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

# Data Format

> Learn how Stellar represents and exchanges data.

Learn how Stellar represents and exchanges data.

> [card] [XDR](https://developers.stellar.org/docs/learn/fundamentals/data-format/xdr.md)
>
> Understand Stellar's XDR binary format, why it exists, and how to inspect or parse it safely.

> [card] [XDR-JSON](https://developers.stellar.org/docs/learn/fundamentals/data-format/xdr-json.md)
>
> Use the XDR-JSON schema to round-trip Stellar XDR payloads through JSON tools without losing fidelity.