# *cattrs*: Flexible Object Serialization and Validation

*Because validation belongs to the edges.*

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However, *cattrs* does **much** more with a focus on **functional composition** and **not coupling** your data model to its serialization and validation rules.

To learn more on why to use *cattrs*, have a look at {doc}`why`, and if you're convinced jump right into {doc}`basics`!


```{toctree}
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caption: Introduction
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why
basics
defaulthooks
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```{toctree}
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customizing
strategies
recipes
validation
preconf
unions
usage
migrations
indepth
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```{toctree}
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API <modules>
modindex
genindex
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```{toctree}
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contributing
benchmarking
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```{toctree}
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history
PyPI <https://pypi.org/project/cattrs/>
GitHub <https://github.com/python-attrs/cattrs>
```