draw.io is a flexible diagramming application that combines a large collection of shapes and templates with online, desktop, cloud storage, and self-hosted deployment options. It can be used by casual users creating a basic flowchart as well as system administrators documenting complex networks and application architectures.
One of the platform’s greatest advantages is that its primary online and desktop editors are free to use. Users are not required to create an account, and diagrams can be stored locally or in an existing cloud storage platform instead of being locked inside a proprietary service.
The product is commonly known as draw.io, while its free online editor is available through the diagrams.net domain. Both names refer to the same diagramming platform.
In this blog post, we will review draw.io, examine its most useful features, and determine whether it is the right diagramming platform for your needs.
- What Is draw.io?
- The draw.io Interface
- Creating a New Diagram
- Shape Libraries
- Connecting Shapes
- Formatting Diagrams
- Working with Layers
- Multiple Pages
- Storage Options
- Desktop Application
- Privacy and Security
- Collaboration
- Confluence and Jira Integration
- Google Drive and Microsoft OneDrive
- GitHub and GitLab Integration
- Importing Existing Diagrams
- Export Formats
- Mermaid Support
- SQL Diagram Generation
- AI Diagram Generation
- Whiteboarding
- Keyboard Shortcuts
- Performance
- Ease of Use
- Advantages
- Disadvantages
- draw.io Versus Microsoft Visio
- draw.io Versus Lucidchart
- draw.io Versus Excalidraw
- Best Use Cases
- Who May Prefer Another Platform?
- Pricing
- Final Verdict
- Conclusion
- Additional Resources
What Is draw.io?
draw.io is an open-source diagramming and whiteboarding application for creating visual representations of systems, processes, relationships, and ideas.
It can be used to create:
- Flowcharts
- Network diagrams
- Cloud architecture diagrams
- Organizational charts
- Unified Modeling Language diagrams
- Entity relationship diagrams
- Business process diagrams
- Floor plans
- Mind maps
- Decision trees
- Infrastructure diagrams
- Software architecture diagrams
- Project workflows
- Wireframes
- Electrical diagrams
The editor is available in several forms:
- A free browser-based application
- A free desktop application
- Integrations for Confluence and Jira
- Cloud storage integrations
- Third-party application integrations
- A self-hosted deployment option
The online editor is available through diagrams.net, while general product information and documentation are available from the draw.io website.
The draw.io Interface
The draw.io interface uses a traditional diagramming layout.
The primary areas include:
- Shape libraries on the left
- The drawing canvas in the center
- Formatting and diagram options on the right
- Menus and editing controls across the top
Creating a basic diagram typically involves dragging shapes from the shape library onto the canvas and connecting them with arrows or lines.
The interface provides tools for:
- Aligning shapes
- Distributing objects evenly
- Grouping objects
- Rotating elements
- Changing colors
- Applying borders
- Adding labels
- Adjusting connector paths
- Managing layers
- Locking diagram elements
- Rearranging objects
The number of available controls can initially make the interface appear busy. However, users familiar with applications such as Microsoft Visio, Lucidchart, or other graphical editors should become comfortable with it relatively quickly.
Creating a New Diagram
When starting a new diagram, draw.io provides the option to begin with a blank canvas or select a template.
The template library includes examples for categories such as:
- Basic diagrams
- Flowcharts
- Business processes
- Engineering
- Networking
- Cloud architecture
- Software development
- Project management
- Maps
- Floor plans
- Organizational charts
- Mind maps
Templates can significantly reduce the amount of time required to create a professional diagram.
Organizations can also create custom templates containing:
- Approved colors
- Company logos
- Standard fonts
- Watermarks
- Reusable layouts
- Common infrastructure components
Custom templates can help teams maintain a consistent appearance across technical and business documentation.
Shape Libraries
One of draw.io’s strongest features is its extensive collection of built-in shapes.
Available libraries include shapes for:
- General diagrams
- Flowcharts
- Networking
- Cisco equipment
- Amazon Web Services
- Microsoft Azure
- Google Cloud
- Kubernetes
- Unified Modeling Language
- Business processes
- Entity relationships
- Electrical systems
- Floor plans
- Mockups
- Infographics
Additional libraries can be enabled by selecting More Shapes at the bottom of the shapes panel.
Users can also:
- Import custom shape libraries.
