UVdesk Opensource Community Helpdesk Project built for all to make a Full Ticketing Support System along with many more other features.
翻译 - 为所有人打造的开源UVDesk社区帮助台项目框架,旨在提供完整的票务支持系统。
Zammad is a web based open source helpdesk/customer support system
翻译 - Zammad是基于Web的开源帮助台/客户支持系统
Source available experience management infrastructure. Pioneering the future of experiences with XOS (Experience Operating System). Hubspot + Qualtrics alternative
FreeScout — Free self-hosted help desk & shared mailbox (Zendesk / Help Scout alternative)
翻译 - FreeScout —免费的自托管服务台和共享邮箱(Zendesk /帮助服务台替代品)