Collaborating
Invite people to a cluster as an editor or a viewer, by email or with a link. Collaboration is free on every plan — an editor does not need a paid account, and there is no seat count. Cards and storage always count against the cluster owner's quota, not the person who added them.
Collaboration is deliberately not a paid feature. Inviting people is how boards become useful, and charging per seat would make the product worse at the thing it is for.
Roles
| Role | Can |
|---|---|
| Owner | Everything, including deleting the cluster and managing shares |
| Editor | Add, change and remove content; comment; invite if permitted |
| Viewer | Open, read, and vote — nothing else |
| Workspace member | Access granted at the workspace level rather than per board |
Editors are free on every plan. A free-tier account can be an editor on any cluster it is invited to, with no restriction on what it can do there.
Whose quota
Always the cluster owner's.
Cards added to someone else's cluster count against their card allowance; files uploaded there use their storage. This is what makes free editors workable: the person who owns the work pays for it, and inviting help costs nothing extra.
Inviting
Share on any cluster opens the dialog. Two mechanisms:
- By email — name a person and a role. They get an invitation.
- By link — a URL carrying a role, which grants that access to whoever opens it and confirms.
Also in the dialog: current workspace members, existing per-board shares, and public links — which are a different thing, and always view-only.
Workspaces
Access can be granted at the workspace level instead of per board, which is the right shape for a team that works together continuously rather than on one project.
Clusters shared with you appear under Shared with me in the sidebar, grouped by whose workspace they came from.
What collaboration looks like in use
- Presence — live cursors, who is here, jump to where someone is
- Comments — anchored to a card, a group, a point, or a text range
- Messages — direct and group conversations with anyone you share a board with
- Notifications — mentions, replies, invitations
Everything is real time. Two people can move cards on the same canvas, type in the same note, or write in the same document at once, and edits merge rather than overwriting.
Undoing someone else's change
⌘Z undoes your own edits only. To reverse a collaborator's work, use version history or workspace recovery — see Trash and recovery.
Frequently asked questions
Do collaborators need to pay?
No. Editors and viewers are free on every plan, and there is no seat limit. Whoever owns the cluster pays for what it holds.
Whose card allowance do collaborator uploads use?
The owner's. If you add cards to someone else's cluster, they count against their limit, not yours.
Can a viewer comment?
Viewers can read and vote. Commenting and editing require editor access.
Machine-readable: /docs/collaborate.md · /llms.txt