Free Cycle Diagram Generator Online - Circular Process Diagrams - Small Study Tools
Circular Process Diagrams · Works on Mobile

Cycle Diagram Generator

Create professional circular process and cycle diagrams instantly. Add steps, choose colours and export as PNG. Fully editable on mobile. Pro Mode adds themes, custom fonts, icons, animations, connector styles, centre labels and SVG export.

100% Private — saved only in your browser, never sent to a server
Pro Version is Free for now
✓ Themes · Custom fonts · Icons · Animations ·
Connector styles · Centre label · SVG export unlocked
Day Night
Diagram Settings
460px
62px
Theme Presets PRO
Typography & Style PRO
11px
10
Centre Label PRO
Animation PRO
Add Step
Selected: none
Steps 0 steps
No steps yet. Add a step above or load a sample.
Cycle Diagram
Add steps to generate your diagram
Export diagram
📖 Quick Reference
🔄Steps are arranged around the circle in the order shown in the Steps list.
↑↓Use the arrow buttons to reorder a step, works the same on touch and mouse.
Arrows always connect the last step back to the first, showing the cycle repeats.
💡 Cycle Diagram Tips PRO

How to Use the Cycle Diagram Generator

From a blank title to a finished circular diagram. Fully editable on mobile.

1
Title Your Cycle
Type a title, or tap "Load Sample" for a ready-made example.
2
Add Your Steps
Give each step a label, a colour, and an optional description.
3
Watch It Loop Live
The circle redraws itself as you type, arrows loop the last step back to the first.
4
Export or Go Pro
Export as PNG, or unlock themes and animations in Pro.

Everything above runs entirely in your browser. Your diagram is never uploaded to a server, so it stays completely private from start to finish.

Specifications
Price Free
Signup Not Required
Data Storage Local only (this device)
Layout Automatic circular arrangement
Steps Unlimited, reorder with up/down arrows
Colour Themes 9 (Pro)
Export Formats PNG · SVG (Pro) · Embeddable HTML (Pro)
Pro Tools Fonts · Icons · Centre Label · Animations
Platform Optimized for Web & Mobile
Category Strategy & Diagrams
Found a bug or something not working right? Let us know and we'll fix it. Every report helps make this tool better.
Report an Issue

Cycle Diagram Generator, Free and Online

A cycle diagram generator arranges process steps around a circle with the last step looping back to the first, showing a process that repeats rather than one that ends. This one is fully editable on mobile, includes ready-made colour themes, and runs entirely in your browser.

Some processes have a clear finish line, and a flowchart handles those well. Other processes are never really finished, a product keeps getting refined, a lesson keeps getting reflected on, quality keeps getting checked and improved, and forcing that kind of process into a straight line hides the very thing that makes it work: it loops. This free cycle diagram maker online tool lets you add steps with a label, an optional description and a colour, and the diagram arranges them automatically around a circle with arrows connecting each step to the next and the final step back to the first. Reorder steps with the up and down arrows, which work identically on touch and mouse. Click "Load Sample" to see a filled-in 6-step example immediately. Export the finished diagram as a PNG. Pro Mode adds colour themes, custom fonts, step icons, a centre label, connector styles, spin and pulse animations, and export to SVG.

1Simple vs Pro, What Each Mode Includes

FeatureSimple ModePro Mode (Free)
Unlimited steps, custom colours per stepIncludedIncluded
Automatic circular layout, curved arrowsIncludedIncluded
Reorder steps, sample diagram, export as PNGIncludedIncluded
9 colour themes (Ocean, Forest, Sunset, Neon and more)Not includedIncluded
Custom fonts, node shapes, connector and arrow stylesNot includedIncluded
Step icons, centre label with sub-textNot includedIncluded
Spin, pulse, fade-in and bounce animationsNot includedIncluded
Export as SVG, copy embeddable HTMLNot includedIncluded

2What a Cycle Diagram Is Good For

🔄
Continuous Improvement
🚀
Product Development
🌊
Natural Processes
📝
Review & Feedback Loops

The single feature that separates a cycle diagram from a flowchart is that arrow looping back from the last step to the first. A flowchart says this ends here, a cycle diagram says this happens again. That distinction matters more than it looks, since drawing a genuinely repeating process as a straight line quietly implies it finishes once, which can lead a reader to treat a one-time step as the end of the story rather than the start of the next lap. Most cycle diagrams work best with four to eight steps, fewer than that looks more like a back and forth than a real cycle, and more than that tends to crowd the labels around the circle.

