Mermaid

 1{{< mermaid >}}
 2sequenceDiagram
 3  participant Alice
 4  participant Bob
 5  Alice->>John: Hello John, how are you?
 6  loop Healthcheck
 7      John->>John: Fight against hypochondria
 8  end
 9  Note right of John: Rational thoughts<br/>prevail...
10  John-->>Alice: Great!
11  John->>Bob: How about you?
12  Bob-->>John: Jolly good!
13{{< /mermaid >}}

 1{{< mermaid >}}
 2flowchart TB
 3  c1-->a2
 4  subgraph one
 5  a1-->a2
 6  end
 7  subgraph two
 8  b1-->b2
 9  end
10  subgraph three
11  c1-->c2
12  end
13  one --> two
14  three --> two
15  two --> c2
16{{< /mermaid >}}

 1{{< mermaid >}}
 2graph TB
 3  sq[Square shape] --> ci((Circle shape))
 4
 5  subgraph A
 6    od>Odd shape]-- Two line<br/>edge comment --> ro
 7    di{Diamond with <br/> line break} -.-> ro(Rounded<br>square<br>shape)
 8    di==>ro2(Rounded square shape)
 9  end
10
11  %% Notice that no text in shape are added here instead that is appended further down
12  e --> od3>Really long text with linebreak<br>in an Odd shape]
13
14  %% Comments after double percent signs
15  e((Inner / circle<br>and some odd <br>special characters)) --> f(,.?!+-*ز)
16
17  cyr[Cyrillic]-->cyr2((Circle shape Начало));
18
19    classDef green fill:#9f6,stroke:#333,stroke-width:2px;
20    classDef orange fill:#f96,stroke:#333,stroke-width:4px;
21    class sq,e green
22    class di orange
23{{< /mermaid >}}

1{{< mermaid >}}
2graph LR
3  A[Hard edge] -->|Link text| B(Round edge)
4  B --> C{Decision}
5  C -->|One| D[Result one]
6  C -->|Two| E[Result two]
7{{< /mermaid >}}

1{{< mermaid >}}
2erDiagram
3  CUSTOMER ||--o{ ORDER : places
4  ORDER ||--|{ LINE-ITEM : contains
5  CUSTOMER }|..|{ DELIVERY-ADDRESS : uses
6{{< /mermaid >}}

 1{{< mermaid >}}
 2journey
 3  title My working day
 4  section Go to work
 5    Make tea: 5: Me
 6    Go upstairs: 3: Me
 7    Do work: 1: Me, Cat
 8  section Go home
 9    Go downstairs: 5: Me
10    Sit down: 5: Me
11{{< /mermaid >}}

 1{{< mermaid >}}
 2gantt
 3  dateFormat  YYYY-MM-DD
 4  title       Adding GANTT diagram functionality to mermaid
 5  excludes    weekends
 6  %% (`excludes` accepts specific dates in YYYY-MM-DD format, days of the week ("sunday") or "weekends", but not the word "weekdays".)
 7
 8  section A section
 9  Completed task            :done,    des1, 2014-01-06,2014-01-08
10  Active task               :active,  des2, 2014-01-09, 3d
11  Future task               :         des3, after des2, 5d
12  Future task2              :         des4, after des3, 5d
13
14  section Critical tasks
15  Completed task in the critical line :crit, done, 2014-01-06,24h
16  Implement parser and jison          :crit, done, after des1, 2d
17  Create tests for parser             :crit, active, 3d
18  Future task in critical line        :crit, 5d
19  Create tests for renderer           :2d
20  Add to mermaid                      :1d
21
22  section Documentation
23  Describe gantt syntax               :active, a1, after des1, 3d
24  Add gantt diagram to demo page      :after a1  , 20h
25  Add another diagram to demo page    :doc1, after a1  , 48h
26
27  section Last section
28  Describe gantt syntax               :after doc1, 3d
29  Add gantt diagram to demo page      :20h
30  Add another diagram to demo page    :48h
31{{< /mermaid >}}

1{{< mermaid >}}
2pie
3  title Key elements in Product X
4  "Calcium" : 42.96
5  "Potassium" : 50.05
6  "Magnesium" : 10.01
7  "Iron" :  5
8{{< /mermaid >}}