- Create reusable custom shapes.
- Add images to diagrams.
- Use icons from public libraries.
- Store commonly used objects in the scratchpad.
- Share custom libraries with other users.
The large number of available technical shapes makes draw.io particularly useful for system administrators, network engineers, cloud architects, and software developers.
Connecting Shapes
Connectors represent relationships or the flow between objects.
draw.io supports:
- Straight connectors
- Curved connectors
- Orthogonal connectors
- Elbow connectors
- Bidirectional arrows
- Custom line endings
- Labeled connectors
- Manually positioned waypoints
Connectors remain attached when shapes are moved, which makes it easier to reorganize a diagram without rebuilding every relationship.
The editor also includes automatic layout and routing tools. These can help arrange complex diagrams, although manual adjustments may still be needed when a diagram contains many objects or crossing connectors.
Formatting Diagrams
The formatting panel can be used to customize individual objects or an entire diagram.
Formatting options include:
- Fill colors
- Gradient colors
- Border styles
- Line thickness
- Opacity
- Shadows
- Rounded corners
- Font styles
- Font sizes
- Text alignment
- Spacing
- Connector styles
- Page backgrounds
Styles can be copied from one object and applied to another.
Users can also define reusable styles or duplicate existing objects to maintain consistency throughout a diagram.
The formatting options are extensive enough to create professional diagrams, although achieving a polished result may require more manual work than some heavily automated design platforms.
Working with Layers
draw.io supports layers for organizing complex diagrams.
Layers can be used to:
- Separate logical and physical network views.
- Show different stages of a process.
- Organize application components.
- Hide supporting information.
- Compare current and proposed environments.
- Separate annotations from the primary diagram.
- Create multiple views within one file.
Each layer can be:
- Shown
- Hidden
- Locked
- Renamed
- Reordered
- Duplicated
Layers are especially helpful when a single diagram contains several categories of information that do not need to be displayed simultaneously.
Multiple Pages
A single draw.io file can contain multiple pages.
For example, a network documentation file could include separate pages for:
- High-level architecture
- Physical network layout
- Virtual servers
- Firewall rules
- Cloud resources
- Disaster recovery
- Data flow
Pages can be renamed, duplicated, reordered, or removed.
This allows an entire set of related diagrams to be stored inside one .drawio file instead of maintaining a large number of unrelated files.
Storage Options
Unlike many software-as-a-service diagramming platforms, draw.io does not require diagrams to be stored on the vendor’s servers.
Diagrams can be stored in locations such as:
- A local computer
- Browser storage
- Google Drive
- Microsoft OneDrive
- Dropbox
- Nextcloud
- GitHub
- GitLab
- Atlassian Confluence
- Atlassian Jira
This bring-your-own-storage model gives users greater control over where their data resides.
For organizations with strict security requirements, diagrams can be created with the desktop application and stored entirely within the organization’s existing file system.
More information is available in the draw.io storage and security documentation.
Desktop Application
The draw.io desktop application is available for:
- Windows
- macOS
- Linux
The desktop edition can be used without an Internet connection.
This makes it useful for:
- Restricted environments
- Isolated networks
- Sensitive infrastructure documentation
- Travel without reliable connectivity
- Organizations that prohibit browser-based cloud applications
The desktop application uses the same core editor as the online edition, so the experience is generally consistent between the two versions.
Because it is based on Electron, the desktop application may use more memory than a completely native desktop tool. However, the resource requirements are generally reasonable for normal diagramming workloads.
The desktop application can be downloaded from the official draw.io desktop repository.
Privacy and Security
Privacy is one of draw.io’s strongest differentiators.
The free online editor does not require an account, and diagram files can remain on the user’s device or in a user-selected storage platform.
This approach provides several benefits:
- No mandatory vendor-hosted diagram repository
- No required draw.io account
- Local file storage
- Offline editing
- Self-hosting options
- Existing cloud storage permissions
- Greater control over data retention
Users should still evaluate the security policies of whichever storage provider they select.
AI-powered diagram generation also requires additional consideration because text prompts are submitted to an external model. Organizations handling sensitive information may choose to disable AI functionality or use the completely offline desktop application.
The draw.io security documentation provides additional information about its security-first design.
Collaboration
Collaboration depends heavily on where a diagram is stored.
