FreeITSM vs Tessio

FreeITSM is an open-source IT service management platform with 23 integrated modules for running a service desk. Its Tickets module connects Microsoft 365 and Google Workspace mailboxes for email ticketing, assignment, prioritisation, replies, attachments and audit trails. Assets tracks physical and virtual equipment and can discover VMware virtual machines through vCenter. Listed service-management tools include risk assessment, approval workflows, change calendars and change audit trails. Optional AI features provide knowledge answers, ticket-reply cleanup, form assistance, workflow authoring and problem detection. They use a customer-provided Anthropic, OpenAI or OpenRouter key, and provider usage may cost extra. FreeITSM runs with Docker on Linux or Windows, or through IIS with PHP or WAMP and MySQL 8.0+ or MariaDB 10.5+. Security options include OpenID Connect SSO, AES-256-GCM key management, TOTP multi-factor authentication, account lockout, brute-force protection and trusted devices. The project has no formal support.

Tessio is an IT service desk platform with an integrated AI teammate called Tess. Tess can triage tickets, route them to teams, draft replies, summarize conversations, find similar tickets and search the queue in natural language. The service desk includes ticket queues, intake forms, workflows, SLAs, email-to-ticket, asset and device inventory, dashboards, custom reports and a brandable requester portal. Its knowledge base supports article revisions, and Tess can answer from articles with cited sources. Tess connects to OpenAI and compatible endpoints such as Azure OpenAI, Ollama, LM Studio, vLLM and local gateways. Self-hosting is available through Docker Compose, a single container or Kubernetes; a hosted Cloud edition is also listed. Community is AGPL-licensed and costs nothing, with five admin/agent seats and unlimited requesters.