# Tana: workflows, use cases, and stacks

> AI-powered knowledge graph workspace for structured notes, meeting knowledge, and personal operating systems.

- Canonical: https://gptnavi.com/tools/tana
- Official website: https://tana.inc
- Category: Knowledge management
- Pricing model: Freemium
- Has free plan: Yes
- Last materially updated: 2026-08-19
- Best for: Operators, Consultants, Researchers
- Tags: knowledge-graph, notes, productivity

## Quick answer

Tana is a freemium knowledge management option best suited to Operators, Consultants, Researchers. In the GPTNavi catalog it connects to 1 workflows and 3 compatible stacks.

## Workflows using Tana

- [Turn research notes into a structured knowledge base](https://gptnavi.com/workflows/research-notes-to-knowledge-base) — Convert messy research notes, articles, interview snippets, and links into a reusable knowledge base with tags and next actions.

## Compatible stacks

- [AI Automation Builder Stack](https://gptnavi.com/stacks/ai-automation-builder-stack) — A builder stack for teams that want to connect forms, spreadsheets, documents, AI agents, and internal workflows without creating a full software product.
- [Research and Knowledge Stack](https://gptnavi.com/stacks/research-and-knowledge-stack) — A lightweight stack for collecting sources, highlighting useful evidence, summarizing patterns, and turning research into decisions.
- [Research Evidence Stack](https://gptnavi.com/stacks/research-evidence-stack) — A stack for turning papers, sources, highlights, and research notes into evidence-backed briefs and decisions.

## Nearby tools in the same category

- [Raindrop.io](https://gptnavi.com/tools/raindrop)
- [BackEngine](https://gptnavi.com/tools/backengine)