NiceGUI

NiceGUI is an easy-to-use, Python-based UI framework, which shows up in your web browser. You can create buttons, dialogs, Markdown, 3D scenes, plots and much more.

It is great for micro web apps, dashboards, robotics projects, smart home solutions and similar use cases. You can also use it in development, for example when tweaking/configuring a machine learning algorithm or tuning motor controllers.

NiceGUI is available as PyPI package, Docker image and on conda-forge as well as GitHub.

Features

browser-based graphical user interface
implicit reload on code change
acts as webserver (accessed by the browser) or in native mode (eg. desktop window)
standard GUI elements like label, button, checkbox, switch, slider, input, file upload, ...
simple grouping with rows, columns, cards and dialogs
general-purpose HTML and Markdown elements
powerful high-level elements to
- plot graphs and charts,
- render 3D scenes,
- get steering events via virtual joysticks
- annotate and overlay images
- interact with tables
- navigate foldable tree structures
- embed video and audio files
built-in timer to refresh data in intervals (even every 10 ms)
straight-forward data binding and refreshable functions to write even less code
notifications, dialogs and menus to provide state of the art user interaction
shared and individual web pages
easy-to-use per-user and general persistence
ability to add custom routes and data responses
capture keyboard input for global shortcuts etc.
customize look by defining primary, secondary and accent colors
live-cycle events and session data
runs in Jupyter Notebooks and allows Python's interactive mode
auto-complete support for Tailwind CSS
SVG, Base64 and emoji favicon support
testing framework based on pytest

Installation

python3 -m pip install nicegui

Usage

Write your nice GUI in a file main.py:

from nicegui import ui

ui.label('Hello NiceGUI!')
ui.button('BUTTON', on_click=lambda: ui.notify('button was pressed'))

ui.run()

Launch it with:

python3 main.py

The GUI is now available through http://localhost:8080/ in your browser. Note: NiceGUI will automatically reload the page when you modify the code.

Documentation and Examples

The documentation is hosted at https://nicegui.io/documentation and provides plenty of live demos. The whole content of https://nicegui.io is implemented with NiceGUI itself.

You may also have a look at our in-depth examples of what you can do with NiceGUI. In our wiki we have a list of great NiceGUI projects from the community, a section with Tutorials, a growing list of FAQs and some strategies for using ChatGPT / LLMs to get help about NiceGUI.

Why?

We at Zauberzeug like Streamlit but find it does too much magic when it comes to state handling. In search for an alternative nice library to write simple graphical user interfaces in Python we discovered JustPy. Although we liked the approach, it is too "low-level HTML" for our daily usage. But it inspired us to use Vue and Quasar for the frontend.

We have built on top of FastAPI, which itself is based on the ASGI framework Starlette and the ASGI webserver Uvicorn because of their great performance and ease of use.

Sponsors

Maintenance of this project is made possible by all the contributors and sponsors. If you would like to support this project and have your avatar or company logo appear below, please sponsor us. 💖

Consider this low-barrier form of contribution yourself. Your support is much appreciated.

Contributing

Thank you for your interest in contributing to NiceGUI! We are thrilled to have you on board and appreciate your efforts to make this project even better.

As a growing open-source project, we understand that it takes a community effort to achieve our goals. That's why we welcome all kinds of contributions, no matter how small or big they are. Whether it's adding new features, fixing bugs, improving documentation, or suggesting new ideas, we believe that every contribution counts and adds value to our project.

We have provided a detailed guide on how to contribute to NiceGUI in our CONTRIBUTING.md file. We encourage you to read it carefully before making any contributions to ensure that your work aligns with the project's goals and standards.

If you have any questions or need help with anything, please don't hesitate to reach out to us. We are always here to support and guide you through the contribution process.

Included Web Dependencies

See DEPENDENCIES.md for a list of web frameworks NiceGUI depends on.

License

backbord/nicegui

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