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RACI Matrix Builder

Map who is Responsible, Accountable, Consulted and Informed for each task — then let the builder catch the gaps that break a RACI chart.

100% client-side. Your matrix is held in memory only and never sent to any server. Refreshing the page clears it — export to Markdown/CSV/JSON (or save JSON and re-import later) if you need to keep it.

Scheme

RACI RASCI (adds Support)

Add task

Add role

Matrix

Set each cell with the dropdown. On a narrow screen the grid scrolls sideways; a stacked per-task view is shown below it on phones.

Add at least one task and one role, or load the sample matrix, to get started.

Validation

Export & import

Import JSON

Markdown preview

What R / A / C / I mean

R – Responsible: does the work. A task can have several Responsible roles.
A – Accountable: owns the task and answers for the outcome. The one firm rule of RACI is exactly one Accountable per task — no more, no less.
C – Consulted: gives input before the work is done (two-way conversation).
I – Informed: told about progress or the result (one-way).
S – Support (RASCI only): helps the Responsible role get the task done.

RACI is a generic project-management convention for assigning responsibility, not a legal or certification standard. Adapt the roles and tasks to how your organisation actually works.