
Open Source ITSM: 13 Free Service-Desk Tools for 2026
A 2026 guide to the 13 open source ITSM tools worth shortlisting - GLPI, iTop, Zammad, OTOBO, KIX, RT, osTicket and more - with G2/Capterra/Trustpilot ratings, license terms, and self-hosting trade-offs.


