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Znuny

Free, open-source ticketing system that continues the old OTRS Community Edition.

Open sourceCustomer support and live chat software
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About Znuny

Znuny is an open-source, web-based ticketing system for customer service, help desks and IT service management. It began as a fork of the ((OTRS)) Community Edition after OTRS stopped publishing it, and it gives former OTRS users a free path forward: a long-term-support line keeps the 6.x branch patched, while newer versions add features such as SAML login and optional self-hosted AI summaries. It runs on your own Linux server, is written in Perl, and is licensed under the GPL, so there are no per-agent fees. The company behind it, Znuny GmbH, sells professional services such as support contracts, hosting and migration help for organisations that want a vendor behind their install. It fits teams that liked OTRS's queue-based workflow and deep configuration but want to keep their data on their own servers without a commercial licence.

Best for: Teams migrating from OTRS Community Edition or wanting a free, self-hosted ITSM ticket system.

Pros and cons

What works

  • Free and GPL-licensed with no per-agent fees
  • Straightforward migration path for old OTRS installs
  • Long-term-support releases alongside a feature branch

Why people leave

  • You have to run and maintain the Linux server yourself unless you pay for services
  • Interface looks dated next to newer cloud help desks
  • Configuration is complex, much like OTRS

Top Znuny alternatives

See all 5
  1. 1OTRS logo
    OTRS

    The commercial product Znuny forked from, with vendor-managed hosting and support included.

    66.5
  2. 2Zammad logo
    Zammad

    Another open-source help desk, with a more modern interface and a hosted option.

    64.8
  3. 3osTicket logo
    osTicket

    Simpler free ticketing for teams that find Znuny's configuration too heavy.

    61.8
  4. 4FreeScout logo
    FreeScout

    Lightweight self-hosted shared inbox for email support, easy to run on cheap hosting.

    59.4
  5. 5Jira Service Management logo
    Jira Service Management

    Hosted ITSM desk for teams that want to stop maintaining their own server.

    57.5

Why people left Znuny

In reviewers' own words, from reviews of the apps they moved to. These are their opinions, not ours.

No switching stories yet. If you moved away from Znuny, review the app you switched to and tell us why.

Reviews

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Znuny: common questions

Is Znuny free?

Yes. Znuny is free, open-source software.

Is Znuny open source?

No, Znuny is not open source. Open-source alternatives include Zammad, osTicket and FreeScout.

What platforms does Znuny run on?

Znuny is available for Self-hosted and Web.

What are the best alternatives to Znuny?

The highest-ranked Znuny alternatives right now are OTRS, Zammad and osTicket. See the full ranked list for pricing, platforms and verified facts.

See all 5 Znuny alternatives