# Schema Field Type Reference
Below you can find each of the schema field types available in Apostrophe with links to a complete description of its function, properties, and reference code to help you use them in your project. For more general information on using schemas in Apostrophe, see the Schema Guide. For more information on the usage of specific properties, see the Schema Field Properties reference.
| Field | Description |
|---|---|
| area | an editable content area |
| array | A field which can store one or more objects as an array. Has its own schema |
| attachment | provides access to upload a file to the server |
| boolean | provides a "True" or "False" input |
| checkboxes | provides an array of checkboxes |
| color | provides a color picker |
| date | provides a date picker |
| accepts a valid email address | |
| float | accepts input of a decimal number with stepped parameters |
| integer | accepts input of an integer |
| joinByArray | expresses a one-to-many relationship between this document and one or more pieces or pages |
| joinByArrayReverse | allows the user to see the "other side" of a joinByArray relationship |
| joinByOne | expresses a one-to-one relationship between this document and another type of document |
| joinByOneReverse | allows the user to see the "other side" of a joinByOne relationship |
| object | A field which can store a single object with its own schema |
| password | hidden text entry |
| range | "provides an input for selecting a range of numbers" |
| select | provides a single-select dropdown menu |
| singleton | displays a single widget |
| slug | A string which, when saved, is simplified to lowercase, hyphens, etc. suitable for use as part of a URL. All docs in Apostrophe have at least a field of this type named slug, but you may have more. |
| string | accepts text entry |
| tags | accepts text entry to define "tags" as a label for content |
| time | provides entry for a time, which is stored in HH:MM:SS format |
| url | provides an editable URL field |
| video | allows the user to embed a video by pasting a link |
TIP
You can also add more field types to the system; check out the source code of the apostrophe-attachments (opens new window) module for a good example.