Best Open-source Customer Support & Helpdesk tools

Erxes

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

Zammad

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

Libredesk

Self-hosted customer support desk in a single binary

iTop

Web-based IT service management platform with CMDB and helpdesk

Znuny

Sustainable, community‑driven ticketing system for modern support teams

Frappe Helpdesk

Open-source ticket management for streamlined customer support

FreeScout

Free self-hosted help desk and shared inbox alternative

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