Overview

Tettra is a simple internal knowledge base with AI-powered answers and Slack integration. It handles ai answers, slack integration, verification, and templates, and it's best suited for teams wanting a simple internal knowledge base. It has been around since 2015, giving it a 11-year head start in building out integrations and refining the product.

The free plan is free for up to 5 users — enough for most people to evaluate whether it fits. It's designed for small teams, striking a balance between simplicity and collaboration features.

Strengths

  • Includes AI Answers as a core feature, purpose-built for documentation workflows
  • Includes Slack Integration as a core feature, purpose-built for documentation workflows
  • Free for up to 5 users — generous enough for most small teams to get real work done
  • Established product with 11+ years on the market and a mature ecosystem

Weaknesses

  • Free plan exists but key features are locked behind the paid upgrade
  • Fewer built-in features means you may need additional tools to cover gaps
  • Ecosystem of third-party integrations is smaller than the market leaders in documentation
  • Limited team/admin features if your organization eventually scales up

Quick info

Category
Documentation
Starting price
Free
Free tier
Yes — Free for up to 5 users
Open source
No
Best for
Small teams
Founded
2015

Last updated 2026-04-12

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