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https://github.com/flet-dev/flet

Flet enables developers to easily build realtime web, mobile and desktop apps in Python. No frontend experience required.
https://github.com/flet-dev/flet

android cross-platform desktop flutter ios python server-driven-ui web

Last synced: 6 days ago
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Flet enables developers to easily build realtime web, mobile and desktop apps in Python. No frontend experience required.

Host: GitHub
URL: https://github.com/flet-dev/flet
Owner: flet-dev
License: apache-2.0
Created: 2022-03-24T15:44:12.000Z (almost 3 years ago)
Default Branch: main
Last Pushed: 2024-12-19T23:48:46.000Z (23 days ago)
Last Synced: 2024-12-30T10:16:28.267Z (13 days ago)
Topics: android, cross-platform, desktop, flutter, ios, python, server-driven-ui, web
Language: Python
Homepage: https://flet.dev
Size: 34.2 MB
Stars: 11,941
Watchers: 131
Forks: 468
Open Issues: 380
Metadata Files:
- Readme: README.md
- Changelog: CHANGELOG.md
- Contributing: CONTRIBUTING.md
- License: LICENSE
- Roadmap: docs/roadmap.md

Awesome Lists containing this project

awesome-python-web-frameworks - Flet - Flet enables developers to easily build realtime web, mobile and desktop apps in Python. No frontend experience required. (Front-end frameworks / Dead REST frameworks)
awesomeLibrary - flet - Flet enables developers to easily build realtime web, mobile and desktop apps in Python. No frontend experience required. (语言资源库 / python)

README

        # Flet



[![Build status](https://ci.appveyor.com/api/projects/status/xwablctxslvey576/branch/main?svg=true)](https://ci.appveyor.com/project/flet-dev/flet/branch/main)

Flet is a framework that enables you to easily build real-time web, mobile, and desktop apps in your favorite language and securely share them with your team. No frontend experience is required.

### ⚡From idea to app in minutes

An internal tool or a dashboard for your team, weekend project, data entry form, kiosk app, or high-fidelity prototype - Flet is an ideal framework to quickly hack great-looking interactive apps to serve a group of users.

### 📐 Simple architecture

No more complex architecture with JavaScript frontend, REST API backend, database, cache, etc. With Flet you just write a monolith stateful app in Python only and get multi-user, real-time Single-Page Application (SPA).

### 🔋Batteries included

To start developing with Flet, you just need your favorite IDE or text editor. No SDKs, no thousands of dependencies, no complex tooling - Flet has a built-in web server with assets hosting and desktop clients.

###    Powered by Flutter

Flet UI is built with [Flutter](https://flutter.dev/), so your app looks professional and could be delivered to any platform. Flet simplifies the Flutter model by combining smaller "widgets" to ready-to-use "controls" with an imperative programming model.

### 🌐 Speaks your language

Flet is language-agnostic, so anyone on your team could develop Flet apps in their favorite language. [Python](https://flet.dev/docs/guides/python/getting-started) is already supported, Go, C# and others are [coming next](https://flet.dev/roadmap).

### 📱 Deliver to any device

Deploy Flet app as a web app and view it in a browser. Package it as a standalone desktop app for Windows, macOS, and Linux. Install it on mobile as [PWA](https://web.dev/what-are-pwas/) or view via Flet app for iOS and Android.

## Flet app example

At the moment you can write Flet apps in Python and other languages will be added soon.

Here is a sample "Counter" app:

```python title="counter.py"

import flet

from flet import IconButton, Page, Row, TextField, icons

def main(page: Page):

    page.title = "Flet counter example"

    page.vertical_alignment = "center"

    txt_number = TextField(value="0", text_align="right", width=100)

    def minus_click(e):

        txt_number.value = str(int(txt_number.value) - 1)

        page.update()

    def plus_click(e):

        txt_number.value = str(int(txt_number.value) + 1)

        page.update()

    page.add(

        Row(

            [

                IconButton(icons.REMOVE, on_click=minus_click),

                txt_number,

                IconButton(icons.ADD, on_click=plus_click),

            ],

            alignment="center",

        )

    )

flet.app(target=main)

```

To run the app install `flet` module:

```bash

pip install flet

```

and run the program:

```bash

python counter.py

```

The app will be started in a native OS window - what a nice alternative to Electron!



Now, if you want to run the app as a web app, just replace the last line with:

```python

flet.app(target=main, view=flet.AppView.WEB_BROWSER)

```

run again and now you instantly get a web app:



## Getting started

* [Creating Flet apps in Python](https://flet.dev/docs/guides/python/getting-started)

* [Controls reference](https://flet.dev/docs/controls)

## Sample apps in Python

* [Greeter](https://github.com/flet-dev/examples/blob/main/python/apps/greeter/greeter.py) ([Online Demo](https://gallery.flet.dev/greeter/))

* [Counter](https://github.com/flet-dev/examples/blob/main/python/apps/counter/counter.py) ([Online Demo](https://gallery.flet.dev/counter/))

* [To-Do](https://github.com/flet-dev/examples/blob/main/python/apps/todo/todo.py) ([Online Demo](https://gallery.flet.dev/todo/))

* [Icons Browser](https://github.com/flet-dev/examples/blob/main/python/apps/icons-browser/main.py) ([Online Demo](https://gallery.flet.dev/icons-browser/))

More demo applications can be found in the [gallery](https://flet.dev/gallery/).

## Community

* [Discussions](https://github.com/flet-dev/flet/discussions)

* [Discord](https://discord.gg/dzWXP8SHG8)

* [Twitter](https://twitter.com/fletdev)

* [Email](mailto:[email protected])

## Contribute to this wonderful project

* Read the CONTRIBUTING.md file