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Visual task DAG

See your canvas: chains, groups, chords.

Tidy-tree SVG layout of Celery canvas structures. Parent nodes are horizontally centered over their children; runtime badges surface per-node timing; failure states ring in red. No heavy graph library, hand-rolled SVG.

Preview
z4j overview view with sample project data
Dashboard overview · sample data. Explore the live demo →

Mockup of the dashboard view for this feature. Live-reloading and themed to match your dashboard.

Ships with

  • Subtree-width-aware placement
  • Runtime badges (ms / s / m / h)
  • Click-through navigation to any node
  • Orphan + cycle detection (reparents safely)

Related

More capabilities

Automation rule engine

Match a trigger. Run a governed action. Every firing on the audit chain.

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Issues: failure fingerprinting

The same bug across every run collapses into one issue.

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Durable bulk retry

Retry a thousand failures once, and only once.

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Ready to try z4j?

Install z4j How z4j works