Hesk is a PHP helpdesk software that runs with a MySQL database. It allows you to setup a ticket based support system (helpdesk) for your website. Your customers are able to submit support tickets and the staff has a nice web based interface to reply to and manage tickets. Features include multiple staff logins, categories, powerful ticket search functions, file attachments, custom fields, canned responses, easy-to-use web interface and more. You can completely customize the look of Hesk by editing header, footer and style files! Hesk has been translated to various languages and can be easily translated to your language simply by editing one language file. Hesk comes with an installation file which will help you setup your database and script correctly with little effort.

Trellis Desk is a user-friendly, clean, but powerful help desk system. It has many features, including custom department / profile fields, rich text editor support, ACP permissions, department permissions, escalation control, RSS feeds, statistics, advanced logging, email piping, guest ticketing, canned replies, custom pages, API / module support and much more. Knowledge Base categories and departments make it easier to find content. Email piping allows support / ticket management all through email. You can also use the skin and language manager, to customize the look & feel of Trellis Desk to fit your website.

eTicket is an electronic support ticket system for PHP, that can receive tickets via email (pop3 or pipe) and a web-based form, as well as manage them using a web interface, with many new features and bug fixes.

QuickTicket, the advanced trouble-tickets and helpdesk management system. Includes, disptaching, automatic notification, calendar planning, management reporting. Also allow location of tickets on map/satellite image (Google). Support several languages: EN, FR, NL. Support several databases: MySQL, SQL server, PostgreSQL, Oracle, FireBird, SQLite, Informix, DB2 and Access.

Easy to install and use. PHP and MySQL web based application help desk, software for the management of trouble tickets and custom service, includes live chat.

aTicket is a Web based support ticket system derived from eTicket and osTicket, under active development and support. It enables submission of problems by email or the Web, and utilises a flexible user tracking system based entirely on email address and ticket number. Powerful web based ticket management, with multiple categories and support people. Open source - GPL v.2. Requires PHP5 and MySQL.

AgileBill features a powerful ticket system that seamlessly integrates with its comprehensive billing and account management tools geared for multiple industries, including digital goods, web hosts, ISPs, and VOIP providers. The Ticket system supports e-mail piping via POP and IMAP accounts, unlimited staff with configurable permissions, unlimited departments with customizable group requirements so you can sell access to clients needing varying support levels, as well as powerful search and reporting capabilities. With AgileBill, there is no need to maintain separate systems for account registration, management, and authentication as it handles all this as well as billing, invoicing, and reporting on the commerce side. Other available plugins for AgileBill include Affiliates, Campaign Tracking, Web Hosting & Domain Automation, Integration with popular CMS and Forum Systems, Content Protection for sellers of Digital Goods, and much more.

KubeSupport allows you to provide support to your customers via Tickets, Manauls, Knowledgebase and other features. Edit the full layout and design of you support center using easy to edit templates. Install the script in minutes with the easy to use installation wizard. Create tickets via the easy to use web interface or via email. Convert to any language using the easy to edit language files.