Free AI Diagram Generator: Text to Diagram in Seconds

Turn natural language into professional visualization. From complex flowcharts to AWS architectures, create, edit, and export diagrams instantly using Artificial Intelligence—100% free.

Flowchart example
Flowchart
Sequence Diagram example
Sequence Diagram
Class Diagram example
Class Diagram
State Diagram example
State Diagram
Gantt Chart example
Gantt Chart
Mind Map example
Mind Map
Network Diagram example
Network Diagram
ER Diagram example
ER Diagram
UML Diagram example
UML Diagram
Venn Diagram example
Venn Diagram
Sankey Diagram example
Sankey Diagram
AWS Architecture Diagram example
AWS Architecture Diagram

Create Your Diagram

Choose a diagram type to get started

Example of Flowchart
Flowchart
Visualize algorithms, business processes, and decision trees. Transform step-by-step logic into clear, professional flowcharts instantly.
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Example of Sequence Diagram
Sequence Diagram
Model system interactions and API calls. Perfect for developers needing to document message exchanges between objects and entities over time.
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Example of Class Diagram
Class Diagram
Generate object-oriented structure diagrams. Map out classes, attributes, and methods to streamline your software architecture planning.
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Example of State Diagram
State Diagram
Visualize the lifecycle of objects. Define states, transitions, and event triggers to accurately model system behaviors and state machines.
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Example of Gantt Chart
Gantt Chart
Project management made easy. Convert project timelines, tasks, and schedules into visual Gantt charts to track progress and deadlines effectively.
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Example of Mind Map
Mind Map
Brainstorm and organize thoughts. Turn unstructured lists of ideas into structured, hierarchical mind maps for studying or planning.
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Example of Network Diagram
Network Diagram
Map out IT infrastructure. Visualize nodes, connections, and network topologies to document your physical or logical network design.
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Example of ER Diagram
ER Diagram
Design database schemas. Visualize entity relationships, keys, and cardinality to plan robust SQL and NoSQL database structures.
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Example of UML Diagram
UML Diagram
Standardized software modeling. Create comprehensive Unified Modeling Language diagrams for technical documentation and system design.
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Example of Venn Diagram
Venn Diagram
Analyze relationships and overlaps. Create Venn diagrams to visually represent logical relationships between different sets of data.
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Example of Sankey Diagram
Sankey Diagram
Visualize data flow and volume. Perfect for showing energy transfer, budget breakdowns, or material flow through a system.
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Example of AWS Architecture Diagram
AWS Architecture Diagram
Cloud infrastructure visualization. Generate standard diagrams using AWS icons to document your cloud stack, from EC2 instances to S3 buckets.
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How to Generate Diagrams with AI
1

Describe Your Idea

Simply type a description of your process, system, or data into the chat interface. You can paste code snippets, meeting notes, or rough bullet points.

2

AI Processing

Our advanced AI engine analyzes your text and converts it into structured diagramming syntax (such as Mermaid.js or PlantUML).

3

Visualize & Edit

The diagram renders instantly. You can refine the result by chatting with the AI to add steps, change colors, or correct logic.

4

Export & Share

Download your final result in high-quality PNG or SVG formats, or copy the code to use in your own documentation.

The Modern Way to Diagram

Speed & Efficiency

Stop dragging and dropping shapes manually. What used to take hours of formatting now takes seconds of typing.

Standardized Syntax

We use industry-standard code-based diagramming. This means your diagrams are version-controllable and easily editable by developers.

100% Free to Use

Diagram-generator.com is committed to providing accessible tools for everyone. We cover our costs through community support and efficient AI engineering.

Common Questions

AI Diagram Generator | Create Diagrams Online Free