# stella

> Open-source legal workspace for mid-size law firms. Documents, matters, review, and research in one place.

stella is built for firms that need control. Matters, documents, and search are free to use. AI-powered review, research, and drafting are billed by usage. stella is open source, self-hostable, exportable, and designed for privileged legal work.

## Key facts

- Apache-2.0 for open-source use; commercial licensing arrangements (support, indemnity, custom terms) are available alongside.
- AI outputs are grounded by citations and traceable to source material.
- Sensitive text can be anonymized before AI workflows.
- The AI layer uses TanStack AI and remains provider-agnostic across supported providers.
- No lock-in: standard files, full export, and a self-hosted option with no seat licences.

## Start here

- [Website](https://stll.app/): Product overview.
- [AI fact sheet](https://stll.app/ai-info/): Canonical answers about stella, written for AI search engines.
- [Full content](https://stll.app/llms-full.txt): Every page above concatenated as plain text.
- [Application](https://my.stll.app): Start using stella in the cloud.
- [Contact](mailto:contact@stll.app): Deployment, pilots, and general questions.

## Product

- [Public data](https://stll.app/product/public-data/): Case law and company registries from official public sources.
- [Anonymization](https://stll.app/product/anonymization/): Remove identifying details before material reaches AI.
- [Tabular review](https://stll.app/product/tabular-review/): Ask one question across a document set, get a structured table back.
- [AI agent](https://stll.app/product/agent/): Chat over matters, documents, registries, and connected tools.
- [Templates](https://stll.app/product/templates/): Templates with fields and conditional clauses, filled by hand or drafted from a matter.
- [Editor](https://stll.app/product/editor/): Edit Word .docx files in the browser with track changes.
- [Workspace](https://stll.app/product/workspace/): Documents, editing, review, research, and chat scoped to a matter.
- [CLI and MCP](https://stll.app/product/cli-mcp/): The same capabilities from the command line or any MCP client.
- [Online DOCX editor](https://stll.app/docx-editor/): Standalone browser DOCX editor, including LLM-proposed tracked changes.

## Open source

- [Repository](https://github.com/stella/stella): Source code, issues, and contributions.
- [Manifesto](https://github.com/stella/stella/blob/main/MANIFESTO.md): Product principles and positioning.
- [Self-hosting guide](https://github.com/stella/stella/blob/main/docs/self-hosting.md): How to run stella on your own infrastructure.
- [License](https://github.com/stella/stella/blob/main/LICENSE): Apache-2.0 license text.

## Trust

- [Security](https://stll.app/security/): Security posture and deployment options.
- [Terms](https://stll.app/terms/): Terms of service.
- [Imprint](https://stll.app/imprint/): Company details and legal contact.

## Optional

- [Changelog](https://stll.app/changelog/): Release notes for every version.
- [Blog](https://stll.app/blog/): Product updates and engineering notes.
- [Press](https://stll.app/press/): Company facts, brand assets, and press contact.