> For the complete documentation index, see [llms.txt](https://docs.bridgefy.me/sdk/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.bridgefy.me/sdk/android/overview.md).

# Overview

Bridgefy creates mesh networks in which devices connect directly to each other in a decentralized manner. This allows users to communicate with nearby devices within a certain range, forming a network without the need for a centralized server or Internet access.

<figure><img src="https://2522171645-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F5XKIMMP6VF2l9XuPV80l%2Fuploads%2F7zdTUCKD5tXggKDdOfEa%2F68747470733a2f2f696d616765732e7361796d656469612d636f6e74656e742e636f6d2f2e696d6167652f745f73686172652f4d546b7a4f54557a4f4455304d446b794e6a45334d6a49782f7061727469636c65736a732d6578616d706c65732e676966.gif?alt=media&amp;token=4eeb011a-0864-4d38-a09e-3744b2f33c12" alt=""><figcaption></figcaption></figure>

The Bridgefy SDK provides a set of tools and APIs that developers can use to incorporate offline messaging, data transfer, and real-time communication features into their applications. It allows users to send data directly to other nearby devices using Bluetooth Low Energy.