pydantic/FastUI

Build better UIs faster. observed · 2026-08-28

github.com/pydantic/FastUI · homepage · Python · MIT (permissive) · archived observed · 2026-08-28

Health v2 · maintenance only

10/100

Activity 75
Release rhythm 42
Longevity 77

Flags: archived

How is this computed?

round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-09-02. Adoption (stars, forks) is never an input.

gap_med: 55
age_days: 1080
days_rel: 309
days_push: 154
n_releases_24m: 2

Full methodology

Adoption not part of the score

8956 stars · 338 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded

FastUI is a framework for building web application UIs with declarative Python code, backed by matching Pydantic models and TypeScript interfaces rendered by a React frontend. It lets Python developers build responsive React-based apps without writing JavaScript, with optional prebuilt components served via CDN.

Use cases

build a web UI from Python without writing JavaScript
create admin dashboards with FastAPI and React
define frontend components declaratively with Pydantic models
serve a React app from a Python backend without npm
build CRUD interfaces quickly for Python web apps

When to choose

you are a Python developer who wants a React UI without touching JavaScript or npm
you use FastAPI or Pydantic and want tight backend-driven UI definitions
you want a prebuilt React frontend served straight from a Python package

When to avoid

you need an actively maintained project - it is marked inactive by its maintainers
you need highly custom frontend behavior beyond the provided component model
your team prefers owning the full frontend codebase in TypeScript

Facets

framework · maturity abandoned

frontend-framework ui-components web-framework templating web-development frontend developer-tools python cross-platform react pydantic fastapi declarative-ui no-javascript bootstrap nodejs web-server

2 sources

readme: https://github.com/pydantic/FastUI · fetched 2026-08-28 · f39004791bb1
registry_pypi: https://pypi.org/pypi/fastui/json · fetched 2026-08-29 · ef0311d6c0d0

Member repositories

Repository	Role	Health v2
pydantic/FastUI	main	10

For agents

markdown · JSON · MCP: product_card(name="pydantic/FastUI")

Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem