What is the difference between Mermaid.js and Mermaid Chart?

Mermaid.js is the open-source library that renders diagrams from text. Mermaid Chart is a commercial platform built by the creators of Mermaid.js that adds features like AI generation, a hosted editor, real-time collaboration, and enterprise security.

Can I use Mermaid Chart in my IDE?

Yes, Mermaid Chart has official extensions for Visual Studio Code and JetBrains IDEs, allowing you to create and preview diagrams directly alongside your code.

What types of diagrams can I create?

You can create a wide variety of diagrams including Flowcharts, Sequence Diagrams, Gantt Charts, Class Diagrams, State Diagrams, Entity Relationship Diagrams (ERD), Mind Maps, and C4 Architecture diagrams.

Does Mermaid Chart offer a free version?

Yes, the Basic plan is free forever and includes up to 3 diagrams and basic AI features to get you started.

Is my data secure on Mermaid Chart?

Yes, the platform is SOC2 compliant and offers enterprise-grade security features like Single Sign-On (SSO) and secure access controls to protect your data.

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Diagrams

Freemium

Mermaid Chart

Create and collaborate on professional diagrams using simple text and AI. Mermaid Chart turns Markdown-style code into flowcharts, sequence diagrams, and more for technical teams.

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Rating

Reviews

Upvotes

4 months ago

Listed

Diagrams

Flowcharts

Markdown

Developer Tools

Collaboration

AI Diagram Generator

Technical Documentation

Visual Studio Code

Productivity

Tool information

Provider

Mermaid Chart Inc.

Platforms

Web

Windows

macOS

Linux

VS Code

JetBrains IDEs

Languages

English

API Available

Yes

Added to directory

4 months ago

Last updated

2 months ago

Rating

Not available

Pricing

Freemium

About Mermaid Chart

What the tool does and who it's for

Mermaid Chart is a professional diagramming platform built on the popular Mermaid.js open-source framework. It allows users to create complex visualizations like flowcharts, sequence diagrams, and Gantt charts using simple, Markdown-like text or AI-powered natural language prompts. Designed for developers and technical teams, it offers a collaborative workspace where diagrams can be version-controlled, shared via plugins in tools like VS Code and Confluence, and edited in real-time. The platform simplifies the transition from mental logic to visual documentation by treating diagrams as code.

Key capabilities

AI-Powered Diagramming: Generate complex charts instantly from natural language descriptions or existing codebases.

Text-to-Diagram: Create and edit visuals using a simple Markdown-inspired syntax, ensuring diagrams are easy to version and update.

Real-time Collaboration: Co-edit diagrams with team members, add comments, and share externally with viewer seats.

Extensive Integrations: Seamlessly embed diagrams into VS Code, GitHub, Confluence, Jira, and other developer tools.

Wide Diagram Support: Supports Flowcharts, Sequence Diagrams, Gantt Charts, Mind Maps, ER Diagrams, and C4 Architecture models.

Presentation Mode: Convert your diagrams into professional slide decks directly within the platform.

Whiteboard Feature: Use a visual canvas for brainstorming that can be converted into structured Mermaid code.

Secure & Compliant: Features SOC2 compliance, SSO integration, and secure diagram ownership management.

Pricing

Freemium — plans below

Basic

Free

Up to 3 diagrams
Limited diagram size
Limited AI credits (approx. 15)
1 team & project creation

Plus

$10/mo

Unlimited diagrams
Limitless diagram size
300 AI credits per year
View & comment collaboration

Premium

Enterprise

Contact sales

Unlimited AI credits
Custom contract & invoicing
Dedicated Customer Success Manager
Secure IP transfer to admin

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FAQ

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Common questions about Mermaid Chart