# widgetti/solara

A Pure Python, React-style Framework for Scaling Your Jupyter and Web Apps

Repository: https://github.com/widgetti/solara
Canonical: https://ross.abutalabs.com/products/solara
Homepage: https://solara.dev
Language: Python
License: MIT
License Family: permissive
Topics: dataapp, fastapi, flask, ipywidgets, jupyter, starlette, webapp
Last push: 2026-08-25T06:35:33+00:00

## Health v2 (maintenance only)
Score: 77/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 99, release rhythm 35, longevity 100
- inputs: {"age_days": 1638, "days_push": 8, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 2169, forks 198 (observed 2026-08-28T04:06:21.612897+00:00)

## What it is
Solara is a pure Python, React-style framework for building scalable Jupyter and standalone web applications on top of ipywidgets. It provides reactive state management, a component library, routing, and hot code reloading, and apps run in JupyterLab, Voilà, Colab, or as standalone servers with FastAPI.

## Use cases
- build interactive data dashboards in pure python
- turn an ipywidgets prototype into a production web app
- create reactive web apps without writing javascript
- build multipage python web applications with routing
- run data apps in jupyter and as standalone web servers
- build a python chatbot or ai demo ui
- replace streamlit or dash with a react-style python framework

## When to choose
- you want scalable, component-based python web apps with react-like hooks and state management
- you already use ipywidgets and want to deploy in Jupyter, Voilà, Colab, or as a standalone web app
- you need type-safe, testable data apps with hot reloading and a rich built-in component library

## When to avoid
- you need a highly custom, pixel-perfect frontend beyond what ipywidgets-based components offer
- you are building a traditional REST API or non-UI backend service
- you need enterprise features like advanced auth without a commercial solara-enterprise license

## Facets
- artifact type: framework
- maturity: active
- function: web-framework, ui-components, state-management, routing, data-visualization, templating
- domain: web-development, data-science, data-visualization, frontend, developer-tools
- platform: python, cross-platform
- tags: ipywidgets, reactive, jupyter, react-style, data-apps, fastapi, voila, pure-python, web-server

## Member repositories
- widgetti/solara (main) score 77

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:06:21.612897+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 2026-08-30T02:49:28.609010+00:00, confidence not recorded.
  - readme: https://github.com/widgetti/solara (fetched 2026-08-28T04:06:21.612897+00:00, sha ce611c14f9f2)
  - homepage: https://solara.dev (fetched 2026-08-29T10:29:55.439578+00:00, sha 220af8c2d6ed)
  - site_page: https://solara.dev/documentation (fetched 2026-08-29T10:29:55.442014+00:00, sha c08cd5c37e71)
  - site_page: https://solara.dev/documentation/getting_started (fetched 2026-08-29T10:29:55.443934+00:00, sha 125dee90dbcb)
  - site_page: https://solara.dev/about (fetched 2026-08-29T10:29:55.450661+00:00, sha 706b656dea73)
  - site_page: https://solara.dev/pricing (fetched 2026-08-29T10:29:55.445847+00:00, sha 7b436bd67076)
  - site_page: https://solara.dev/changelog (fetched 2026-08-29T10:29:55.447789+00:00, sha 11d33e997b2f)
- Data as of 2026-08-30T08:39:29.467469+00:00.