Add a Custom Field to a card
You can add new fields to your Trello cards with Custom Fields. A Custom Field is displayed on every card in a board, but values in that field can vary from card to card.
Create a Custom Field
To create a Custom Field:
Open the board menu (…) and choose Custom Fields
Select New field
Give the Custom Field a title, up to 25 characters long
Choose the type of custom field you want to create
Decide if you want the Custom Field to be displayed on the front of the card or only on the back
Select Create to save the Custom Field to the board
Custom Field types
Checkbox: This option adds a checkbox to the card
Date: Shows selected date and time from the date picker
Dropdown: Define a list of options, then select from that list on the back of the card
Number: The input must be a number
Text: The input can be any text
A custom field’s type can’t be edited later.
Show a Custom Field on the front of a card
By default, the value of a Custom Field will be shown on both the front and back of a card.
To hide the custom field on the card front, uncheck the Show field on front of card option when creating the custom field, or by editing it later.
Move and copy cards with Custom Fields
When you move or copy a card to another board, any Custom Fields that contain data will be copied to the other board. Empty Custom Fields won’t be copied.
If the target board has a Custom Field with the same name and field type, the data will be copied into the existing field on that board. If there is no matching Custom Field on the target board, a new Custom Field will be created there.
Keep Custom Field items
On mobile, the Keep Custom Field Items setting lets you choose whether to copy the Custom Fields and their values, or just the Custom Fields.
If the setting is on, values will be copied along with Custom Fields. If the setting is off, the card will be copied with empty Custom Fields.
This option only appears if at least one Custom Field contains data.
Checkbox Custom Fields that have never been checked can’t be copied. To successfully copy a checkbox Custom Field, make sure it has been checked at least once.
Edit or delete a Custom Field
To edit or delete a Custom Field:
Open the board menu (…) and select Custom Fields
Choose the Custom Field you want to edit
Edit the field, add options, change settings, or delete the field
Note: A custom field’s type can’t be edited later.
Reorder Custom Fields
To change the order of Custom Fields on the back of cards:
Open the board menu and select Custom Fields
Choose a Custom Field you want to move
Drag and drop the Custom Field to a new location in the list
The changes will be reflected immediately on all cards on the board.
Custom Field data in board exports
Custom Field data is included in the both JSON and CSV exports. Discover how to export your boards to either JSON or CSV
Filter a board by Custom Field data
To filter a board using the values from Custom Fields:
Open a board and select the Filter menu
In the Keyword field, begin typing a value that appears in one of your Custom Fields
The filter will show cards that contain that value in their Custom Fields.
Note: You can only filter by Custom Field values, not by the names of the Custom Fields.
Custom Field limits
A board can have a maximum of 50 Custom Fields. Each dropdown Custom Field can have up to 50 options.
Custom Fields Power-Up
Custom Fields are available in Workspaces on the Standard plan and up. The Custom Fields Power-Up is no longer available.
What happens to Custom Fields on the Free plan
Custom Fields aren’t available in Free Workspaces, but their values are not deleted if a Workspace is downgraded to the Free plan.
They will become temporarily unavailable but will come back as soon as the Workspace is upgraded to a paid plan.
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