Free Component Diagram Software

Draw Component Diagrams and other UML diagrams with a free, online diagram tool

Want to draw UML component diagram online for free?

Visual Paradigm Online Free Edition is a free online diagramming software that offers a wide range of UML diagramming tools for both basic and advanced usage. The UML component diagram editor comes with an intuitive editor that lets you create professional system design blueprints quickly and effortlessly. Need help? Hundreds of UML diagram templates and examples are there to help you get started in quick. Because VP Online is a web-based diagramming tool, it works in all operating systems and is compatible with all browsers.

Free Component Diagram Software
Make a Component Diagram

Professional component diagram starts here

Absolutely Free

Create as many UML diagrams as you like. Output your work as images (PNG/JPG/GIF/SVG) or PDF. Enjoy!

  • Unlimited number of diagrams and shapes
  • Unlimited period of access
  • No ads.

Draw Easily and Smartly

Easy-to-use online component diagram tool that features:

  • Drag and drop shape creation
  • Auto adjusted connectors when moving shape
  • Click to replicate shape format
  • Reuse shapes from diagram to diagram
  • Hundreds of examples and templates

Better Results

A full set of diagram editing features is available for you to draw the diagram you need.

  • Alignment guide for precise positioning
  • Include images, URLs and text in diagrams
  • Formatting options for shapes and lines
  • Rotate shapes and text
  • Group, align and distribute shapes
  • Auto. create shape from text list

Key features and benefits

Key features and benefits
  • Unlimited period of access
  • Unlimited number of diagrams
  • Unlimited number of shapes
  • UML, ERD, Org Chart, Floor Plan Maker, Business Concept Diagram, ITIL
  • Can be upgraded to paid editions for more diagram types and features
  • Multi-platform support: Windows, Mac, Linux. Also compatible with all web browsers
  • Easy to use: Create and connect shapes with drag and drop. Connectors will snap to shapes and never separate apart.
  • Apply different formatting options (shape and lines, solid and gradient paint), 40+ connector types, RTF caption, font options, shadow effect, etc
  • Draw your own diagrams with your own shapes.
  • Visio drawing and stencil import
  • Easily embed text, external images and web links to diagram
  • Print, export and share your work in different formats (PNG, JPG, SVG, GIF, PDF)
  • Get start quickly with hundreds of diagram examples and diagram templates
  • Google Drive Integration

But don't take our word for it

Try it yourself. Just browse the Component Diagram examples below and click Open Diagram to open and edit. You will see for yourself that it is everything we say it is, or perhaps more.

Component Diagram Example: Ticket Selling System

Open Diagram

Component Diagram Example: Ticket Selling SystemOpen Diagram

Component Diagram Example: Web Store

Open Diagram

Component Diagram Example: Web StoreOpen Diagram

Component Diagram Example: Securities Trading

Open Diagram

Component Diagram Example: Securities TradingOpen Diagram

Component Diagram Example: Store Component

Open Diagram

Component Diagram Example: Store ComponentOpen Diagram

Component Diagram Example: Order Processing System

Open Diagram

Component Diagram Example: Order Processing SystemOpen Diagram

Other Solutions

Start Drawing Your Free Diagram Today

No limitations, no obligations, no cancellation fees.


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