Monthly Downloads: 0
Programming language: JavaScript
License: Apache License 2.0
Tags: Note-taking & Editors    
Latest version: v13.11.0

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Build Status


diagrams.net, previously draw.io, is an online diagramming web site that delivers the source in this project.


The source code in this repo is licensed under the Apache v2.

The JGraph provided icons and diagram templates are licensed under the CC BY 4.0. Additional terms may also apply where the icons are originally defined by a third-party copyright holder. We have checked in all cases that the original license allows use in this project.

Additional minified JavaScript files and Java libraries are used in this project. All of the licenses are deemed compatible with the Apache 2.0, nothing is GPL or AGPL.


A development guide is being started on the GitHub project wiki. There is a draw.io tag on Stack Overflow currently, please make sure any questions adhere to their guidelines for questions.

The mxGraph documentation provides a lot of the docs for the bottom part of the stack. There is an mxgraph tag on SO.


One way to run diagrams.net is to fork this project, publish the master branch to GitHub pages and the pages sites will have the full editor functionality (sans the integrations).

Another way is to use the recommended Docker project or to download draw.io Desktop.

The full packaged .war of the client and servlets is built when the project is tagged and available on the releases page.

Supported Browsers

diagrams.net supports IE 11, Chrome 70+, Firefox 70+, Safari 11+, Opera 50+, Native Android browser 7x+, the default browser in the current and previous major iOS versions (e.g. 11.2.x and 10.3.x) and Edge 79+.

Open-source, not open-contribution

Similar to SQLite, diagrams.net is open source but closed to contributions.

The level of complexity of this project means that even simple changes can break a lot of other moving parts. The amount of testing required is far more than it first seems. If we were to receive a PR, we'd have to basically throw it away and write it how we want it to be implemented.

We are grateful for community involvement, bug reports, & feature requests. We do not wish to come off as anything but welcoming, however, we've made the decision to keep this project closed to contributions for the long term viability of the project.

*Note that all licence references and agreements mentioned in the draw.io README section above are relevant to that project's source code only.