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---title: What is Markdoc?---# {% $markdoc.frontmatter.title %} {% #overview %}Markdoc is a Markdown-based syntax and toolchain for creating custom documentation sites. Stripe created Markdoc to power [our public docs](http://stripe.com/docs).{% callout type="check" %}Markdoc is open-source—check out its [source](http://github.com/markdoc/markdoc) to see how it works.{% /callout %}## How is Markdoc different?Markdoc uses a fully declarative approach to composition and flow control, where other solutions… [Read more](/docs/overview).## Next steps- [Install Markdoc](/docs/getting-started)- [Explore the syntax](/docs/syntax)Try it out
What is Markdoc?
Markdoc is a Markdown-based syntax and toolchain for creating custom documentation sites. Stripe created Markdoc to power our public docs.
Markdoc is open-source—check out its source to see how it works.
How is Markdoc different?
Markdoc uses a fully declarative approach to composition and flow control, where other solutions… Read more.
Next steps
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---title: Sandbox---{% sandbox height="calc(100vh - var(--nav-height))" /%}