> ## Documentation Index
> Fetch the complete documentation index at: https://docs.chonkie.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Refinery Overview

> Overview of the different refinery available in Chonkie

Refinery is a module in Chonkie that allows you to refine chunks.
Refineries help you to add additional `context` to your chunks which are useful to improve the quality of your embeddings and keyword indexing.

<CardGroup cols={2}>
  <Card title="OverlapRefinery" icon="pen-nib" href="/oss/refinery/overlap-refinery">
    Refines chunks by adding overlapping chunks to the original chunk.
  </Card>

  <Card title="EmbeddingsRefinery" icon="pen-nib" href="/oss/refinery/embeddings-refinery">
    Refines chunks by adding embeddings to the original chunk.
  </Card>
</CardGroup>