Messages

Messages is a drawer for direct and group conversations with anyone you share a board with. Threads support attachments you can drag straight onto a canvas, @ mentions that link to real boards and cards, per-thread drafts, and unread counts that show in the browser tab title.

Updated August 8, 2026

Messaging exists so that the conversation about a board can happen next to the board.

Open it from the sidebar or ⌘K → "messages".

Who you can message

Anyone you share at least one board with. Sharing is the address book — there is no separate contact list to maintain, and no way to message someone you have no working relationship with.

Click any collaborator's avatar to start a direct message with them.

Threads

Direct and group conversations in one list, ordered by recency.

• Attachments — send files, and drag one from a thread straight onto a canvas to make it a card
• Markdown and auto-links — formatting is rendered, URLs unfurl
• Mentions — @ a person, board, document or card; boards and cards become navigable links
• Per-thread drafts — a half-written message survives closing the drawer
• Permalinks — a link to one specific message, which opens the thread scrolled to it

Unread

Unread counts appear on the sidebar and in the browser tab title — (3) for unread, (@2) when at least one mentions you directly, so you notice from another tab.

Messages versus comments

The distinction worth keeping:

• A comment is attached to a thing on a board and stays with it. It is a record.
• A message is a conversation with a person. It is correspondence.

Feedback on a specific image belongs in a comment, where whoever opens that board next will find it. Coordination belongs in a message.

Machine-readable: /docs/collaborate/messages.md · /llms.txt