> For the complete documentation index, see [llms.txt](https://docs.overse.app/hubble/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.overse.app/hubble/variables.md).

# Variables

- [Intro to variables](https://docs.overse.app/hubble/variables/intro-to-variables.md): Variables are dynamic data placeholders that you can use inside Hubble to personalize content for individual customers. By using variables, you can make your blocks feel more personal and relevant.
- [Supported variable filters](https://docs.overse.app/hubble/variables/supported-variable-filters.md): Filters allow you to modify the output of a variable. You can use them to format dates, change text case, or provide default values when data is missing.
- [Supported metafield types](https://docs.overse.app/hubble/variables/supported-metafield-types.md)