> For the complete documentation index, see [llms.txt](https://docs-v3.activeloop.ai/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs-v3.activeloop.ai/readme.md).

# Deep Lake Docs

## Activeloop Deep Lake

### Use Cases for Deep Lake

> #### Please note this is the documentation for Deep Lake version 3.9.16 and  earlier.  For Deep Lake 4.0.0 and above, please use [the following link](https://docs.deeplake.ai/). We will be working on transitioning the documentation very soon - stay tuned!

#### Deep Lake as a Data Lake For Deep Learning

* Store and organize unstructured data (images, audios, nifti, videos, text, metadata, and more) in a versioned data format optimized for Deep Learning performance.
* Rapidly query and visualize your data in order to create optimal training sets.
* Stream training data from your cloud to multiple GPUs, without any copying or bottlenecks.

#### Deep Lake as a Vector Store for RAG Applications

* Store and search embeddings and their metadata including text, jsons, images, audio, video, and more. Save the data locally, in your cloud, or on Deep Lake storage.
* Build Retrieval Augmented Generation (RAG) Apps using our integrations with [LangChain](/examples/rag/langchain-integration.md) and [LlamaIndex](/examples/rag/llamaindex-integration.md)
* Run computations locally or on our [Managed Tensor Database](/examples/rag/managed-database.md)

<figure><img src="/files/MgLM3z5vazfjMiO7p33V" alt=""><figcaption><p>Deep Lake Architecture for Inference and Model Development Applications.</p></figcaption></figure>

### To start using Deep Lake ASAP, check out our [Deep Learning Quickstart](/examples/dl/quickstart.md), [RAG Quickstart](/examples/rag/quickstart.md), and [Deep Learning Playbooks](/examples/dl/playbooks.md).

Please check out Deep Lake's [GitHub repository](https://github.com/activeloopai/Hub) and give us a ⭐ if you like the project. &#x20;

Join our [Slack Community ](https://slack.activeloop.ai)if you need help or have suggestions for improving documentation!

### Deep Lake Docs Overview

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[User Authentication](/setup/authentication.md)
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[Deep Learning Quickstart](/examples/dl/quickstart.md)
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[RAG Quickstart](/examples/rag/quickstart.md)
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[Deep Learning Playbooks](/examples/dl/playbooks.md)
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[Deep Learning Tutorials](/examples/dl/tutorials.md)
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[Best Practices](/technical-details/best-practices.md)
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[API Summary](/examples/dl/api.md)
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