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Dev tools · alternatives · 2026

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NestUI is a web framework written in Dart for building user interfaces. Launched in 2016, it enables developers to create web-based UIs using Dart's programming language. The framework is designed for developers who… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Web framework for building UIs, written in Dart launched in 2016; newer entries below may have overtaken it.

  1. 1

    Build beautiful native apps in record time, now on web too

    2021 · flutter.dev · its alternatives →

  2. 2
    OpenUI▲543

    Describe UI and see it rendered live

    2024 · github.com · its alternatives →

  3. 3
    Flutter▲268

    Build beautiful native apps in record time

    2018 · flutter.dev · its alternatives →

  4. 4
    A2UI▲250

    A safe way for AI to build UIs your app can render

    Dec 2025 · a2ui.org · its alternatives →

  5. 5
    BotUI▲233

    A JavaScript framework to build conversational UIs 🤖

    2017 · its alternatives →

  6. 6

    Hi, I made a bridge (https://github.com/fzyzcjy/flutter_rust_bridge v2.0.0) between Flutter and Rust, which auto translates syntaxes like arbitrary types, &mut, async, traits, results, closure (callback), lifetimes, etc. The goal is to make a bridge between the two, seamlessly as if working in one single language. Then, as an example, I showed how to write Rust applications with GUI by utilizing Flutter. That is discussed in the link in details. To play with it, please visit the GitHub repo, or refer to the end of the article for detailed folders and commands. When I…

    2024 · cjycode.com · its alternatives →

  7. 7
    YoinkUI▲340

    Copy any webpage's UI with 1 click

    2025 · yoinkui.com · its alternatives →

  8. 8
    NestJS▲149

    A progressive Node.js framework 🚀

    2018 · nestjs.com · its alternatives →

  9. 9

    Hey HN, I'm Nate, the creator of Tamagui. One is a React framework that does two things differently in hopes of simplifying how we build websites and apps: 1. It unifies React Native and React web with typed file system routing by making Vite able to serve RN. This lets you share (or diverge) your code in a simpler way for cross-platform apps. 2. We've partnered with Zero (https://zerosync.dev) to make local-first work well. We've been building a solution in One that makes Zero supporting server rendering, without waterfalls, and with seamless server/client handoff. ---…

    2024 · onestack.dev · its alternatives →

  10. 10

    Build beautiful and functional native apps online

    2021 · ph.flutterflow.io · its alternatives →

  11. 11

    Build beautiful, modern apps for mobile and web

    2022 · flutterflow.io · its alternatives →

  12. 12

    Huge set of everything you need to design and prototype

    2017 · its alternatives →

  13. 13
    LangUI▲131

    Open source UI components tailored for your AI projects

    2023 · langui.dev · its alternatives →

  14. 14
    NextUI▲493

    Beautiful, fast and modern React UI library

    2022 · heroui.com · its alternatives →

  15. 15OS

    Hello! This is Jeane and Samuel and we’re building RecipeUI. RecipeUI is an open source Postman alternative that uses TypeScript to statically type and autocomplete requests. We built this because current API tools don’t deal with the fact that some APIs are just painful to work with. For us, it’s usually error after error as we try to figure out how to properly form the first request. We recorded a demo to show you how TypeScript helps us autocomplete a request correctly. https://youtu.be/O_Mly_p-g5s How does our platform improve the developer experience? The analogy is…

    2023 · recipeui.com · its alternatives →

  16. 16

    Flutter transforms the entire app development process. Build, test, and deploy beautiful mobile, web, desktop, and embedded apps from a single codebase.

    2012 · flutter.io · its alternatives →

  17. 17

    Develop web apps in React & Node.js with no boilerplate

    2022 · wasp.sh · its alternatives →

  18. 18
    OpenUI▲322

    Thesys just open-sourced their generative UI rendering engine. Interesting timing given where Google a2ui and Vercel's json-render are headed. The difference worth noting: a2ui and json-render both treat JSONL as the contract between the LLM and the renderer. Thesys is betting that's the wrong primitive. Their engine uses a code-like syntax (OpenUI Lang) instead — LLM writes it, renderer executes it. The argument is that LLMs are fundamentally better at generating code than generating structured data, so you get cleaner output and ~67% fewer tokens. The broader vision seems to be a…

    Mar 2026 · openui.com · its alternatives →

  19. 19

    Learn SwiftUI, React & UI design, completely redesigned

    2021 · apps.apple.com · its alternatives →

  20. 20
    CheapUI▲122

    AI-powered UI component generator for web development

    2025 · its alternatives →

  21. 21
    Stac▲67

    Open-source Server-Driven UI framework for Flutter

    Nov 2025 · stac.dev · its alternatives →

  22. 22

    Build production-ready mobile apps with AI speed, visual clarity, and code control. Deploy to iOS, Android & Web. From the team behind FlutterFlow.

    2025 · dreamflow.app · its alternatives →

  23. 23

    Hey HN. Eric Seidel here (former lead of Flutter & Dart at Google, prev. YC S06). I founded Flutter and led the team for almost a decade. One of the constant questions we got was would we support code push like the web/react native: https://github.com/flutter/flutter/issues/14330 I left Google about a year ago and set out to build a company around Flutter and decided to start with code push. It took us a year to build. We had to build a new toolchain for Dart and a custom interpreter (for store compliance). But it works! Our beta has already been used by…

    2024 · github.com · its alternatives →

  24. 24ND

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