Combodo/iTop

GLPI is a Free Asset and IT Management Software package, Data center management, ITIL Service Desk, licenses tracking and software auditing.

Enterprise-Grade OpenSource CMDB with flexible data model.

#1 Self hosted CMMS web & mobile application that allows you to manage enterprise maintenance for free - Computerized Maintenance Management System

蓝鲸智云配置平台(BlueKing CMDB)

OTOBO is one of the most flexible web-based ticketing systems used for Customer Service, Help Desk, IT Service Management. https://otobo.io/

All in One PSA for MSPs, which Unifies client, contact, vendor, asset, license, domain, ssl certificate, password, documentation, file, network and location management with ticketing and billing capabilities, with a client portal on the side.

Znuny is a free, open-source, and versatile web-based ticketing system for Customer Service, Help Desk, IT Service Management, and more. It is built for transparency and long-term sustainability and is highly tailorable to your organization's needs.

ITSM-流程服务管理，通过可自定义设计的流程管理，同时关联蓝鲸智云的基础平台、公共组件，以满足IT服务的管理活动和场景需要。帮助用户规范内部管理流程，并提升管理效率。

Exment is open source software for managing information assets on the Web. / Exmentは、情報資産をWeb上で管理するための、オープンソースソフトウェアです。