Comment on a card

Comments allow you to engage in a conversation on the back of a card. To view the back of a card, click on the card to open it.

Add a comment

You can add comments to a card by selecting Write a comment in the Activity section of the card back.

When you comment on a card that you're not already a member of, you can select Watch to receive notifications when someone adds another comment or edits the card.

Add an attachment

Add an attachment to the activity feed while making comments on a card by clicking the paperclip icon and selecting the file that you would like to attach to your card.You can also use this to attach a card or board from Trello.

Notify someone with @ mentions

You can mention people in comments by using "@" followed by the user's username or by clicking the @ icon below the comment input field then selecting the members you would like to mention. The mentioned user(s) will get a notification about the comment.

Note: you can mention user’s that are members of your Workspace on any of your boards, as well. If the tagged user is not a member of the board, they will be notified if the visibility of that board is set to “Workspace visible”, but they won’t receive notifications if the visibility is set to “Private”.

You can also mention the card members in a comment by using '@card', and all of the board members by using '@board'. 

React to a comment with an emoji

You can react to comments with emojis right within Trello. It's a great way to give quick feedback or interact with a comment in a simple way.

To add an emoji reaction:

1. Open a card

2. Find the comment you want to react to

3. Select Add reaction ()

4. Select an emoji

The number will automatically update if any other users react with the same or different emoji. You will be able to react with an emoji on any card that you have permissions to comment on.

Remove an emoji reaction

Clicking on an existing reaction that you have added removes a count from that reaction. If it was the only reaction, the emoji will be removed.

Edit or delete a comment

Edit or delete comments by clicking the "edit" or "delete" links beneath the comment. You can edit or delete any comment you make on any board. Although it's not possible to edit comments made by another user, board admins can delete comments made by any non-admins on their boards. Deleting a comment is permanent. 

Share a link to a comment

To get a link to a specific comment, right-click the timestamp link under the comment and select your browsers "Copy Link" option. 

See current activity from other members

If another user is typing a comment at the same time as you, you'll see their avatar above the comment box, with a speech bubble.

See Also

• Adding cards

• Editing cards

• Disabling comments on cards