Best Uml Diagrams Apps

Visual drag-and-drop editorPlantUML and Mermaid import/exportSix relationship types

Create professional UML class diagrams visually or with code. Supports PlantUML and Mermaid syntax, offering a drag-and-drop interface with auto-layout. Export diagrams in high-resolution formats and sync seamlessly across Apple devices.

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Diagram - Flowchart - Mind Map

Diagrams Notepad 3

Cross-device sync via iCloudVector-based shapes and connectorsApple Pencil support

$22.99 | 100% OFF

Create and sync diagrams, flowcharts, and mind maps across iPhone, iPad, and Mac. Supports Apple Pencil for drawing and offers collaboration features. Export in various formats.

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Grapholite Diagrams Maker

FlowChart & Infographics

Flow chart creationFloor plan designNetwork layout diagrams

Create a wide range of business graphics and technical drawings, from simple sketches to professional documents. Features include freehand drawing recognition, extensive stencil libraries, and advanced connection routing. Export to various formats like PDF, PNG, SVG, and Visio.

💼 Business

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UMLite

Plant-UML

Line-numbered editorLive PlantUML renderingAnimated previews

Quickly create, view, and share UML diagrams on your mobile device. Features a line-numbered editor for efficient diagramming and live previews to see your designs instantly. Export your creations and customize their appearance with various themes.

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free

DrawExpress Diagram Lite

by DrawExpress Inc

Gesture-based diagrammingFlowchart creationUML diagramming

Create diagrams and flowcharts quickly and intuitively using simple gestures. Ideal for software design, business, and academic needs, it offers a pen-and-paper like experience for various diagram types.

Generate, Fix & Edit Diagrams

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free

PrivyMermaid: AI Diagram

100% Private & Offline diagram editingInstant offline diagram renderingNo cloud sync for enhanced data privacy

This privacy-focused editor allows developers and technical writers to create, edit, and preview diagrams completely offline. Your sensitive data remains on your device, ensuring maximum security and control over your diagrams.

Editor for Visio Diagrams

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free

Open & Edit Visio .vsdx Files

Simple Sequence Diagram AI

🎨 Graphics & Design

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AI Sequence Diagram Creator

Create diagrams and flowcharts intuitively using simple gestures, similar to drawing with pen and paper. This app supports various diagram types for software design, business, and education. Export your creations in multiple formats.

Gesture-based drawingDiagram and flowchart creationSupports UML, BPMN, Mind Maps

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Flowchart & Diagram Maker

Lucidchart

Create and edit diagramsPre-built templatesDrag-and-drop functionality

Create and view diagrams like flowcharts, mind maps, and org charts on your mobile device. This visual workspace facilitates real-time collaboration and data visualization. Diagrams sync instantly to your account and can be exported in various formats.

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Lekh: whiteboard & diagramming

Diagram & Flowchart Maker

Infinite canvas for drawingSmart diagram and flowchart creationLayout and inspection report drawing

This app provides an infinite canvas for freehand drawing and creating various diagrams. It intelligently converts sketches into precise shapes and connections, supporting a wide range of diagram types for business, design, and planning.

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Mermaid Editor - MMChart Live

Markdown, flowchart, diagram

Real-time live previewFull syntax highlightingSupport for all chart types

Create and visualize complex diagrams on your mobile device with a powerful editor. Supports real-time previews, syntax highlighting, and a wide range of chart types. Export your work in various formats and manage files locally.

MarkChart - Mermaid Editor

Mermaid diagrams

Mermaid diagram editingReal-time previewBuilt-in templates

This app allows you to easily create and preview diagrams using a Markdown-inspired text syntax. It offers templates for various diagram types and supports automatic updates when used with external editors. Export your creations to common image formats.

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Flowchart Creator

Create flowcharts

Diverse flowchart elementsCustomizable text and elementsAdjustable connection styles

Easily visualize ideas, processes, and workflows with a powerful diagramming tool. Customize shapes, text, and connections to create clear and visually appealing flowcharts for any project. Perfect for students and professionals alike.

Flowchart&diagram editing tool

Visual graph creationDirected and undirected graphsAutomatic layout using dot

Create and edit complex graph structures visually. This tool simplifies the process of drawing networks with nodes and edges, offering customization options for appearance and layout. Export your diagrams in multiple popular formats.

🎨 Graphics & Design

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freemium

EdrawMax - AI Diagram Maker

Drawing Struct, Org, Flowchart

Photo to editable diagram conversionAI-powered diagram generation40,000+ templates and 17,000+ symbols

This AI-powered diagramming tool transforms your ideas into professional visuals effortlessly. Create flowcharts, org charts, mind maps, and more with extensive templates and smart AI assistance. Collaborate seamlessly and export to various formats.

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