# AWS Step Functions Documentation

AWS Step Functions makes it easy to coordinate the components of distributed applications as a series of steps in a visual workflow. You can quickly build and run state machines to execute the steps of your application in a reliable and scalable fashion.

- [Developer Guide](/step-functions/latest/dg/welcome.html): Describes key concepts of AWS Step Functions and provides instructions for using the features of AWS Step Functions.
- [API Reference](/step-functions/latest/apireference/Welcome.html): Documents the AWS Step Functions API.
- [Amazon States Language Specification](https://states-language.net/spec.html): Describes the language that is used to define state machines for AWS Step Functions.
- [Statelint](https://github.com/awslabs/statelint): A tool to validate your Amazon States Language code.

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## Related Links

- [AWS Glossary](http://docs.aws.amazon.com/general/latest/gr/glos-chap.html)
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- [AWS General Reference](http://docs.aws.amazon.com/general/latest/gr/Welcome.html)
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