When diagrams are saved in supported platforms such as Google Drive, Microsoft OneDrive, Nextcloud, Confluence, or Jira, users may be able to:
- Share diagrams
- Control file permissions
- Review version history
- Edit diagrams with other team members
- Collaborate in real time
- Embed diagrams in documentation
- Restore previous versions
The exact collaboration features depend on the selected storage provider or integration.
draw.io does not attempt to replace the permission and sharing systems already provided by those platforms. Instead, it relies on the underlying platform to control access.
This is useful for organizations that already manage access through Microsoft 365, Google Workspace, Nextcloud, or Atlassian products.
Confluence and Jira Integration
draw.io provides dedicated integrations for Atlassian Confluence and Jira.
The Confluence integration allows teams to:
- Create diagrams directly on Confluence pages.
- Edit diagrams without leaving Confluence.
- Embed diagrams into documentation.
- Use revision history.
- Collaborate with other users.
- Create whiteboards.
- Import diagrams from other platforms.
- Maintain diagrams alongside technical procedures.
The Jira integration allows diagrams to be added to issues for:
- Workflow documentation
- Application designs
- Network changes
- Troubleshooting
- Project planning
- Software architecture
- Incident reviews
These integrations are especially useful for IT and development teams that already use Atlassian products.
Unlike the general online and desktop editors, the official Atlassian integrations are commercially licensed. Pricing depends on the Atlassian deployment type and number of users.
More information is available from the draw.io integrations documentation.
Google Drive and Microsoft OneDrive
draw.io can open and save files directly through Google Drive and Microsoft OneDrive.
Benefits include:
- Centralized file storage
- Existing access controls
- File sharing
- Version history
- Team collaboration
- Cross-device access
Users can retain ownership of the diagram files while using draw.io as the editing interface.
This is an important distinction from diagramming services that store all editable content inside their own proprietary accounts.
GitHub and GitLab Integration
Developers and infrastructure teams can store draw.io files in GitHub or GitLab repositories.
This supports workflows involving:
- Version control
- Change reviews
- Documentation repositories
- Infrastructure as code
- Architecture decision records
- Automated publishing
- Team collaboration
Because .drawio files use an XML-based format, the source can be tracked in Git.
However, complex XML changes may not always be easy to review through a standard text-based comparison. Exporting an image alongside the editable file can make diagram changes easier to evaluate during code reviews.
Importing Existing Diagrams
draw.io supports importing several diagram and image formats.
Supported imports include:
.drawio.xml- Microsoft Visio
.vsdx - Gliffy diagrams
- Lucidchart diagrams
- PNG images
- JPEG images
- SVG images
The editor can also generate diagrams from structured text and data such as:
- Mermaid
- SQL
- CSV
- Plain text
Import results may vary depending on the complexity and features used in the original application. Highly customized Visio, Lucidchart, or Gliffy diagrams may require cleanup after conversion.
The complete list is available in the draw.io import format documentation.
Export Formats
Diagrams can be exported to several common formats.
Available options include:
- PNG
- JPEG
- WebP
- SVG
- HTML
- XML
- Animated GIF
- URL
- JSON
The editable diagram data can also be embedded into certain exported PNG and SVG files.
This allows an exported image to be reopened in draw.io for additional editing, provided the diagram data was included during export.
This feature is useful when distributing an image while preserving the ability to modify the original diagram later.
More information is available in the draw.io export documentation.
Mermaid Support
draw.io supports creating diagrams from Mermaid syntax.
Mermaid is a text-based diagramming language commonly used in:
- Markdown documents
- Git repositories
- Development documentation
- Architecture documentation
- Automated workflows
Users can insert Mermaid syntax and convert it into a visual diagram.
This provides a useful bridge between diagram-as-code workflows and traditional visual editing. After the diagram is inserted, its elements can be adjusted using the draw.io interface.
Mermaid support is particularly valuable for developers who want the speed of text-based diagram creation with the flexibility of a graphical editor.
SQL Diagram Generation
draw.io can use SQL table definitions to generate entity relationship diagrams.
This can help database administrators and developers visualize:
- Tables
- Columns
- Primary keys
- Foreign keys
- Relationships
- Database structure
The generated diagram can then be rearranged, styled, and documented using the standard editor.
