Cross-board, not just same-board
Search and link cards on every board you can read in the workspace. The dependency lives on both cards instantly.
Trello Power-Up · 7-day free trial
Card dependencies that work across every Trello board.
Link cards with blocks, blocked-by, parent, child, related, and duplicate relations — on the same board or across every board in your workspace. Blockers light up red on the board view so nothing silently waits on something else.
No credit card required. Cancel anytime from inside the Power-Up.
Card Dependencies
+ Add dependency- BlocksLanding page launchby Tucker
- Is related toStore PDF file to AWS↗ Platformby Sara
- Is blocked byAdd GA tag for billingby Mike
- Is parent toChild task: error statesby Tucker
- Is duplicate toOld ticket from Q2↗ Archiveby Sara
About
Built for teams whose work spans more than one board.
Most Trello dependency Power-Ups stop at the edge of a single board. That works for a tiny team, but most real organisations run a sprint board that depends on a platform board, a design pipeline that feeds engineering, and a marketing board waiting on legal. Cross-Board Card Dependencies treats your whole workspace as the unit of work — link any card to any other card, on any board you can read.
Six relation types — blocks, is blocked by, is related to, is duplicate to, is parent to, is child to — cover the dependencies real teams actually track. The card-back panel matches Trello's native look, the board view shows a compact red link-icon chip the moment a card is blocked, and dark-theme follows your Trello setting automatically.
- Relation types
- 6
- Cross-board
- ✓
- Auto-resolve on archive
- ✓
Features
Everything you need to track real dependencies — nothing you don't.
The Power-Up is intentionally focused. It does dependencies very well, plays nicely with the rest of Trello, and gets out of the way the rest of the time.
Six clear relation types
Blocks, is blocked by, is related to, is duplicate to, is parent to, is child to — colour-coded in the panel and in the picker.
Red badge on the board
Cards with an open blocker get a red chain-link chip on the board view. Outgoing-only dependencies get a softer blue chip with the count.
Auto-resolve when blockers archive
Trello webhooks watch every linked card. Archive a blocker and its dependents are unblocked automatically — no stale state to clean up.
Encrypted at rest, verified per request
OAuth1 tokens are AES-GCM encrypted in the database. Power-Up JWTs and webhook signatures are verified on every API call.
Auto-following dark theme
Switch Trello's theme to dark and every Power-Up surface — card-back, picker, modal — follows immediately. No manual toggle.
Resolve, don't lose
Tick a dependency to mark it resolved. It stays in the list with strikethrough so you keep the audit trail without the noise.
Per-workspace, one subscription
$9.90 / month or $99 / year covers every member on every board. No per-seat counting.
Pricing
One subscription per workspace. 7-day free trial, then pick monthly or yearly.
Every workspace starts with full access for seven days. After that you can subscribe monthly or yearly — the yearly plan is roughly 17 % cheaper. One subscription covers every member of the workspace, on every board where the Power-Up is enabled.
$9.90/ month
Cancel anytime, no commitment.
- All six relation types
- Cross-board search across the workspace
- Auto-resolve on archive (Trello webhooks)
- Unlimited cards, unlimited dependencies
- Email support
$99/ year
Two months free vs monthly. Best value.
- All six relation types
- Cross-board search across the workspace
- Auto-resolve on archive (Trello webhooks)
- Unlimited cards, unlimited dependencies
- Email support
7 days free during trial. The trial starts the moment you enable the Power-Up. Full functionality on every board, every relation type, no card-cap.
FAQ
Frequently asked questions.
What is Cross-Board Card Dependencies?
It is a Trello Power-Up that lets you link cards across multiple boards in the same workspace. You can mark cards as blocking, blocked by, parent, child, related, or duplicate of one another. The dependencies are reflected on both cards, and blocked cards are highlighted on the board so blockers are obvious at a glance.
Who is this Power-Up for?
Product, engineering, and operations teams who track work in Trello and need a single source of truth for dependencies that span more than one board. Useful for sprint boards that depend on platform boards, design pipelines that feed into engineering, and any cross-team work where one card cannot ship until another is done.
How does cross-board search work?
When you click Add dependency on a card, switch the picker to All boards, type a search term, and the Power-Up returns matching cards from every board you can already read in the workspace. It uses your authorized Trello access — the Power-Up never reads boards you cannot see yourself.
Is my Trello data safe?
Yes. The OAuth1 token you grant is encrypted at rest with AES-GCM. Power-Up requests are authenticated with Trello-issued JWTs that we verify on every API call. Webhook payloads from Trello and PayPal are signature-verified. We only ever read card titles and URLs to render dependency lists — never card descriptions, comments, attachments, or your password.
How much does it cost?
Every workspace gets a 7-day free trial with full access. After the trial, the Power-Up is $9.90 per workspace per month, or $99 per workspace per year (~17% off). One subscription covers every member of the workspace, on every board where the Power-Up is enabled. You can cancel at any time from the billing tab inside the Power-Up.
Which Trello plans does it work on?
Every Trello plan: Free, Standard, Premium, and Enterprise. Power-Ups are now available on all tiers including Free since Atlassian removed the per-board Power-Up cap. Workspace admins can install it; board admins enable it on each board.
Why does the Power-Up have to be enabled on each board?
Trello requires every Power-Up to be enabled per board — it is a platform rule, not a limitation of this app. Enabling on one board does not auto-enable it on the others, but the dependencies you create still work cross-board: you only need the Power-Up on the boards where you want the in-card UI to appear. Trello Enterprise admins can push a Power-Up to all org boards in one click; standard plans enable it manually per board.
Does it stay in sync if I close Trello?
Yes. The Power-Up registers Trello webhooks for cards involved in any dependency. When a blocking card is archived or deleted, dependents are auto-resolved server-side, so the next time you open the card-back the badges and panel are already correct. Nothing has to be open in your browser for the sync to happen.
Still have a question?
Email [email protected]. Include your workspace name and a short description of what you need.