> ## Documentation Index
> Fetch the complete documentation index at: https://docs.custral.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Checkbox

> A simple on/off (true or false) field.

## Overview

Checkbox stores a plain on/off value on a record. Use it for yes/no flags (VIP, verified, archived, follow-up needed) anywhere a boolean is clearer than a single-option select.

## What it stores

On or off (an unset field reads as off).

## Filtering

Is checked, is not checked.

## Examples

VIP contact; Contract signed; Needs review. It also powers the [Checklist block](/blocks/embedded/databases/checklist), where checking a record's Checkbox field completes it.

## Troubleshooting

| Symptom                                      | Cause / fix                                                                                     |
| -------------------------------------------- | ----------------------------------------------------------------------------------------------- |
| "Checkbox" isn't in the property type picker | The property schema re-seeds on API boot; a self-hosted API needs a restart to pick it up.      |
| A filter on the field returns nothing        | The field is unset on those records (reads as off). Filter by "is not checked" to include them. |

## See also

* [Status](/data/properties/select/status): when "done" is one of several ordered stages.
* [Checklist block](/blocks/embedded/databases/checklist): completes a record by writing this field.


## Related topics

- [Checklist](/blocks/embedded/databases/checklist.md)
- [Change Log](/product/updates.md)
- [Lists](/data/collections/overview.md)
- [Static lists](/data/collections/list.md)
- [Deliverability](/comms/deliverability/overview.md)