This feature does not replace a full database modeling platform, but it is useful for quickly creating database documentation.
AI Diagram Generation
Recent versions of draw.io include AI-assisted diagram generation.
Users can describe a diagram using natural language, and the generated result is returned as an editable draw.io diagram rather than a static image.
Potential uses include:
- Generating an initial flowchart
- Creating architecture drafts
- Building process diagrams
- Producing brainstorming layouts
- Modifying an existing diagram
- Converting written requirements into visuals
The generated result should be treated as a starting point. Users should verify:
- Technical accuracy
- Missing components
- Incorrect relationships
- Security boundaries
- Product names
- Network paths
- Process logic
AI generation is enabled by default in the free online editor but may be disabled or require administrator configuration in other deployments.
Organizations concerned about sensitive data can disable the feature or use the offline desktop application.
Whiteboarding
draw.io can also function as a digital whiteboard.
Whiteboarding features can be useful for:
- Brainstorming
- Team meetings
- Early design discussions
- Project planning
- Process discovery
- Architecture workshops
- Remote collaboration
The whiteboard experience is not as specialized as a platform built exclusively for workshops and collaborative brainstorming. However, it is useful for teams that want whiteboarding and formal diagramming in the same application.
Keyboard Shortcuts
Keyboard shortcuts can significantly improve productivity in draw.io.
Common shortcuts include:
- Ctrl+C to copy
- Ctrl+V to paste
- Ctrl+D to duplicate
- Ctrl+G to group
- Ctrl+Shift+U to ungroup
- Ctrl+Z to undo
- Ctrl+Y to redo
- Ctrl+A to select all
- Delete to remove selected objects
- Ctrl+Shift+K to show or hide the shapes panel
Keyboard shortcuts may differ slightly depending on the operating system and application version.
Users who frequently create large diagrams will benefit from learning shortcuts for alignment, duplication, grouping, and movement.
Performance
draw.io performs well for small and moderately complex diagrams.
The editor generally remains responsive when working with:
- Flowcharts
- Network diagrams
- Organizational charts
- Cloud architectures
- Process maps
- Database diagrams
Performance can decline when a diagram contains:
- Hundreds or thousands of objects
- Large embedded images
- Numerous layers
- Complex connector routing
- Large custom shape libraries
- Extensive styling
- Multiple detailed pages
For very large projects, separating the design into multiple pages or files may improve performance and readability.
Ease of Use
Basic diagram creation is straightforward.
A new user can usually create a simple flowchart by:
- Selecting a template.
- Dragging shapes onto the canvas.
- Connecting the shapes.
- Adding text labels.
- Applying colors and styles.
- Exporting the completed diagram.
Advanced features require more time to learn.
These include:
- Custom styles
- Data-driven diagrams
- Layers
- Custom libraries
- Advanced connector routing
- Self-hosting
- Editor configuration
- Automated diagram generation
The platform is easy to begin using but offers enough depth for experienced technical users.
Advantages
draw.io provides several significant advantages:
- Free online editor
- Free desktop application
- Open-source codebase
- No mandatory account
- Offline editing
- Local file storage
- Self-hosting support
- Extensive shape libraries
- Strong network and cloud diagramming
- Large template collection
- Layers and multiple pages
- Visio import support
- Mermaid support
- AI-assisted diagram generation
- Google Drive integration
- Microsoft OneDrive integration
- Nextcloud integration
- GitHub and GitLab integration
- Confluence and Jira applications
- Multiple export formats
- Editable diagram data in exported images
Few free diagramming tools provide the same combination of features, storage flexibility, privacy, and platform support.
Disadvantages
Despite its strengths, draw.io has several limitations:
- The interface can feel crowded.
- Advanced formatting may require manual work.
- Connector routing can become difficult in complex diagrams.
- Automatic layouts do not always produce ideal results.
- Large diagrams may become slow.
- Imported diagrams may require cleanup.
- Real-time collaboration depends on the storage platform.
- XML changes are difficult to review in Git.
- The desktop application uses Electron.
- Atlassian integrations require paid licenses.
- AI-generated diagrams still require manual verification.
- Specialized design platforms may provide more polished visual templates.
The platform prioritizes flexibility and control over highly guided design automation.
draw.io Versus Microsoft Visio
Microsoft Visio remains a powerful choice for organizations heavily invested in Microsoft 365 and enterprise process modeling.
