# Supported data formats

In addition to the **400+ sources** that Coupler.io has implemented our users also can integrate with custom applications that are not supported by Coupler.io yet but have public APIs or export URLs that return data in supported formats.

<i class="fa-square-check" style="color:green;">:square-check:</i> Coupler.io supports data sources that return data in one of the following formats:

* CSV (Comma-Separated Values)
* JSON (JavaScript Object Notation)

<i class="fa-square-xmark" style="color:red;">:square-xmark:</i> Coupler.io does not support sources that return data in the next formats:

* XML (Extensible Markup Language)
* HTML (HyperText Markup Language)
* TXT (plain text)
* TSV (Tab-Separated Values)


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