Tessio
Tessio is a self-hosted IT service management platform with ticketing, inventory, forms, dashboards, a knowledge base, and workflow automation.
What Tessio is
Tessio is a self-hosted IT service management platform with ticketing, inventory, forms, dashboards, a knowledge base, and workflow automation. Its assistant, Tess, can triage and summarize tickets, draft replies, find similar tickets, and answer natural-language questions about the queue. A visual workflow builder supports branches, ticket updates, comments, HTTP calls, and sandboxed scripts. The knowledge base supports self-service articles and an Ask Tess answer box. Tessio handles outbound SMTP notifications and inbound IMAP email-to-ticket, storing credentials encrypted. AI is disabled by default, and Tessio says no external model calls happen while it is off. When enabled, it says it redacts common email addresses, US Social Security numbers, phone numbers, and credit-card numbers before relevant text goes to OpenAI; the maker warns that this best-effort pattern matching may miss obfuscated variants. The Community core is free, self-hosted, and AGPL-3.0 licensed, with five admin or agent seats and unlimited requesters. Deployment options include Docker Compose, a single container, and Kubernetes Helm; documented requirements include PostgreSQL with pgvector and Redis.
Good
- Free Community core includes five admin or agent seats
- Unlimited requesters on the Community plan
- AI is off by default
- Supports multiple deployment options
- Supports OpenID Connect identity providers
Watch out
- Documented deployments require PostgreSQL with pgvector and Redis
- PII detection may miss obfuscated variants
Who it suits
Tessio suits service desk teams seeking a self-hosted alternative to established ITSM platforms. It is also relevant to teams wanting ticket automation and an AI assistant with AI disabled by default.
Verdict
Tessio combines core service desk tools with configurable workflows and an optional AI assistant. Its self-hosted Community core is free, but deployment requirements and the limits of PII detection merit attention.
Plans and prices
From Tessio's own pricing page, checked 7 Oct 2026.
| Plan | Price | What it gives you |
|---|---|---|
| Community | Free | 5 admin/agent seats · unlimited requesters · full core ITSM · self-hosted |
| Cloud | — | hosted · unlimited requesters · SSO/OIDC · audit log viewer · metered AI credits · per user/month; price not stated |
| Enterprise | — | self-hosted · additional seats · SSO/OIDC · audit log viewer · per user/month; price not stated |
The facts
Each one read from Tessio's own pages, with the date it was checked.
What it does
- AI assistant
- Tess can triage tickets, draft replies, summarize tickets, find similar tickets, and answer natural-language questions about the queue.checked 7 Oct 2026
- AI integrations
- The documentation names OpenAI as the AI provider; the repository description also lists OpenAI-compatible endpoints including Azure OpenAI, Ollama, LM Studio, and vLLM.checked 7 Oct 2026
- Deployment
- The maker documents Docker Compose, single-container, and Kubernetes Helm deployment options.checked 7 Oct 2026
- Tessio supports SMTP outbound notifications and IMAP inbound email-to-ticket, with credentials stored encrypted.checked 7 Oct 2026
- Identity
- Tessio supports OpenID Connect providers including Google, Okta, Entra/Azure AD, Keycloak, and Auth0.checked 7 Oct 2026
- Intended audience
- The maker describes Tessio as a service desk for teams seeking an open alternative to ServiceNow, Zendesk, or Freshservice.checked 7 Oct 2026
- Knowledge base
- The knowledge base supports self-service articles and an Ask Tess answer box over the knowledge base.checked 7 Oct 2026
- License
- The Community core is self-hosted and AGPL-3.0 licensed; enterprise features are commercial.checked 7 Oct 2026
- Notable AI limitation
- The maker describes PII detection as best-effort pattern matching and says it does not guarantee detection of every obfuscated variant.checked 7 Oct 2026
- PII handling
- Before enabled AI features send relevant text to OpenAI, Tessio says it redacts common email addresses, US Social Security numbers, phone numbers, and credit-card numbers.checked 7 Oct 2026
- Privacy controls
- AI is disabled by default, and Tessio says no external model calls occur while it remains disabled.checked 7 Oct 2026
- Product
- Tessio is a self-hosted IT service management platform with ticketing, inventory, a knowledge base, forms, dashboards, and workflow automation.checked 7 Oct 2026
- Requirements
- The documented deployment requires PostgreSQL with pgvector and Redis; Docker or Kubernetes and Helm are also required depending on install path.checked 7 Oct 2026
- Workflow automation
- The visual workflow builder supports branches, ticket updates, comments, HTTP calls, and sandboxed scripts.checked 7 Oct 2026
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