracking system that can be used by a support department to track incoming technical support requests, or by a software development team to quickly organize tasks and bugs.

MantisBT

MantisBT is a free popular web-based bugtracking system (feature list). It is written in the PHP scripting language and works with MySQL, MS SQL, and PostgreSQL databases and a webserver. MantisBT has been installed on Windows, Linux, Mac OS, OS/2, and others. Almost any web b...