Show HN: Hyperdiv – Reactive, immediate-mode web UI framework for Python

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  • hyperdiv

    Build reactive web UIs in Python

  • shoelace-css

    A collection of professionally designed, every day UI components built on Web standards. SHOELACE IS BECOMING WEB AWESOME. WE ARE LIVE ON KICKSTARTER! πŸ‘‡πŸ‘‡πŸ‘‡

  • Hello HN,

    I'm releasing Hyperdiv (, a framework for rapidly developing reactive browser UIs in Python, with immediate-mode syntax and using Shoelace ( as its built-in component system.

    This short coding video will give you a good idea of what it is:

    I wrote a brief article about the motivation and approach:

    Hyperdiv doesn't aim to compete with serious full-stack frameworks. The core aim was to make it easy and fast to prototype apps and build UI-based tools. I was originally motivated by internal tools at work -- feeling the need to quickly put together UI-based tools to share with both technical and non-technical coworkers, without having to stand up and maintain a full internal stack.

    This is my first major open source release. I really appreciate your feedback and support. - Marius

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  • streamlit

    Streamlit β€” A faster way to build and share data apps.

  • Looks cool. How do you see this differing from streamlit?

  • hyperdiv-apps

    Example Hyperdiv apps

  • looks neat. it would help if you hosted the demo apps rather than expecting the user to install and run them themselves to get a feel for it

  • pue

    server-driven ui with python/vue.js

  • this is cool, and a way better executed/more fully featured version of this poc i did a couple weeks ago :) which uses vue under the hood

    example app:

    good luck! i think there’s definitely something here with this kind of thing

  • reflex

    πŸ•ΈοΈ Web apps in pure Python 🐍

  • Thanks! Pue looks cool, thanks for sharing. I see some similarities to in terms of providing a declarative dom expression language with built-in conditionals and loop primitives.

  • FastUI

    Build better UIs faster.

  • This looks really nice! I feel like Python's frontend ecosystem is currently exploding. I came across fastUI[1] today as well which looks similar.


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  • Looks super cool! Clearly an idea that people want - I built something similar to this almost two year ago [1] but your project is a lot more fleshed out. I like that you actually used websockets instead of my hacky approach of using an http stream.


  • nicegui

    Create web-based user interfaces with Python. The nice way.

  • Dash is similar in spirit, as a "build web UIs with Python" framework. Dash seems more similar to nicegui ( architecturally than to Hyperdiv. Like nicegui, it builds a static dom that is then mutated via callbacks or data bindings.

    By contrast, Hyperdiv lays out UI declaratively based on state, and when state changes, the app re-runs, generating an updated UI. Streamlit and Hyperdiv seem to work similarly, though I'm not sure how Streamlit handles state and state-based layout.

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