compare
osTicket vs Zammad
The same facts for both, read from GitHub every night, and the relation a person reviewed.
| Fact | osTicket | Zammad |
|---|---|---|
| Language | PHP | Ruby |
| Licence | GPL-2.0 | AGPL-3.0 |
| Stars | 4k | 6k |
| Latest | v1.18.4 | 7.2.1 |
| Last push | 2026-06-17 | 2026-10-06 |
| Release cadence | about 77 days between releases | too few releases |
| Active contributors | 0 commit authors on the default branch in the last 90 days | 19+ commit authors on the default branch in the last 90 days |
| Flags | none | none |
How they relate
Both replace Freshdesk. Alternatives to Freshdesk →
PartialosTicketEmail and web form tickets with SLAs and a knowledge base, without live chat or phone.
Full replacementZammadTicketing across channels, with a Freshdesk importer.
Both replace Zendesk. Alternatives to Zendesk →
PartialosTicketEmail and web form tickets with SLAs and a knowledge base, without live chat or phone.
Full replacementZammadTickets from email, chat, phone and social channels, with a knowledge base and a Zendesk importer.
osTicket
unsigned The latest release, v1.18.4, carries no signature GitHub could verify.
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Zammad
✓ signed The latest release, 7.2.1, carries a signature GitHub verified.
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