Swimlane Diagram Generator
Map a cross-functional process in your browser. Add lanes and steps, draw the handoffs, or describe the process and let AI draft it. Download editable PowerPoint, PNG or SVG: every lane, step and arrow stays a real shape you can keep editing.
What is a swimlane diagram?
A swimlane diagram is a process map split into lanes, one per actor. Each step sits in the lane of the person, team or system that does it, and arrows show where the work passes from one lane to another. Those handoffs are where processes usually slow down or break, which is why the format is a staple of business analysis, operations and service design. You'll also see it called a cross-functional flowchart.
How to make a swimlane diagram
- Name the lanes. Give each lane an actor: a person, team, department or system. Double-click a lane name in the sidebar to rename it, and use Add lane for more (up to six).
- Add the steps. Click the empty space after the last step in a lane to add a step, or the + between two steps to insert one. Double-click a step, or select it and press
Enter, to rename it. - Draw the handoffs. Hover a step and drag the small arrow handle on its right edge to the next step. Arrows can be straight, curved or orthogonal.
- Rearrange. Drag a step to reorder it in its lane or move it to another lane. Arrows stay attached. Undo and redo cover every edit.
- Download. Download a PowerPoint file where every lane, step and arrow is an editable shape, or a PNG or SVG image.
Keyboard shortcuts: Enter renames the selected step, Delete removes it, Ctrl/⌘ + D duplicates it, Ctrl/⌘ + Z undoes and Ctrl/⌘ + Shift + Z redoes.
Draft a swimlane with AI
If you'd rather start from words, click AI generate and describe the process in plain English: who does what, in what order, and where the work changes hands. The AI chooses the lanes and steps and draws the arrows. If you already know the lanes, list them and it will use exactly those. The draft lands in the same editor, so every lane, step and arrow can be changed before you download. Free accounts get two AI drafts a day.
Making a swimlane diagram in PowerPoint
PowerPoint has no swimlane layout. The usual workaround is a table or a stack of rectangles for the lanes, with shapes and connectors drawn on top, and every new step means nudging the rest into place. This tool does the layout for you and downloads a slide built from native PowerPoint shapes, so you can keep editing it there: rename a step, recolour a lane or add an animation. If you'd rather start from a designed slide, browse SlideModel's swimlane diagram templates, or read the guide to swimlane diagrams.
Swimlane diagram vs flowchart
Both show the steps of a process in order. A flowchart answers what happens next; a swimlane diagram also answers who does it, because each step sits in its actor's lane. Choose a swimlane when the process crosses teams and the handoffs are the story, such as order to cash, support escalation or employee onboarding. When one person or team does everything, a plain flowchart or a numbered list is quicker to read.
Tips for a clear swimlane
- Lanes are actors, never time. Time runs left to right within each lane.
- One verb per step. "Customer submits request" beats "Customer fills in the request form and submits the validated data with attachments".
- Draw arrows where work changes hands. Within a single lane, left-to-right order is usually enough.
- Six lanes is plenty. Readers can't follow more than five or six parallel actors on one slide. Split bigger processes into stages.
- One diagram, one process. Put "as-is" and "to-be" on separate slides and present them in sequence.
Swimlane diagram examples
- Customer support escalation: Customer, Support, Engineering. The handoff from support to engineering, and back to the customer, is the part worth showing.
- Order fulfilment: Customer, Sales, Warehouse, Finance. Order placed, stock checked, picked and shipped, payment recorded.
- Employee onboarding: HR, Manager, IT, New hire. Offer accepted, accounts and equipment set up, first-week plan.
Each of these is also one of the starting examples in the AI draft window.
Frequently asked questions
What is a swimlane diagram?
A swimlane diagram is a process map divided into lanes, one per actor: a person, team, department or system. Each step sits in the lane of whoever does it, and arrows show the handoffs between lanes. It is also called a cross-functional flowchart or a Rummler-Brache diagram, and it's standard in business analysis, operations, Six Sigma and customer-journey work.
Can I edit the diagram in PowerPoint after downloading it?
Yes. The PowerPoint download draws every lane, step and arrow as a native shape with editable text, so you can rename, recolour, move or animate anything in PowerPoint. Most online diagram tools either have no PowerPoint export or place a picture of the diagram on the slide.
Do I need an account?
Yes, a free SlideModel account. It takes a minute, needs no credit card, and unlocks the editor, every download (PowerPoint, PNG and SVG) and two AI drafts a day.
How does the AI draft work?
Click AI generate and describe the process in a few sentences, for example "A customer files a ticket. Support triages it and escalates to engineering after 24 hours." The AI picks the lanes and steps and draws the handoffs, and you edit the result like any other diagram. You can also name the lanes it should use. Free accounts get two drafts a day and subscribers up to fifty.
What's the difference between a swimlane diagram and a flowchart?
A flowchart shows the order of steps in a process. A swimlane diagram shows the same steps plus who does each one, by placing them in lanes. Use a swimlane when the process crosses teams and the handoffs are the point; use a plain flowchart when one person or team does everything.
How many lanes and steps can a diagram have?
Up to six lanes and twenty steps per lane, with labels up to 80 characters. That keeps the diagram readable on one 16:9 slide. For a bigger process, split it into stages and give each stage its own slide.
How do I draw or delete an arrow?
Hover a step and a small arrow handle appears on its right edge. Drag it onto another step to connect them; let go over empty space to cancel. To delete an arrow, hover it and click the × at its midpoint, or right-click it.
Does it work on a phone or tablet?
Partly. On a touchscreen you can tap to select, double-tap to rename, tap the empty end of a lane to add a step, edit lanes, use AI and download. Moving steps and drawing arrows need a mouse or trackpad, so build bigger diagrams on a computer.
Is my work saved?
Yes. Every edit is saved in your browser, so reloading the page keeps your diagram. The diagram itself is never uploaded (only the description you send to the AI draft reaches our server), which also means it doesn't sync to other devices.