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Activity diagram maker.

Create an activity diagram that shows how work moves through actions, decisions, and repeat paths. Describe the start, each activity, branching conditions, and the possible end states.

FlowchartEnter to send

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See it work

Activity diagram examples.

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

What you type
Create an e-commerce order-processing activity diagram: start when an order is placed, check inventory, notify the customer and cancel if unavailable, reserve available items, authorize payment, then ship successful orders or notify and cancel failed payments.
Then tryAdd a fraud-screening check before payment authorization.Change the unavailable path to offer a backorder.
Flowchart: E-commerce order processing
Flowchart · Sugiyama layered DAG + orthogonal routing · schematex-flowchart

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The drawing

What an activity diagram is.

An activity diagram shows the flow of control through a process. It starts with an initial action, follows activities and decisions, and ends when the process reaches a final state.

Use it to document system behavior or a business workflow when the important question is what happens next. Branches make alternate outcomes explicit, and loops show work that repeats until a condition is met.

Standard
Sugiyama layered DAG + orthogonal routing
Engine
schematex-flowchart
Editable
Double-click text, drag nodes
Export
SVG · PNG · PDF
Flowchart: What an activity diagram is
Who uses it

Who uses activity diagrams.

Flowchart: Product and engineering teamsProduct and engineering teams

Order and transaction flows that reveal decision points such as availability and payment authorization.

Flowchart: Operations teamsOperations teams

Employee processes with handoffs, reviews, and outcomes that need a shared sequence.

Flowchart: Teachers and administratorsTeachers and administrators

Classroom activity routines that make preparation, participation, and follow-up steps visible.

How it works

How to make an activity diagram in three steps.

01

Describe it

One paragraph is enough to start.

“Create an e-commerce order-processing activity diagram: start when an order is placed, check inventory, notify the customer and cancel if unavailable, reserve available items, authorize payment, then ship successful orders or notify and cancel failed payments.”
02

See the drawing

Drawn by the right engine.

Flowchart: E-commerce order processing
03

Say what changes

Every edit keeps a version.

Add a fraud-screening check before payment authorization.
V2 · DRAWN FROM V1, NOTHING RETYPED
FAQ

Common questions

What is an activity diagram used for?

It visualizes the sequence of actions and decisions in a workflow, business process, or system behavior.

What should an activity diagram include?

Include a start, actions, decisions with labeled outcomes, any repeat path, and clear end states.

How do I show a decision point?

Describe the condition and what happens for each outcome. The flowchart can show that as a decision shape with labeled branches.

How is an activity diagram different from a sequence diagram?

An activity diagram focuses on the flow of work and decisions. A sequence diagram focuses on messages exchanged between participants over time.

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Draw an activity diagram.

Free account, no card. Describe the actions, choices, and final outcomes.

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