Diagrams.net (draw.io) is a free, open-source diagram editor for flowcharts, UML, and network diagrams. See features, integrations, and pricing for 2026.
Category
Collaboration
Pricing
Free/Open Source (with paid enterprise add-ons), from Free
Diagrams.net, better known by its long-running name draw.io, is a free, open-source diagramming application for flowcharts, UML, network diagrams, and more, usable in-browser or offline with no account required.
Its technology traces back to the JGraph library started in 2000 by Gaudenz Alder, evolving through Diagramly and draw.io before the product settled on the diagrams.net brand in 2020.
Key Features
The editor offers a drag-and-drop canvas with thousands of shapes covering flowcharts, network diagrams, UML, cloud architecture icons, and more, plus real-time collaborative editing.
It runs entirely client-side in the browser or as a cross-platform desktop app, and integrates with Google Drive, Dropbox, OneDrive, GitHub, Confluence, Jira, and Notion.
Pricing
The core diagrams.net application is completely free to use, with no login required and no artificial feature limits for individuals or teams.
Revenue comes mainly from paid Confluence/Jira Marketplace app listings priced per user per month, plus custom Enterprise pricing for large organizations needing dedicated support.
Key Features
No-login browser editor — Full diagramming functionality at app.diagrams.net without creating an account or signing in.
Cross-platform desktop app — Electron-based desktop application for Windows, macOS, and Linux for fully offline diagramming.
Extensive shape libraries — Thousands of built-in shapes covering flowcharts, UML, network topology, cloud architecture, and BPMN.
Cloud storage integrations — Native integration with Google Drive, Dropbox, OneDrive, GitHub, and GitLab for saving and syncing diagrams.
Real-time collaboration — Multiple users can co-edit the same diagram simultaneously when stored in a connected cloud location.
Confluence and Jira embedding — Native apps let teams embed and edit diagrams directly inside Atlassian Confluence pages and Jira issues.
Client-side architecture — Diagrams are processed locally in the browser rather than sent to a remote server by default, aiding security-sensitive use.
Apache 2.0 licensed core — The underlying source code is open and self-hostable, enabling on-premise deployments for compliance needs.
Pros & Cons
Pros
Completely free for individuals and teams with no feature gating
No account or login required to start diagramming
Extremely broad shape library covering technical and business diagram types
Open-source and self-hostable for security-sensitive organizations
Cons
Interface feels less polished than premium competitors like Lucidchart
Real-time collaboration depends on which cloud storage backend is connected
Enterprise support and SLAs require custom, quote-based pricing
Confluence/Jira integration costs scale with user count for larger teams
Pricing
Free (Web & Desktop) Free N/A
Confluence/Jira Cloud App From ~$1.70/user/month Monthly
Enterprise Custom Annual (quote-based)
Frequently Asked Questions
Is diagrams.net the same as draw.io?
Yes, diagrams.net is the current primary brand name for the tool long known as draw.io; both names are used interchangeably and the software is identical.
Is diagrams.net really free?
Yes, the core web and desktop applications are completely free with no feature limits; the company monetizes through optional paid Confluence/Jira Marketplace apps and custom Enterprise support.
Do I need an account to use diagrams.net?
No, you can use the full editor at app.diagrams.net without signing up, and optionally connect a cloud storage account like Google Drive to save files.
Is diagrams.net open source?
Yes, the core editor is released under the Apache 2.0 license and the source code is available on GitHub under jgraph/drawio.
Can diagrams.net be used offline?
Yes, a desktop app for Windows, macOS, and Linux allows fully offline diagram creation and editing.
What is diagrams.net used for?
It's used to create flowcharts, UML diagrams, network diagrams, floor plans, org charts, mind maps, and cloud architecture diagrams.