Tessio

6.9easy start · #18 of 61
in IT Knowledge Base Software

Free to practise onyes
Free trialnot on record
Well documentedyes
Runs where you worknot on record

Runs on self-hosted, Web.

Tessio is ranked #18 of 61 in IT knowledge base software on The Geeks Club. It runs on Self-hosted, Web. There is a free plan.

Tessio plans and pricing

All plans

Community Free 5 admin/agent seats · unlimited requesters · full core ITSM · self-hosted github.com · 7 Oct 2026

Enterprise Not published per user/month; price not stated self-hosted · additional seats · SSO/OIDC · audit log viewer github.com · 7 Oct 2026

Cloud Not published per user/month; price not stated hosted · unlimited requesters · SSO/OIDC · audit log viewer · metered AI credits github.com · 7 Oct 2026

Compared on IT knowledge base software

Free plan: Yes
Internal employee portal: Yes
AI-powered search: Yes
Single sign-on: Yes

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The record

Product: Tessio is a self-hosted IT service management platform with ticketing, inventory, a knowledge base, forms, dashboards, and workflow automation.
AI assistant: Tess can triage tickets, draft replies, summarize tickets, find similar tickets, and answer natural-language questions about the queue.
Workflow automation: The visual workflow builder supports branches, ticket updates, comments, HTTP calls, and sandboxed scripts.
Knowledge base: The knowledge base supports self-service articles and an Ask Tess answer box over the knowledge base.
Email: Tessio supports SMTP outbound notifications and IMAP inbound email-to-ticket, with credentials stored encrypted.
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.
Identity: Tessio supports OpenID Connect providers including Google, Okta, Entra/Azure AD, Keycloak, and Auth0.
Privacy controls: AI is disabled by default, and Tessio says no external model calls occur while it remains disabled.
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.
Notable AI limitation: The maker describes PII detection as best-effort pattern matching and says it does not guarantee detection of every obfuscated variant.
Deployment: The maker documents Docker Compose, single-container, and Kubernetes Helm deployment options.
Requirements: The documented deployment requires PostgreSQL with pgvector and Redis; Docker or Kubernetes and Helm are also required depending on install path.
Intended audience: The maker describes Tessio as a service desk for teams seeking an open alternative to ServiceNow, Zendesk, or Freshservice.
License: The Community core is self-hosted and AGPL-3.0 licensed; enterprise features are commercial.
Price from: Free

Where it ranks on The Geeks Club

Best IT Knowledge Base Software in 2026#18 of 61

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Sources

tessio-ai.github.io/tessio/· checked 7 Oct 2026
tessio-ai.github.io/tessio/ai-privacy/· checked 7 Oct 2026
tessio-ai.github.io/tessio/operations/email/· checked 7 Oct 2026
github.com/tessio-ai/tessio· checked 7 Oct 2026
tessio-ai.github.io/tessio/configuration/· checked 7 Oct 2026