# flet-dev/flet

Build realtime web, mobile and desktop apps in Python only. No frontend experience required.

Repository: https://github.com/flet-dev/flet
Canonical: https://ross.abutalabs.com/products/flet
Homepage: https://flet.dev
Language: Python
License: Apache-2.0
License Family: permissive
Topics: android, flutter, ios, python, server-driven-ui, web, cross-platform, desktop
Last push: 2026-08-27T00:20:56+00:00

## Health v2 (maintenance only)
Score: 98/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 99, release rhythm 95, longevity 100
- inputs: {"age_days": 1623, "days_push": 7, "days_rel": 32, "gap_med": 6.0, "n_releases_24m": 37}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 16618, forks 684 (observed 2026-08-28T04:11:16.850343+00:00)

## What it is
Flet is a Python framework for building realtime web, mobile, and desktop applications entirely in Python, using Flutter to render the UI. It provides 150+ built-in Material and Cupertino controls, built-in packaging for all platforms, and browser-based execution via WebAssembly and Pyodide.

## Use cases
- build a cross-platform app in python without learning dart or javascript
- create a desktop gui app in python as an electron alternative
- build a mobile app for ios and android using only python
- make a realtime web app with python and no frontend experience
- package a python app as a standalone executable
- prototype interactive ui tools quickly in python

## When to choose
- you know python but not frontend technologies like dart, swift, kotlin, html, or javascript
- you want one codebase targeting ios, android, windows, linux, macos, and web
- you need built-in packaging and deployment to app stores
- you want an electron alternative for lightweight desktop apps

## When to avoid
- you need pixel-perfect custom native UI beyond what Flutter widgets offer
- your team already has strong frontend expertise and prefers react/vue/native toolkits
- you need very small binary sizes or minimal runtime overhead
- you require deep low-level platform APIs not exposed by the framework

## Facets
- artifact type: framework
- maturity: active
- function: frontend-framework, ui-components, mobile-framework, desktop-framework, cli, templating
- domain: web-development, cross-platform, mobile-development, desktop-applications, frontend, developer-tools
- platform: python, cross-platform, wasm, cli
- tags: flutter, server-driven-ui, pure-python, no-frontend-required, pyodide, app-packaging, ios, android, web-server, desktop

## Member repositories
- flet-dev/flet (main) score 98

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:11:16.850343+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-29T17:04:50.427710+00:00, confidence not recorded.
  - readme: https://github.com/flet-dev/flet (fetched 2026-08-28T04:11:16.850343+00:00, sha a7cee2fdb457)
  - homepage: https://flet.dev (fetched 2026-08-29T08:02:09.385223+00:00, sha 8942168f5e51)
  - site_page: https://flet.dev/docs (fetched 2026-08-29T08:02:09.442779+00:00, sha 23d3e352d90d)
  - site_page: https://flet.dev/docs/reference (fetched 2026-08-29T08:02:09.476006+00:00, sha 001436735341)
  - site_page: https://flet.dev/docs/studio (fetched 2026-08-29T08:02:09.531532+00:00, sha 2852eeab2bfd)
  - site_page: https://flet.dev/docs/studio/whats-new (fetched 2026-08-29T08:02:09.555985+00:00, sha 4d03f6503424)
  - registry_pypi: https://pypi.org/pypi/flet/json (fetched 2026-08-29T08:02:09.558722+00:00, sha a8b36a7e2619)
- Data as of 2026-08-30T08:39:29.467469+00:00.