Best Open-source Customer Support & Helpdesk tools

Erxes

Experience Operating System unifying marketing, sales, operations, and support

iTop

Web-based IT service management platform with CMDB and helpdesk

FreeScout

Free self-hosted help desk and shared inbox alternative

Libredesk

Self-hosted customer support desk in a single binary

Zammad

Unified web‑based helpdesk for email, chat, phone, social

Frappe Helpdesk

Open-source ticket management for streamlined customer support

Znuny

Sustainable, community‑driven ticketing system for modern support teams

Trudesk

Simple, self‑hosted ticketing system for organized support

UVdesk

Customizable Symfony‑based helpdesk platform for seamless customer support

Peppermint

Self-hosted ticketing system with markdown notes and Docker deployment

OpenSupports

Simple, beautiful ticket system for every support team

Helpy

Modern helpdesk platform combining ticketing, knowledgebase, and community forums