Dev tools · alternatives · 2026
24 alternatives to Mountaineer – Webapps in Python and React
Hey HN, I’m Pierce. Today I’m open sourcing a beta of Mountaineer, an integrated framework for building webapps in React and Python. I’ve written a good 25+ webapps over the last few years in almost every major framework under the sun. Python and React remain my favorite. They let you get started quickly and grow to scale. But the developer experience of linking these two worlds remains less than optimal: — Sharing typehints and schemas across frontend and backend code — Scattered fetch() calls to template data and modify server objects — Server side rendering / gateway support — Error…
Mountaineer is an open-source framework for building web applications that combines Python backends with React frontends. It addresses integration challenges between these two languages by allowing developers to share… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Prices are shown for the 1 we have checked on their own sites, 1 of them free or with a free tier. Mountaineer – Webapps in Python and React launched in 2024; newer entries below may have overtaken it.
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refine▲480100% open source React framework to build web apps 3x faster
2022 · github.com · its alternatives →
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Hey HN, This is Jan, founder of Apify, a web scraping and automation platform. Drawing on our team's years of experience, today we're launching Crawlee [1], the web scraping and browser automation library for Node.js that's designed for the fastest development and maximum reliability in production. For details, see the short video [2] or read the announcement blog post [3]. Main features: - Supports headless browsers with Playwright or Puppeteer - Supports raw HTTP crawling with Cheerio or JSDOM - Automated parallelization and scaling of crawlers for best performance - Avoids blocking using…
2022 · crawlee.dev · its alternatives →
- 3
WeWeb▲537Create websites faster with a next-generation visual builder
2021 · weweb.io · its alternatives →
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Hi everyone, I've been "funemployed" for a few months and with all that free time and idle hands I wrote a full web framework (think Rails, not Flask) for Rust. It's boring old MVC, has its own ORM, templates, background jobs, auth, websockets, migrations and more. If you're keen but don't feel like rewriting your app in a different language, Rwf has a WSGI server to run Django (or Flask) inside Rust [1], letting you migrate to Rust at your own pace without disrupting your website. I think Rust makes a great prototyping and deploy straight to production language. Now it has yet another…
2024 · github.com · its alternatives →
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Skybridge▲581The full-stack open source React framework for MCP Apps
Jun 2026 · skybridge.tech · its alternatives →
- 7RWRocket – Web Framework for Rustfree▲484
2016 · rocket.rs · its alternatives →
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Hypertune▲260Hey HN! I'm Miraan, the founder at Hypertune, and I'm excited to be posting this on HN. Hypertune lets you make your code configurable to let teammates like PMs and marketers quickly change feature flags, in-app copy, pricing plans, etc. It's like a CMS but instead of only letting you set static content, you can insert arbitrary logic from the UI, including A/B tests and ML "loops". I previously built a landing page optimization tool that let marketers define variants of their headline, CTA, cover image, etc, then used a genetic algorithm to find the best combination of them. They used…
2025 · hypertune.com · its alternatives →
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Open source, dev-friendly and powered by GraphQL and React
2019 · webiny.com · its alternatives →
- 11
Let AI create a full-stack web app based on your description
2023 · usemage.ai · its alternatives →
- 12
1kB-ish JavaScript framework for building hypertext applications - hyperapp/hyperapp
2018 · github.com · its alternatives →
- 13
Build your web application in a snap.
