Mermaid

Mermaid is an AI-powered diagramming tool for text, code, and visual edits, with support for flowcharts, sequence diagrams, ER diagrams, timelines, and team collaboration.

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Overview

Mermaid is an AI-powered diagramming tool for creating living diagrams from text, code, or a visual editor. It is designed for people who need to move from notes, prompts, or Mermaid syntax to shareable diagrams without rebuilding the same idea in a separate drawing tool.

The product supports a range of diagram formats, including flowcharts, sequence diagrams, ER diagrams, timelines, mind maps, org charts, Gantt charts, and more. The source also shows collaboration and workflow features such as live editing, external sharing on higher plans, and integrations with plugins and VS Code.

Core capabilities

Text-to-diagram generation

Describe a diagram in plain language and Mermaid AI turns it into a structured visual. The AI page also shows support for editing labels, layout, style, and theme with prompts.

Code-based diagram authoring

Write diagrams in Mermaid syntax and generate charts directly from code. This supports users who want versionable text-based diagrams instead of manual drawing.

Visual editing with code sync

Adjust nodes, labels, edges, shapes, and colors with clicks in the Visual Editor. The editor updates the underlying code automatically as you work.

Real-time and async collaboration

Work on diagrams with others on a shared canvas, including live co-editing and asynchronous feedback. Higher-tier pricing also mentions view/comment collaboration and external sharing.

Plugins and editor integration

Embed Mermaid in tools such as GitHub Copilot and Confluence, and use VS Code to turn codebase context into diagrams without switching editors.

Broad diagram coverage

Create flowcharts, sequence diagrams, ER diagrams, timelines, mind maps, Gantt charts, org charts, class diagrams, state diagrams, and more from the same workspace.

Common use cases

Convert text into working diagrams
Teams can turn rough notes, meeting transcripts, or plain-language ideas into diagrams that are easier to review and share.
Document technical systems
Engineers and technical teams can document systems, workflows, and architecture using Mermaid syntax directly from a codebase.
Plan work and communicate status
Product, operations, and project teams can map processes, timelines, roadmaps, and dependencies in formats such as flowcharts, Gantt charts, and timelines.
Collaborate across teams and time zones
Distributed teams can co-edit diagrams live or leave feedback asynchronously, then share visuals once they are ready.
Work inside existing tools
Organizations using tools like GitHub Copilot, Confluence, or VS Code can keep diagram creation inside their existing workspace instead of moving to a separate editor.

Pros and Cons

Pros

Supports multiple creation modes: AI prompts, Mermaid syntax, and a visual editor.
Covers many diagram types from technical diagrams to planning and process visuals.
Visual editing keeps code synchronized, which suits users who want both direct manipulation and text-based control.
Collaboration features support live co-editing and async review for teams.
Pricing includes a free Basic tier plus paid plans for more advanced use and team controls.

Cons

Some collaboration and security capabilities appear tied to paid plans, so the free tier is limited.
The source does not provide a full public integration list or exhaustive platform support details.
The product page set is rich on workflow examples, but pricing and feature specifics are split across multiple pages.

FAQ

What is Mermaid used for?

Mermaid is a diagramming tool for creating and editing visuals from text, code, or a visual editor. The source highlights flowcharts, sequence diagrams, ER diagrams, timelines, mind maps, org charts, and other diagram types.

Is Mermaid free to use?

Yes. The pricing page includes a Basic free plan, and paid Plus, Premium, and Enterprise plans for more advanced usage and collaboration needs.

How do you create diagrams in Mermaid?

Mermaid supports multiple workflows: start with plain text in AI, write Mermaid syntax in code, or refine diagrams in the Visual Editor with clicks.

Can teams collaborate on diagrams?

The source shows collaboration features such as live co-editing, view and comment collaboration, and sharing externally on higher-tier plans.

Where can Mermaid fit into a team workflow?

The source indicates Mermaid can be used in workflows that include IDEs, docs, wikis, presentations, and plugins such as GitHub Copilot, Confluence, and VS Code.

Quick Facts

Category: AI-powered diagramming
Source domain: mermaidchart.com
Primary workflows: AI, code, visual editor
Diagram types: Flowchart, sequence, ER, timeline, mind map, org chart, Gantt, and more
Team features: Live collaboration, comments, external sharing on paid plans
Pricing: Free Basic plan plus paid Plus, Premium, and Enterprise plans