 1{{< mermaid >}}
 2mindmap
 3  root((mindmap))
 4    Origins
 5      Long history
 6      ::icon(fa fa-book)
 7      Popularisation
 8        British popular psychology author Tony Buzan
 9    Research
10      On effectiveness<br/>and features
11      On Automatic creation
12        Uses
13            Creative techniques
14            Strategic planning
15            Argument mapping
16    Tools
17      Pen and paper
18      Mermaid
19
20{{< /mermaid >}}

1{{< mermaid >}}
2timeline
3  title History of Social Media Platform
4  2002 : LinkedIn
5  2004 : Facebook : Google
6  2005 : Youtube
7  2006 : Twitter
8{{< /mermaid >}}

 1{{< mermaid >}}
 2timeline
 3  title MermaidChart 2023 Timeline
 4  section 2023 Q1 <br> Release Personal Tier
 5    Buttet 1 : sub-point 1a : sub-point 1b
 6      : sub-point 1c
 7    Bullet 2 : sub-point 2a : sub-point 2b
 8  section 2023 Q2 <br> Release XYZ Tier
 9    Buttet 3 : sub-point <br> 3a : sub-point 3b
10      : sub-point 3c
11    Bullet 4 : sub-point 4a : sub-point 4b
12
13{{< /mermaid >}}

 1{{< mermaid >}}
 2---
 3title: Example Git diagram
 4---
 5gitGraph
 6   commit
 7   commit
 8   branch develop
 9   checkout develop
10   commit
11   commit
12   checkout main
13   merge develop
14   commit
15   commit
16
17{{< /mermaid >}}

 1{{< mermaid >}}
 2    requirementDiagram
 3
 4    requirement test_req {
 5    id: 1
 6    text: the test text.
 7    risk: high
 8    verifymethod: test
 9    }
10
11    element test_entity {
12    type: simulation
13    }
14
15    test_entity - satisfies -> test_req
16{{< /mermaid >}}

 1{{< mermaid >}}
 2    C4Context
 3      title System Context diagram for Internet Banking System
 4      Enterprise_Boundary(b0, "BankBoundary0") {
 5        Person(customerA, "Banking Customer A", "A customer of the bank, with personal bank accounts.")
 6        Person(customerB, "Banking Customer B")
 7        Person_Ext(customerC, "Banking Customer C", "desc")
 8
 9        Person(customerD, "Banking Customer D", "A customer of the bank, <br/> with personal bank accounts.")
10
11        System(SystemAA, "Internet Banking System", "Allows customers to view information about their bank accounts, and make payments.")
12
13        Enterprise_Boundary(b1, "BankBoundary") {
14
15          SystemDb_Ext(SystemE, "Mainframe Banking System", "Stores all of the core banking information about customers, accounts, transactions, etc.")
16
17          System_Boundary(b2, "BankBoundary2") {
18            System(SystemA, "Banking System A")
19            System(SystemB, "Banking System B", "A system of the bank, with personal bank accounts. next line.")
20          }
21
22          System_Ext(SystemC, "E-mail system", "The internal Microsoft Exchange e-mail system.")
23          SystemDb(SystemD, "Banking System D Database", "A system of the bank, with personal bank accounts.")
24
25          Boundary(b3, "BankBoundary3", "boundary") {
26            SystemQueue(SystemF, "Banking System F Queue", "A system of the bank.")
27            SystemQueue_Ext(SystemG, "Banking System G Queue", "A system of the bank, with personal bank accounts.")
28          }
29        }
30      }
31
32      BiRel(customerA, SystemAA, "Uses")
33      BiRel(SystemAA, SystemE, "Uses")
34      Rel(SystemAA, SystemC, "Sends e-mails", "SMTP")
35      Rel(SystemC, customerA, "Sends e-mails to")
36
37      UpdateElementStyle(customerA, $fontColor="red", $bgColor="grey", $borderColor="red")
38      UpdateRelStyle(customerA, SystemAA, $textColor="blue", $lineColor="blue", $offsetX="5")
39      UpdateRelStyle(SystemAA, SystemE, $textColor="blue", $lineColor="blue", $offsetY="-10")
40      UpdateRelStyle(SystemAA, SystemC, $textColor="blue", $lineColor="blue", $offsetY="-40", $offsetX="-50")
41      UpdateRelStyle(SystemC, customerA, $textColor="red", $lineColor="red", $offsetX="-50", $offsetY="20")
42
43      UpdateLayoutConfig($c4ShapeInRow="3", $c4BoundaryInRow="1")
44{{< /mermaid >}}