Study & YouTube tool
Mindmap JSON Generator
The Mind Map JSON Generator builds a structured JSON tree from a simple text outline — the first line becomes the central topic and every following line becomes a branch. You can then paste the JSON into any mind-mapping or diagram tool.
The conversion runs entirely in your browser; your outline never leaves your device.
Privacy & data handling
Browser processingThis tool processes your input locally in your browser. Nothing is uploaded to a server or sent to an external service.
Interactive tool
Mindmap JSON Generator
Computer Science
├── Programming & Algorithms
│ ├── Data Structures
│ │ ├── Arrays & Linked Lists
│ │ ├── Trees & Graphs
│ │ └── Hash Tables
│ └── Algorithms
│ ├── Sorting & Searching
│ └── Dynamic Programming
├── Systems & Architecture
│ ├── Operating Systems
│ │ ├── Process Scheduling
│ │ └── Memory Management
│ └── Computer Networks
│ ├── TCP/IP Protocol Suite
│ └── Routing & Switching
└── Artificial Intelligence
├── Machine Learning
│ ├── Supervised Learning
│ └── Neural Networks
└── Natural Language Processing
{
"name": "Computer Science",
"children": [
{
"name": "Programming & Algorithms",
"children": [
{
"name": "Data Structures",
"children": [
{
"name": "Arrays & Linked Lists"
},
{
"name": "Trees & Graphs"
},
{
"name": "Hash Tables"
}
]
},
{
"name": "Algorithms",
"children": [
{
"name": "Sorting & Searching"
},
{
"name": "Dynamic Programming"
}
]
}
]
},
{
"name": "Systems & Architecture",
"children": [
{
"name": "Operating Systems",
"children": [
{
"name": "Process Scheduling"
},
{
"name": "Memory Management"
}
]
},
{
"name": "Computer Networks",
"children": [
{
"name": "TCP/IP Protocol Suite"
},
{
"name": "Routing & Switching"
}
]
}
]
},
{
"name": "Artificial Intelligence",
"children": [
{
"name": "Machine Learning",
"children": [
{
"name": "Supervised Learning"
},
{
"name": "Neural Networks"
}
]
},
{
"name": "Natural Language Processing"
}
]
}
]
}• D3 / ECharts Compatible JSON: The output nested JSON tree adheres to standard visualization schemas, ready to drop directly into D3 hierarchical layouts or Markmap.
• Deterministic Structure: Tree relationships are parsed deterministically from your outline indentation without hallucinating additional nodes.
• Multiple Formats: Switch between hierarchical nested JSON, flat node relational lists, Markdown outlines, and ASCII tree diagrams.
• 100% In-Browser Privacy: Your outlines and generated JSON structures remain 100% local inside your browser memory.
Overview
What does Mindmap JSON Generator do?
Type or paste one topic per line. The first line is the map's root, and each remaining line is a child branch. You can create deeper structure by separating a branch and its sub-branches with a comma or semicolon on the same line.
The tool outputs clean, formatted JSON you can copy and paste directly into a mind map app that imports JSON.
Under the hood
How does it work?
The first non-empty line becomes the root node's name. Each following line becomes a child: if the line contains commas or semicolons, the first part is the branch and the rest become its sub-branches. Lines without separators become simple leaf nodes. The result is serialized as an indented JSON object.
Key features
Features of Mindmap JSON Generator
Use cases
When should you use Mindmap JSON Generator?
Brainstorming sessions
Dump ideas as a flat list, then convert to a structured map for visual exploration.
Planning essays and talks
Outline a topic and its arguments, then export the structure to a diagram tool.
Study topic breakdowns
Break a subject into branches, then review the tree structure before an exam.
Step-by-step
How to use Mindmap JSON Generator
- Step 1
Enter your topic and subtopics.
- Step 2
The tool generates a JSON mindmap structure.
- Step 3
Copy the JSON and import into your mind-mapping tool.
Real example
Example
Before (input)
Solar System Planets, Mercury, Venus, Earth Moons Asteroids
After (JSON)
{
'name': 'Solar System',
'children': [
{
'name': 'Planets',
'children': [
{ 'name': 'Mercury' },
{ 'name': 'Venus' },
{ 'name': 'Earth' }
]
},
{ 'name': 'Moons' },
{ 'name': 'Asteroids' }
]
}Commas on the Planets line turned it into a branch with three sub-branches.
Technical information
How the details work
Each input line is trimmed and non-empty lines are kept. A line is split on commas or semicolons; a split producing more than one part creates a node with children, otherwise the line becomes a leaf. The tree is capped at fifteen branches and serialized with two-space indentation.
Privacy & security
Your data stays yours
All processing happens locally in your browser. Your outline is never uploaded or stored.
Local processing — files stay in your browser
- JSON generation runs on your device with no network requests.
- Nothing you type is saved after the tab is closed.
- No account or API key is required.
Limitations
What this tool does not do
- Depth is limited to one level of nesting beyond the root (branches and their sub-branches).
- The output targets JSON-based mind map tools; apps with their own format need conversion.
- The tool structures your outline — it does not suggest topics or connections.
Frequently asked questions
Common questions about Mindmap JSON Generator
What format does the output use?
Standard JSON with name and children fields — the common shape used by JSON-importing mind map tools.
How do I create sub-branches?
Separate a branch from its sub-branches with a comma or semicolon on the same line, like Planets, Mercury, Venus, Earth.
Can I make deeper levels?
The generator builds one nesting level below the root. For deeper maps, extend the JSON by hand after copying it.
Is my outline private?
Yes. The conversion runs entirely in your browser and nothing is uploaded.
Where can I use the JSON?
Any mind-mapping or diagram tool that imports JSON — or validate it first with the JSON formatter if you edit it.
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