Shiny Express – Reactive web framework for data science in Python

In plain words

Shiny Express is an open source web framework that lets Python data scientists build interactive web applications with a simplified syntax resembling standard Python scripts. It enables real-time data manipulation and visualization in full-stack applications without requiring extensive web development knowledge. This new syntax for Shiny for Python offers a more concise alternative to previous versions, making it accessible to those primarily experienced with data science rather than web development.

written from the facts on this page · September 2026

From the sources

Today we’re officially announcing the most important addition to Shiny for Python since its inception: Shiny Express, a new way to write Shiny apps in Python! Shiny Express is designed to make it significantly easier to get started with Shiny, and to write simple apps with a minimum of boilerplate. Here’s what a simple “Hello, World” app looks like in Shiny Express: from sh

posit::conf is September 14-16 in Houston, TX! Register now to attend in person or virtually. Today we’re officially announcing the most important addition to Shiny for Python since its inception: Shiny Express , a new way to write Shiny apps in Python! Shiny Express is designed to make it significantly easier to get started with Shiny, and to write simple apps with a minimum of boilerplate. The ui.input_text() function creates a text input, and the @render.text decorator makes the output of the greeting() function appear on the page. After installing Shiny with pip install shiny , you can save this code as app.py and start the app with shiny run app.py . Or, skip the install and try…from shiny.posit.co

• 
  Shiny2014 · shiny.posit.co · ▲85

  A web application framework for R

• 
  Shiny.js simulates reflections on the web for mobile devices2019 · github.com · ▲113

  🌟 Shiny reflections for mobile websites. Contribute to rikschennink/shiny development by creating an account on GitHub.

• 
  I wrote a RDBMS (SQLite clone) from scratch in pure Python2023 · github.com · ▲371

  I wrote a relational database management system (RDBMS) (sqlite clone) from scratch in pure Python.

• 
  Taipy 3.02024 · github.com · ▲299

  Build powerful data and AI apps in pure Python

• 
  Plain – The full-stack Python framework designed for humans and agentsApr 2026 · github.com · ▲97

  The Python web framework for building apps. Contribute to dropseed/plain development by creating an account on GitHub.

• 
  Shiny.js2019 · pqina.nl · ▲209

  Shiny reflections for mobile websites 🌟

• 
  /dev/null▲490

  a social network for devs

  Dev tools · 3d ago · dev-null.sh

• 
  Whiteboard (YC W26) – an open-source IDE for thoughtful software design▲423

  open-source IDE for thoughtful software design. Contribute to devdotfast/whiteboard development by creating an account on GitHub.

  Dev tools · 28d ago · github.com

• 
  Reladraw – A diagram language where you decide where to place things▲411

  Contribute to reladraw/reladraw development by creating an account on GitHub.

  Dev tools · 26d ago · github.com

• 
  OpenBot▲362

  Grok Bot alternative: free, local, open-source, multiplayer

  Dev tools · 23d ago · openbot.run

• 
  Talanoa▲346

  Hi HN, I’m a fullstack developer, and honestly, I’ve lost count of how many side projects I’ve worked on over the years. But one idea kept coming back to me: a different kind of email client. It first came to me in 2014: “What if we could handle emails more like conversations?” Every year, I’d revisit this concept in my “Build Notes.” Ten years later, no one had built exactly what I had in mind — so I finally decided to do it myself. That’s how Talanoa was born. I wanted something focused on people, not timelines. I was tired of marking messages as unread just to remember to reply later, or…

  Dev tools · 21d ago · talanoa.email

• 
  CoreSpeed▲332

  One MCP for everything your agents need: apps, memory, tools

  Dev tools · 29d ago · corespeed.io

• 
  Amie▲1,334

  Turn meeting notes into automated workflows. Handle meetings, summaries, todos and emails (soon) with your AI personal assistant.

  Work · 2024 · amie.so

• 
  Findr▲1,296

  Search all your apps, at once

  AI · 2024 · usefindr.com

• 
  Notion Calendar▲1,199

  Beautifully designed for your work and life

  Work · 2024 · notion.so

• 
  Huudle AI Project Assistant▲1,070

  Connect meetings, track to-do, get aligned

  AI · 2024 · huudle.io

• IM
  I made a website to find best bus seat to avoid the sun while traveling▲963

  Sit in Shade - Discover the optimal seat to stay in the shade during your journey. Sit In Shade provides real-time sun exposure data and route visualization.

  Life & fun · 2024 · sitinshade.com

• 
  Letterly▲937

  Turn your speech into well-written text

  AI · 2024 · letterly.app