head to head · open source
glpi vs Zammad
glpi has 6,548 GitHub stars, 1,852 forks, 458 open issues and last shipped yesterday. Zammad has 6,067 stars, 1,093 forks, 451 open issues and last shipped yesterday. glpi leads on adoption by 8% (6,548 vs 6,067 stars). glpi is written in PHP under GPL-3.0; Zammad is written in Ruby under AGPL-3.0. glpi has attracted 28% as many forks as stars, Zammad 18%. Zammad was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (helpdesk), so they are genuine substitutes rather than adjacent tools.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| glpi | Zammad | |
|---|---|---|
| GitHub stars | ★ 6.5K | ★ 6.1K |
| License | GPL-3.0 | AGPL-3.0 |
| Written in | PHP | Ruby |
| Last push | 2026-11-02 | 2026-11-02 |
| Forks | ⑂ 1.9K | ⑂ 1.1K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick glpi if
- You weight community size — 6.5K stars and counting
- You want the GPL-3.0 license terms
- Your stack matches PHP
- You value the larger contributor base for long-term maintenance
pick Zammad if
- You want the Zammad feature set and don't need the biggest community
- You prefer the AGPL-3.0 license terms
- Your stack matches Ruby
- You evaluated both and Zammad fits your workflow better
About glpi
About GLPI GLPI stands for Gestionnaire Libre de Parc Informatique is a Free Asset and IT Management Software package, that provides ITIL Service Desk features, licenses tracking and software auditing. Major GLPI Features: Service Asset and Configuration Management (SACM) : Manages your IT assets and configurations, tracks computers, peripherals, network printers, and their associated components. With native dynamic inventory management from version 10 onwards, you can maintain an up to date configuration database, ensuring accurate and timely information about your assets. Request Fulfillment : Streamlines…
About Zammad
Welcome to Zammad Are you juggling countless customer inquiries across multiple channels? Struggling to keep your support team on the same page? Or spending more time managing your helpdesk than delivering exceptional support to your customers? Zammad is your Swiss Army knife a web based, open source helpdesk and customer support platform packed with features to streamline customer communication across channels like email, chat, telephone and social media. The Software The Zammad software is and will stay open source. It is licensed under the GNU AGPLv3. The source code is available on GitHub and owned by the…
read the full Zammad overview →
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Frequently asked questions
Is glpi or Zammad more popular?
glpi has 6,548 GitHub stars and Zammad has 6,067. glpi has the larger community by that measure.
Are glpi and Zammad free?
Both are open source. glpi is licensed under GPL-3.0 and Zammad under AGPL-3.0. Neither carries a licence fee.
What is the difference between glpi and Zammad?
glpi is written in PHP and Zammad in Ruby. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, glpi or Zammad?
Choose glpi if you want the larger community (6,548 stars) or its GPL-3.0 licence terms. Choose Zammad if its feature set, stack or AGPL-3.0 licence fits better. Both are self-hostable.