Top 10 Best Opensource Helpdesk Software of 2026

Zammad is a robust open-source helpdesk and ticketing system that enables teams to manage customer support across multiple channels including email, chat, social media, telephony, and web forms. It features a modern web interface for ticket handling, automation rules, reporting, and a built-in knowledge base to streamline support workflows. Fully customizable and scalable, Zammad supports self-hosting or cloud deployment, making it ideal for organizations seeking control over their data.

osTicket is a free, open-source helpdesk ticketing system that streamlines customer support by converting emails, web forms, and phone requests into manageable tickets. It offers robust features like automated routing, SLA management, custom queues, reporting, and task management for efficient team collaboration. Self-hosted on PHP/MySQL, it's highly customizable via plugins and APIs, making it suitable for organizations seeking scalable support without vendor lock-in.

Chatwoot is an open-source customer engagement platform that serves as a modern helpdesk solution, unifying conversations from multiple channels like live chat, email, WhatsApp, Facebook Messenger, Twitter, Telegram, and SMS into a single shared inbox. It empowers support teams with collaboration tools such as assignees, labels, canned responses, automation macros, and basic reporting to efficiently manage customer interactions. As a self-hosted alternative to proprietary tools like Intercom or Zendesk, it emphasizes privacy, customization, and scalability for growing businesses.

FreeScout is a free, open-source helpdesk and shared mailbox software that turns email inboxes into collaborative ticket systems for customer support teams. It supports features like conversation threading, custom fields, automation rules, canned responses, and reporting, all self-hosted on your own server. With a modular architecture, it allows extensions via a marketplace for added functionality without compromising the core free version.

UVdesk is an open-source helpdesk software built on Symfony, designed for managing customer support tickets across multiple channels like email, social media, and chat. It provides tools for ticket workflows, knowledge base creation, SLA management, reporting, and automation rules to streamline support operations. Fully self-hosted and customizable, it's ideal for businesses seeking control over their helpdesk without vendor lock-in.

Znuny is a mature open-source helpdesk and IT service management (ITSM) solution forked from OTRS, offering robust ticketing, queue management, and automation for customer support and ITIL-compliant processes. It includes advanced features like a Configuration Management Database (CMDB), process management, reporting dashboards, and email-to-ticket integration. With extensive customization options via Perl modules and a strong community, it's designed for organizations needing scalable, self-hosted service management without licensing costs.

Helpy is an open-source, self-hosted helpdesk platform that combines ticket management, a knowledge base, and community forums into a single Ruby on Rails application. It supports multi-channel customer interactions via email, web widgets, live chat, and social media, enabling teams to provide efficient support while fostering self-service. Fully customizable, it's ideal for organizations prioritizing data privacy and avoiding vendor lock-in.

OTOBO is an open-source helpdesk and IT service management platform forked from OTRS, providing comprehensive ticketing, queue management, and automation for customer support and ITIL-compliant processes. It includes a built-in CMDB for asset tracking, process designer for workflows, and integrations for email, chat, and telephony. Suitable for scaling from small teams to enterprises with customizable modules and reporting tools.

GLPI is a mature open-source IT Service Management (ITSM) platform that excels as a helpdesk solution with integrated ticketing, asset management, and CMDB capabilities. It enables efficient handling of incidents, service requests, changes, and problems while tracking IT inventory across hardware, software, and networks. With robust reporting, SLA management, and a vast plugin ecosystem, GLPI supports scalable IT operations for organizations of varying sizes.

Request Tracker (RT) is a mature open-source ticketing system from Best Practical, primarily used for helpdesk, IT service management, and customer support operations. It supports robust queue management, email integration, custom fields, and workflow automation through scrips. While highly scalable and customizable, it demands technical expertise for setup and ongoing maintenance.