FreeDiagram
100% FREE · NO SIGNUP · UNLIMITED

Free AI Flowchart Maker

Describe any process in plain English and FreeDiagram draws the flowchart instantly — decision branches, loops, and all. Free, unlimited, no signup.

auto-detect · we pick the diagram type for you  ·  ⌘↵ to run

Free forever · no signup · no credit card · unlimited diagrams

Live sample · CI/CD pipeline — type above to make your own
CI/CD Pipeline — Flowchart Flowchart with 13 nodes and 15 edges. CI/CD Pipeline A → B B → C C → D D → E: no no E → A D → F: yes yes F → G G → H H → I: no no I → E H → J: yes yes J → K K → L: no no L → E K → M: yes yes CI Passes? CI Passes? Build Image Build Image Deploy Staging Deploy Staging Stage OK? Stage OK? Rollback Staging Rollback Staging Deploy Prod Deploy Prod Canary OK? Canary OK? Rollback Prod Rollback Prod Released Released Notify Author Notify Author Dev Push Dev Push Lint Lint Unit Tests Unit Tests

A flowchart maps a process as a sequence of steps and decision points. Whether you are documenting a business workflow, planning software logic, or visualising a customer journey, a clear flowchart makes it easy for anyone to follow. FreeDiagram reads your plain-English description and produces a clean, structured flowchart in seconds — no drawing, no drag-and-drop, no templates to wrestle with.

How to make a flowchart in seconds

  1. Describe your process

    Type what the flowchart should show — a workflow, a decision tree, a system process. One sentence is enough to start.

  2. FreeDiagram builds the diagram

    The AI reads your description, identifies the steps and branches, and draws a properly structured flowchart automatically.

  3. Review and refine

    Not quite right? Adjust your description and regenerate. Each run is free and instant.

  4. Download as SVG or PNG

    Export a sharp vector SVG or a high-resolution PNG — both free, no watermark.

What is a flowchart and when should you use one?

A flowchart is a diagram that represents a process as a series of steps connected by arrows, with diamond shapes for decision points that branch the flow. It is one of the most widely used diagram types because it works for almost any sequential process — from a five-step checkout to a complex multi-team approval workflow.

Flowcharts are particularly useful in software development for documenting algorithms and user flows, in operations for mapping business processes, in healthcare for clinical protocols, and in education for explaining procedural concepts. The standard symbols — rounded rectangles for start/end, rectangles for actions, diamonds for decisions, parallelograms for input/output — give any reader a shared visual language.

A good flowchart balances completeness with clarity. Too few steps and the diagram skips important logic; too many and it becomes unreadable. AI generation helps here: you describe the process in natural language, and the system decides the right level of granularity to keep the diagram readable.

FreeDiagram supports flowcharts of any complexity — linear sequences, branching decision trees, loops with exit conditions, and swimlane-style flows across multiple actors. You can generate a first draft in seconds, then refine it by adjusting your description and regenerating.

Frequently asked questions

Is the flowchart maker really free?

Yes — completely free, unlimited, with no signup and no credit card. The site is funded by ads.

Do I need to know flowchart symbols?

No. Just describe the process in plain English. FreeDiagram picks the right symbols and layout automatically.

Can I download the flowchart?

Yes — download as SVG (scalable vector, ideal for presentations and web) or PNG (high-resolution raster). Both formats are free and watermark-free.

How detailed should my description be?

A single sentence is enough to get started. More detail — branching conditions, actor names, specific steps — produces a more complete diagram.

Can it make swimlane flowcharts?

Yes. Mention the lanes or actors in your description (e.g. across customer, support, and billing lanes) and FreeDiagram will lay out the swimlanes accordingly.