# Document Stores

Document stores contain ingested document chunks, i.e. [Node](../../documents_and_nodes/index.md)s.

## Available Document Stores

- [SimpleDocumentStore](../../../api/classes/SimpleDocumentStore.md): A simple in-memory document store with support for [persisting](../index.md#local-storage) data to disk.
- [PostgresDocumentStore](../../../api/classes/PostgresDocumentStore.md): A PostgreSQL document store, see [PostgreSQL Storage](../index.md#postgresql-storage).

Check the [LlamaIndexTS Github](https://github.com/run-llama/LlamaIndexTS) for the most up to date overview of integrations.

## API Reference

- [BaseDocumentStore](../../../api/classes/BaseDocumentStore.md)
