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Critical path diagram generator.

Create a critical path diagram by describing the activities, durations and dependencies in a project. The network makes the longest dependent sequence and parallel work easy to inspect.

PERT / CPM Network & Gantt ChartEnter to send

Free account, no card · Export SVG, PNG or PDF

See it work

Critical path diagram examples.

Same tool, four requests. Every drawing below is a real render.

What you type
Create a critical path diagram for a house build: excavate, pour the foundation, frame the house, install the roof, rough in services, then complete final inspection.
Then tryAdd a two-day permit check before excavation.Change framing to take ten days.
PERT / CPM network & Gantt chart: House build path
PERT / CPM network & Gantt chart · PMI PMBOK 7 + Moder 1983 (AON/PDM) · schematex-pert

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The drawing

What a critical path diagram is.

A critical path diagram is a project network that shows the activities and dependencies needed to complete work. The critical path is the longest sequence of dependent activities, so a delay on it delays the whole project.

Activities outside that sequence may have slack. The diagram helps a manager focus attention on the work that changes the finish date rather than every task equally.

Standard
PMI PMBOK 7 + Moder 1983 (AON/PDM)
Also follows
Gantt 1910
Engine
schematex-pert
Editable
Double-click text, drag nodes
Export
SVG · PNG · PDF
PERT / CPM network & Gantt chart: What a critical path diagram is
Who uses it

Who uses critical path diagrams.

PERT / CPM network & Gantt chart: ERP teamsERP teams

Coordinate configuration, data, training and migration testing before go-live.

PERT / CPM network & Gantt chart: Healthcare facilities teamsHealthcare facilities teams

Track construction, equipment and commissioning dependencies before opening a wing.

PERT / CPM network & Gantt chart: Film producersFilm producers

Identify the preparation and post-production work that controls delivery.

How it works

How to make a critical path diagram in three steps.

01

Describe it

One paragraph is enough to start.

“Create a critical path diagram for a house build: excavate, pour the foundation, frame the house, install the roof, rough in services, then complete final inspection.”
02

See the drawing

Drawn by the right engine.

PERT / CPM network & Gantt chart: House build path
03

Say what changes

Every edit keeps a version.

Add a two-day permit check before excavation.
V2 · DRAWN FROM V1, NOTHING RETYPED
FAQ

Common questions

What is a critical path diagram?

A network of project activities and dependencies that identifies the longest path to completion.

Why does the critical path matter?

An activity on the critical path has no schedule slack, so delaying it moves the planned project finish date.

What information is needed to find a critical path?

You need the activities, an estimated duration for each one and the predecessor relationships between them.

Can a project have parallel critical work?

Yes. Parallel branches can meet at the same milestone, and more than one sequence can be critical when their total durations match.

Related tools

Other drawings for the same work.

Find your critical path now.

Free account, no card. Describe the schedule and dependencies to get started.

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