
Create diagrams and charts from text in a simple, intuitive, and highly customizable way.
Visit WebsiteThe Bottom Line
Entry price
Free, no paid tier
Biggest pro
Diagrams as code
Biggest con
Limited styling
TL;DR - Mermaid
- Generates diagrams and charts from text definitions.
- Supports various diagram types like flowcharts and sequence diagrams.
- Simplifies visualization for developers and technical writers.
What is Mermaid?
Available on: Web
Pros & Cons
Pros
- Diagrams as code
- GitHub native support
- Free and open source
- Many diagram types
- Easy syntax
Cons
- Limited styling
- Complex diagrams hard
- Rendering varies
- Documentation gaps
- Less flexible than draw tools
Ratings Across the Web
Ratings aggregated from independent review platforms. Learn more
Key Features
Pricing Plans
7-day Free TrialPricing checked Jul 8, 2026
Open Source
Free
- MIT licensed
- Flowcharts & diagrams
- Text-to-diagram
- Community support
Basic
Free
- 3 diagrams
- Limited AI usage
- Mermaid Chart hosted
Plus
$8/month
- Unlimited diagrams
- Scalable AI usage
- Team collaboration
Premium
Custom
- Massive AI usage
- SSO
- Knowledge management
How Mermaid's pricing compares
At $8/mo, Mermaid is mid-range of its 3 direct competitors ($1.7 to $9/mo across the set).
Entry paid plan, monthly. Pricing checked Jul 8, 2026.
Reviews

Review Mermaid, get a free AI guide
Share your experience and we will send you Improve Your Thinking Patterns Using ChatGPT, free.
Across 6 verified user reviews on G2
Add your hands-on experience using the offer above to help the next buyer.
Best Mermaid Alternatives
Top alternatives based on features, pricing, and user needs.
Still deciding?
Most buyers shortlist 2 or 3 tools before committing. Pull a side-by-side comparison or browse the full alternatives shortlist below.
Explore More
Mermaid FAQ
How does Mermaid simplify the creation of diagrams for documentation?
Which teams would benefit most from using Mermaid?
How is Mermaid's approach to diagramming different from a tool like Lucidchart?
What kind of limitations should users be aware of when using Mermaid?
Does Mermaid include a free tier for its diagramming capabilities?
Can Mermaid diagrams be integrated with GitHub workflows?
Source: mermaid.js.org