Alternatives to Znuny
An open-source ticketing and service desk system forked from the OTRS Community Edition. The listings below can replace it for an important use case. Each note says what changes if you switch.
The original
Znuny
An open-source ticketing and service desk system forked from the OTRS Community Edition.
Replacements
Listings that take over the same core job as Znuny.
OTOBO
An open-source, web-based service management and help desk platform you can host yourself.
OTOBO is an open-source self-hosted help desk with ITIL-based ITSM processes and no licence costs, though its website content is mainly in German.
Zammad
A web-based open source help desk and ticketing system you install on your own server.
Zammad is an open-source help desk with Linux packages and Docker and detailed installation documentation, running on Linux servers only.
osTicket
A long-established open source support ticketing system that you host on your own server.
osTicket is a mature, widely used open-source self-hosted ticket system, though its website promotes a separate paid hosted product.
Request Tracker
An open-source ticketing system that turns support email into trackable tickets through a web interface.
Request Tracker is an open-source email-driven ticketing system with highly customisable workflows and built-in charts, with hosted plans available through sales.
GLPI
An open-source IT service management suite with help desk, asset inventory and CMDB.
GLPI is an open-source self-hosted suite pairing a help desk with asset inventory, a CMDB and plugins, which takes time to configure.
iTop
An open-source web application for IT service management and configuration management databases.
iTop is an AGPL-licensed self-hosted ITSM application that combines ticketing with a CMDB and low-code customisation, though data modelling takes effort.
FreeScout
A self-hosted open source help desk and shared inbox, modelled on Help Scout and Zendesk.
FreeScout is an open-source shared inbox with unlimited agents on ordinary PHP and MySQL hosting, lighter than a full service desk, with extras as modules.
Zendesk
A hosted customer and employee service platform for handling support tickets across channels.
Zendesk is a proprietary hosted service desk with multichannel tickets and a large integration marketplace, removing server maintenance but storing data with Zendesk.
Also worth comparing
These listings name Znuny as their own alternative, so the relationship runs both ways.
Faveo Helpdesk
A self-hosted open source ticketing system for support teams, built on the Laravel PHP framework.
Znuny is an open-source service desk continuing OTRS Community Edition, with long-term support and feature branches and frequent releases.
Freshservice
A cloud IT service management platform for help desk tickets, IT operations and asset management.
Znuny is an open-source self-hosted service desk forked from OTRS Community Edition, so you run the server instead of using a hosted service.
Jira Service Management
Atlassian's hosted IT service management tool for requests, incidents and change management.
Znuny is a free open-source self-hosted service desk forked from OTRS Community Edition, requiring you to set up and maintain the server.
ManageEngine ServiceDesk Plus
A service desk platform combining IT service management, asset management and a CMDB.
Znuny is a free open-source self-hosted service desk forked from OTRS Community Edition, focused on ticketing with long-term support releases.
Trudesk
An open source help desk with real-time tickets, built-in chat and email-to-ticket conversion.
Znuny is an open-source service desk continuing OTRS Community Edition, with a long-term support branch, aimed at organisations needing a fuller ticketing system.
UVdesk Open Source
A free open source PHP help desk built on Symfony, with email piping and a knowledge base.
Znuny is an open-source service desk forked from OTRS Community Edition, with a long-term support branch and frequent releases, aimed at organisations.