ITFlow vs Znuny
A side-by-side comparison of two self-hosted helpdesk & ticketing options — licensing, setup difficulty, resource needs, and what each one replaces.
| Feature | ITFlow | Znuny |
|---|---|---|
| Deploy effort | Under-an-hour setup | Read-the-docs project |
| Health score | 82 · Excellent | 75 · Good |
| Category | Helpdesk & Ticketing | Helpdesk & Ticketing |
| License | MIT | GPL-3.0 |
| Language | PHP | Perl |
| Setup difficulty | Medium | Hard |
| Min. RAM | 512 MB | 2,048 MB |
| Deployment | docker, bare-metal | bare-metal, source |
| GitHub stars | ★ 1,006 | ★ 596 |
| First released | 2021 | 2021 |
| Replaces | ServiceNow, Jira Service Management | ServiceNow, Zendesk |
What are ITFlow and Znuny?
ITFlow
ITFlow is a self-hosted application for IT service providers that combines client documentation, asset tracking, and a ticketing system. It handles support tickets with categorization and priorities alongside a knowledge base.
- Incident and request tickets
- Built-in knowledge base
- Asset linkage
- Priority and category routing
Znuny
Znuny is an open-source ticketing system and service desk maintained as a free fork of OTRS Community Edition. It supports helpdesk and ITSM workflows.
- Maintained OTRS fork
- Helpdesk and ITSM
- Customizable workflows
- Active community support
ITFlow vs Znuny: key differences
ITFlow is written in PHP, while Znuny is built with Perl. Licensing differs — MIT for ITFlow versus GPL-3.0 for Znuny. ITFlow is the lighter option, starting around 512 MB of RAM against 2,048 MB for Znuny. ITFlow lists first-class Docker deployment; Znuny does not.
Why pick each one
Choose ITFlow if…
- Released under the MIT license
- First-class Docker support for quick deployment
- Active community (1k GitHub stars)
- Written in PHP
Frequently asked questions
Is ITFlow or Znuny better?
ITFlow is the stronger all-round pick: it has both the larger community and the simpler medium setup. Consider Znuny if its specific feature set fits your needs better.
Are ITFlow and Znuny free and open-source?
Yes. ITFlow is licensed under MIT and Znuny under GPL-3.0. Both can be self-hosted at no software cost.
Can I run ITFlow and Znuny with Docker?
ITFlow: yes. Znuny: check the project docs for container support.
Which is lighter on resources, ITFlow or Znuny?
ITFlow has the smaller minimum footprint at 512 MB of RAM, compared to about 2,048 MB for Znuny. Real-world usage depends on library size, user count, and enabled features.