Being pure Python and cross platform, it should work anywhere where
there's Python and a browser. To run apps in desktop-mode, we recommend having Firefox
Flexx has a modular design, consisting of a few subpackages, which can also be used by themselves:
Flexx alternatives and similar packages
Based on the "GUI" category
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You can use Flexx to create (cross platform) desktop applications, web applications, and export an app to a standalone HTML document. It also works in the Jupyter notebook.
Click the image below for an interactive example:
There is a demo server at http://demo.flexx.app .
The primary motivation for Flexx is the undeniable fact that the web (i.e. browser technology) has become an increasingly popular method for delivering applications to users, also for (interactive) scientific content.
The purpose of Flexx is to provide a single application framework to create desktop applications, web apps, and (hopefully someday) mobile apps. By making use of browser technology, the library itself can be relatively small and pure Python, making it widely available and easy to use.
A word of caution
Flexx is very versatile and can be used in different ways. It also makes it easy to mix Python that runs on the server and Python that runs in the browser. This is a powerful feature but this also makes it easy to create code that becomes difficult to maintain. You, the developer, must ensure that Python and PScript code are clearly separated.
Flexx requires Python 3.5+ and also works on pypy. Further, it depends on:
- the Tornado library (pure Python).
- the PScript library (a pure Python flexxui project).
- the Webruntime library (a pure Python flexxui project).
- the Dialite library (a pure Python flexxui project).
To install the latest release (and dependencies), use either of these commands:
pip install flexx
conda install flexx -c conda-forge
Or get the bleeding edge with:
pip install https://github.com/flexxui/flexx/archive/master.zip
Flexx aims to support all modern browsers, including Firefox, Chrome and Edge. Internet Explorer version 10 and up should work, but some things may be flaky.
For running desktop apps, it is needed to have Firefox or NW.js installed.
Flexx makes use of the liberal 2-clause BSD license. See LICENSE for details.
*Note that all licence references and agreements mentioned in the Flexx README section above are relevant to that project's source code only.