Free AI flowchart generator from a description to a diagram.
Describe a process in plain words, or paste notes or an SOP, and get a clean flowchart with decisions, branches and swimlanes. Refine it, edit it, download it as PNG or SVG.
Your flowchart will appear here
Start to end, decisions as labelled branches, swimlanes if you want them. Then refine it, edit it, and download it as PNG or SVG.
How the flowchart generator works
It draws the diagram the way a good analyst would: one action per box, every decision a question, the main path straight through.
Describe the process
In plain words, one sentence per step, with decisions as questions. Or paste notes, a document, a web page, or an SOP from our SOP generator.
The flowchart draws itself
Start to end, steps as boxes, decisions as labelled yes/no branches, inputs and outputs as parallelograms, swimlanes by role if you want them. The layout is computed, so nothing is dragged into place.
Make it yours
Ask for a change in a sentence, flip it from top-to-bottom to left-to-right, or edit the source with the drawing updating as you type. Download it as PNG or SVG, paste the source into GitHub, Notion or Confluence, or switch to a hand-drawn sketch and take it into Excalidraw.
What makes a flowchart readable, and what the generator draws
- One action per box
- A short verb phrase: “Check the invoice total”, not “Invoice checking”. If a box needs a paragraph, it is two boxes.
- Decisions are questions
- A diamond asks something with a short answer, and every arrow leaving it carries that answer.
- The main path runs straight
- The usual case goes top to bottom (or left to right) without detours. Exceptions branch off and rejoin.
- Nothing dangles
- Every box can be reached from Start, and every path reaches an End. A loose end is a step nobody owns.
- Lanes show hand-offs
- When several roles are involved, swimlanes make every hand-off visible, which is where processes usually break.
- Shapes mean something
- Rounded ends for start and finish, rectangles for steps, diamonds for decisions, parallelograms for documents and data.
Who uses a flowchart generator
Anyone who has tried to explain a process in a paragraph and watched the listener’s eyes glaze over.
Operations and process owners
Map how work actually flows before changing it, and show the hand-offs between teams in one picture.
Analysts and consultants
Turn interview notes into a draft process map in a minute, then refine it in the room.
Product and engineering
User journeys, approval flows, incident runbooks and on-call escalation, in a format that lives in the repo.
Trainers and documentation writers
A diagram for every SOP, drawn from the SOP itself, so the two never drift apart.
Students and teachers
Algorithms, lab procedures and case studies as diagrams, without fighting a drawing tool.
A draft to argue with, not a finished map
The generator draws what you describe. It does not know the step you forgot to mention, the exception that happens every Friday, or the approval that exists only in someone’s head. The fastest way to a correct map is to put this draft in front of the people who do the work and let them correct it.
Before you share it
- Walk the main path from Start to End and check that it is the usual case, not the exception.
- Read every diamond: is the question clear, and are both answers where they should go?
- Look for boxes with no way out. They are steps the description never finished.
- If it is too tall or too wide, flip the direction or split it into two diagrams.
Questions about flowcharts
What does the flowchart generator need from me?
A description of the process in plain words. One sentence per step works best, with the decisions written as questions or as "if this, then that". It can be as short as a sentence or as long as a full SOP; you can paste notes, upload a document or add the text of a web page. If you made an SOP with our SOP generator, one click sends it here.
What kind of flowchart does it draw?
A standard process flowchart: start and end in rounded terminals, steps in rectangles, decisions in diamonds with labelled yes/no branches, inputs and outputs in parallelograms, and sub-processes in double-edged boxes. Swimlanes group steps by the role that performs them. It reads top to bottom by default, or left to right if you prefer.
Can I change the result?
Three ways. Ask for a change in a sentence ("add a step for manager approval", "split the review into two decisions") and the diagram is redrawn. Edit the diagram source directly, with the drawing updating as you type. Or switch the direction and detail level and generate again.
What is the diagram source?
The drawing is described in Mermaid, a widely used text format for diagrams. The generator writes it, the page draws it, and you can copy it. Mermaid is supported by GitHub, Notion, Confluence, Obsidian and most documentation tools, so the same text can live in your docs and stay editable.
Which formats can I download?
PNG at double resolution, for slides, documents and chat. SVG, which scales to any size and can be edited in Figma, Illustrator or Inkscape. And the Mermaid source as text.
Can I get it as an Excalidraw sketch?
Yes. Switch the view to Sketch and the same diagram is rebuilt as a hand-drawn, fully editable Excalidraw drawing, laid out as the diagram was. Edit it there, then download it as an .excalidraw file, or copy it and paste it straight into excalidraw.com, Obsidian or the VS Code extension. Every box, arrow and label stays a separate element you can move and restyle.
Why does the layout look the way it does?
The layout is computed automatically from the steps and their connections, so nothing has to be dragged into place and a change to the process is a change to one line of text. The trade-off is that you cannot move a single box by hand. If a diagram is too tall, try left-to-right; if it is too busy, try the simple detail level or split the process in two.
Is it free? Are there limits?
It is free and needs no account. There is a daily allowance of flowcharts per visitor, and descriptions are capped at 2,000 words. A diagram takes about ten to thirty seconds to draw.
Is my process information stored?
Your description is sent to a third-party language model to draw the diagram and is not used to train models. We do not store the description or the diagram: nothing is kept once the response has reached your browser. We keep only counts, such as how many diagrams were drawn today, to run the free allowance.
What makes a flowchart readable?
One action per box, written as a short verb phrase. Decisions phrased as questions with every outgoing arrow labelled. A main path that runs straight through, with exceptions branching off and rejoining rather than tangling the spine. Nothing dangling: every box reachable from the start, every path reaching an end. The generator is built around those rules; the honest note below the tool says what still needs a human.
Can it draw other diagram types?
It is built for process flowcharts: how work moves from a trigger to an outcome. It is not meant for org charts, system architecture, mind maps or Gantt charts. For those, a general diagramming tool will serve you better.