Visio may be preferable when an organization requires:
- Advanced Microsoft integration
- Formal process modeling
- Data-connected diagrams
- Existing Visio templates
- Enterprise support
- Complex Visio-specific functionality
draw.io may be preferable when users want:
- A free application
- Cross-platform support
- Local or cloud-independent storage
- A Linux desktop application
- Open-source software
- Easy web access
- GitHub or GitLab integration
- No mandatory account
draw.io can import Visio .vsdx files, but highly complex diagrams may not convert perfectly.
draw.io Versus Lucidchart
Lucidchart emphasizes cloud collaboration, polished templates, and a guided software-as-a-service experience.
Lucidchart may provide a smoother experience for organizations that prioritize:
- Centralized cloud management
- Real-time collaboration
- Presentation-quality templates
- Automated workflows
- Enterprise account administration
draw.io is often the better choice when users prioritize:
- Free access
- Offline use
- Local storage
- Open-source software
- Self-hosting
- Storage independence
- Technical diagramming
- Atlassian integration
The best choice depends on whether the organization values hosted collaboration or control over storage and deployment.
draw.io Versus Excalidraw
Excalidraw focuses on informal, hand-drawn-style diagrams and collaborative whiteboarding.
Excalidraw is particularly useful for:
- Quick sketches
- Brainstorming
- Informal architecture discussions
- Hand-drawn visuals
- Collaborative whiteboards
draw.io is generally better for:
- Formal network diagrams
- Detailed infrastructure documentation
- Flowcharts
- Cloud architectures
- Database diagrams
- Multi-page documentation
- Precise object alignment
- Extensive shape libraries
Both tools are useful, but they serve different visual styles and documentation needs.
Best Use Cases
draw.io is particularly well suited for:
- Network administrators
- System administrators
- Cloud architects
- DevOps engineers
- Software developers
- Database administrators
- Project managers
- Business analysts
- Technical writers
- Students
- Educators
- Small businesses
- Enterprise documentation teams
It is especially valuable when diagrams must remain editable without requiring every recipient to purchase a software license.
Who May Prefer Another Platform?
Another diagramming platform may be more appropriate for users who require:
- Advanced data-connected diagrams
- Highly polished marketing graphics
- Specialized engineering calculations
- Complex Building Information Modeling
- Dedicated user experience design tools
- Advanced enterprise workflow automation
- A fully managed collaboration workspace
- Formal business process compliance tooling
draw.io is a general-purpose diagramming platform rather than a replacement for every specialized design or engineering application.
Pricing
The primary draw.io online editor is free.
The desktop application is also free and distributed under the Apache 2.0 license.
Costs may apply when using:
- draw.io for Confluence Cloud
- draw.io for Confluence Data Center
- draw.io for Jira Cloud
- draw.io for Jira Data Center
- Commercial support
- Specialized enterprise integrations
Atlassian application pricing is normally based on the deployment type and number of licensed users.
Current licensing information is available from the draw.io pricing page.
Final Verdict
Rating: 9.5/10
draw.io is one of the best general-purpose diagramming applications available. It provides an exceptional combination of flexibility, technical features, storage control, platform support, and value.
Its extensive shape libraries make it particularly strong for network, cloud, software, and infrastructure diagrams. The free online and desktop applications are capable enough for most individuals and organizations, while Confluence and Jira integrations extend the platform into enterprise documentation workflows.
The interface can become difficult to manage when working with extremely complex diagrams, and some users may prefer the guided design experience offered by commercial competitors. However, these limitations are relatively minor compared to the platform’s overall capabilities.
For system administrators, network engineers, developers, students, and business users who need a powerful diagramming application without a recurring subscription, draw.io is an outstanding choice.
Conclusion
draw.io delivers a professional diagramming experience without requiring users to create an account, subscribe to a paid service, or store files on a vendor-controlled platform.
It supports everything from basic flowcharts to detailed network and cloud architecture diagrams. Features such as custom shape libraries, layers, multiple pages, Visio imports, Mermaid support, AI generation, offline editing, and cloud integrations make it suitable for both simple and advanced workflows.
Although some specialized products offer stronger collaboration or design automation, draw.io remains one of the most capable and cost-effective diagramming tools available.