2019 · react-rainbow.io · its alternatives →
- 14MO
I’m excited to share about Mesop - a new, open-source Python UI framework that enables Python developers to quickly build delightful web apps in a scalable way. A small team of us at Google have been developing Mesop as an unofficial 20% project for the past few months. A wide range of research and product teams at Google have been using it to rapidly build internal apps and we’ve gotten a lot of positive feedback internally so now we’re looking to get feedback from the open-source community. We think that Mesop provides a unique approach to building web UIs in Python - making it both easy…
2024 · google.github.io · its alternatives →
- 15
Hello HN! The day has finally come to stop adding features and start sharing what I've been building the last 5-6 months. It's a bit of CrewAI, OpenDevon, LangFuse/Cloud all in one, providing devs who prefer TypeScript an integrated framework thats provides a lot out of the box to start experimenting and building agents with. It started after peeking at the LangChain docs a few times and never liking the example code. I began experimenting with automating a simple Jira request from the engineering team to add an index to one of our Google Spanner databases (for context I'm the…
2024 · github.com · its alternatives →
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Hi HN! I created this lib in the need of a simple and tiny framework to easily do AJAX-style navigation / replacement of fragments in the page, in a web application. For people who don't want to use client-side-rendering and complex frameworks à la React, there are nowadays a few "HTML-over-the-wire" libraries, like HTMX, Unpoly or this super-tiny one Swap.js :) One other key thing is that no external tool is needed: no bundler, no webpack, no TypeScript compiler, no minification needed. Just write HTML, JS (+ your preferred server-side language: PHP, Python, etc.) and it works. The…
2023 · github.com · its alternatives →
- 18
For a year or two I've been building a UI library with the aim of making desktop applications fun and easy to write. It is currently written in C/Ruby and uses a custom tree sitter grammar to describe templates. Features include: composable UI components, template directives, event and prop handling, slots, styles and automation capabilities baked in. One of the goals of the project is privileging easy to write custom components via a drawing API over providing a fixed set of components. At the time of this writing it should install on Windows, Mac, and Linux, but sometimes it is hard…
2025 · codeberg.org · its alternatives →
- 19
been working on this for nearly a year
2023 · github.com · its alternatives →
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Hey HN, I’m Jimmy, co-founder of Dropbase (https://www.dropbase.io). We are an internal tools builder for Python developers. All you have to do is import any Python scripts/libraries, declare UI components, and layer app permissions so you can share them with others. We’re a middle ground between Airplane and Retool—simpler UI creation than Airplane, more code-centered than Retool. UI building is declarative and you can bind Python scripts/functions to UI components. You can write Python scripts/functions using our App Studio with support from a Python Language…
2023 · github.com · its alternatives →
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Davia▲56Hi HN, We’re Afnan, Theo and Ruben. We’re all ML engineers or data scientists, and we kept running into the same thing: we’d write useful Python functions, either for ourselves or internal tools, and then hit a wall when we wanted to share them as actual apps. We tried Streamlit and Gradio. They’re great to get something up quickly. But as soon as we needed more flexibility or something more polished, there wasn’t really a path forward. Rebuilding the frontend properly in React isn’t where we bring the most value. So we started building Davia. You keep your code in Python, decorate the…
2025 · davia.ai · its alternatives →
- 22
An Alpine.js plugin that includes the core functionality of HTMX in a streamlined (3KB) API.
2024 · alpine-ajax.js.org · its alternatives →
- 23BP
Fir leverages Golang’s standard library html/template package and a bit of alpinejs to allow building reactive UIs. You start with plain old html and use alpinejs to enhance it to bring no-page-reload interactivity to web apps. The Fir toolkit is designed for Go developers with moderate html/css & js skills who want to progressively build reactive web apps without mastering complex web frameworks. It includes a Go library and an Alpine.js plugin. How it works ? On receiving user-interactions the fir server re-renders html templates and sends it over the wire where the fir client…
2023 · livefir.fly.dev · its alternatives →
- 24BS
Basecoat ports the upcoming shadcn/ui v4 [1] to plain HTML + Tailwind (no React): - Live demo & documentation: https://basecoatui.com - MIT‑licensed and free: https://github.com/hunvreus/basecoat/ - Works with any backend (Flask, Django, Rails, PHP, etc.) or static site. - Fully theme‑compatible with shadcn/ui [2]. - Uses a sliver of Alpine.js only for a few interactive bits (e.g. combobox). Swap in your own JS if you prefer. - Dead simple to use, just drop in a class here and there: Click me Why I built it: after moving from a Next.js stack back…
2025 · its alternatives →
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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →