Mermaid for

Flowcharts

See every step and decision in one view

Document how a process runs today, plan how it should run, or hand someone the path through it without walking them through it yourself.

What is a flowchart?

A flowchart is a diagram that maps out a process, workflow, or decision tree using shapes connected by arrows. Each shape represents a step, decision, or endpoint. Together, they show how something moves from start to finish.

Flowcharts originated in the 1920s as industrial process diagrams, and were formalized as a programming tool by IBM engineers in the 1940s. In Mermaid, flowcharts are written in plain text and rendered instantly, so they’re easy to version control, embed in docs, and update without starting over.

What you can map
with a flowchart

Software logic and control flow

CI/CD pipelines and deployment steps

Onboarding and offboarding processes

Decision trees and approval workflows

User flows and product journeys

Incident response and escalation paths

Business processes and SOPs

Software logic and control flow

CI/CD pipelines and deployment steps

Onboarding and offboarding processes

Decision trees and approval workflows

User flows and product journeys

Incident response and escalation paths

Business processes and SOPs

Who uses flowcharts
on Mermaid

Developers

Map features, logic branches, and system behavior as you build. Then keep diagrams living next to your code.

Tech Leads

Surface dependencies and decision points so your team can move without getting blocked.

QA Engineers

Visualize test flows and edge cases before a line gets written.

Project Managers

Map workflows once and share them with anyone: no login, no friction.

Business Analysts

Document the real process and spot bottlenecks before they compound.

Consultants

Show clients exactly how a process works or needs to change. Clear enough for a boardroom, precise enough for an engineer.

Startup Founders

Diagram your product flow or business logic fast enough to keep up with how quickly things change.

When a flowchart is
the right call

Less time syncing, more time building

One shared canvas for mapping ideas, collaborating live, and keeping teams on the same page, literally.

FAQ

Common questions about building flowcharts in Mermaid.

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