3Where the Plan Do Check Act Cycle Actually Came From

The most famous cycle diagram in business has a more layered history than most people realise. Physicist Walter Shewhart introduced a three step cycle, Specify, Produce, Inspect, in his 1939 book on statistical quality control, a lineage documented by the Lean Enterprise Institute's resource guide to PDCA. His student, W. Edwards Deming, expanded it into a four step cycle in 1950 and presented it to the Japanese Union of Scientists and Engineers. It was the Japanese executives at that seminar who actually recast Deming's version into the now familiar Plan, Do, Check, Act cycle in 1951, and Deming himself later preferred calling the final step Study rather than Check, since he felt Study better captured the analytical work that stage was meant to involve. Three names, three decades, and a name change even the originator disagreed with, condensed by most retellings into a single "Deming invented PDCA" sentence.

QuestionQuick Answer
What connects the last step to the first?A looping arrow, the defining feature of a cycle diagram
How many steps work best?Usually 4 to 8, fewer looks like a back and forth, more crowds the labels
Who created the original 3-step cycle?Walter Shewhart, in 1939
Who recast it as Plan Do Check Act?Japanese engineers at JUSE, in 1951, based on Deming's 1950 version
Privacy Note

Everything, including Pro Mode's themes, custom fonts, icons and animations, runs entirely in your browser using JavaScript. Your diagram is saved only in local storage on your own device, and is never sent to a server.

4Frequently Asked Questions

How do I make a cycle diagram online for free?
Type a title for your cycle, then add each step with a label, an optional description and a colour. The diagram arranges the steps around a circle automatically, with arrows connecting each step to the next and the last step back to the first. Reorder steps with the up and down arrows, which work the same on touch and mouse. Export the finished diagram as a PNG. No signup is required, and everything is saved only in your browser.
What is a cycle diagram used for?
A cycle diagram shows a process that repeats rather than one that ends, with the final step looping back to the first. It is used for continuous improvement processes, product development cycles, the water cycle and other natural processes, review and feedback loops, and any workflow where the point is that it happens again rather than finishing once.
What is the difference between a cycle diagram and a flowchart?
A flowchart usually has a clear start and end point, with the process finishing once it reaches the final step. A cycle diagram deliberately loops the last step back to the first, showing that the process is meant to repeat continuously rather than terminate, which is why cycle diagrams are the standard way to represent things like the Plan Do Check Act cycle or a product development cycle that keeps iterating.
Where does the Plan Do Check Act cycle come from?
Physicist Walter Shewhart introduced a three step cycle, Specify, Produce, Inspect, in his 1939 book on statistical quality control. His student W. Edwards Deming expanded it into a four step cycle in 1950 and presented it to the Japanese Union of Scientists and Engineers. Japanese executives who attended that seminar recast Deming's version into the now familiar Plan Do Check Act cycle in 1951, and Deming himself later preferred calling the final step Study rather than Check, since he felt Study better captured what should actually happen at that stage.
How many steps should a cycle diagram have?
Most cycle diagrams work best with four to eight steps. Fewer than three can look more like a back and forth than a genuine cycle, and more than eight tends to crowd the labels around the circle and make the diagram harder to read at a glance.
Is my cycle diagram data private?
Yes. Everything, including Pro Mode's themes, custom fonts, icons and animations, runs entirely in your browser using JavaScript. Your diagram is saved only in your browser's local storage, and is never sent to a server.

Grounded in the documented Shewhart to Deming to JUSE timeline, not the flattened single-inventor story most sites repeat. The full history is detailed on the Lean Enterprise Institute's PDCA resource guide. For related process and diagram tools on the rest of this site, see the Flowchart Generator and the full SmallStudyTools.com tool library.

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