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AI · alternatives · 2026

24 alternatives to A React and Next.js UI Toolkit for LLMs

Hey HN, I wanted to share a UI toolkit project I’ve been working on recently, born out of how difficult I found it to build a great UX on top of LLMs, and keep application state in sync. I’ve built: - A React/JS front-end library for conversational interfaces, which makes it super easy to bootstrap AI assistants and ChatGPT style UX: https://github.com/nlkitai/nlux - A set of adapters that simplify integration with AI backends such as LangServe and HuggingFace The library is highly configurable, easy to theme, supports markdown streaming (that was tough to get…

This React and Next.js UI toolkit helps developers build conversational interfaces and AI assistants. It provides a front-end library for chat-based UX and adapters for connecting to AI backends like LangServe and… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. A React and Next.js UI Toolkit for LLMs launched in 2024; newer entries below may have overtaken it.

  1. 1
    Locofy.ai▲720

    Hey there, I am Honey - Co-founder at Locofy. We, along with other makers, have been building Locofy.ai to help massively accelerate the builders - the designers, developers, product managers & founders, and we're excited to share it today with the HN Community. Locofy.ai simply converts designs into production-ready frontend code for web and mobile apps. It adapts to your preferred design tools, tech stack, and workflows with ease and lets you launch upto 4x faster, while letting designers design the way they want and giving high-quality responsive code that developers love. With this…

    2022 · locofy.ai · its alternatives →

  2. 2

    UI elements in ready-to-use components for React

    2017 · coolsymbol.now · its alternatives →

  3. 3

    All the chat components you need. None of the complexity

    Jun 2026 · cometchat.com · its alternatives →

  4. 4NA

    A new open source React / JS library that makes it super simple to create conversational AI interfaces, using ChatGPT or any other LLM

    2024 · nlux.ai · its alternatives →

  5. 5

    Build, code and ship in app messaging in a few hours

    2019 · getstream.io · its alternatives →

  6. 6

    Build AI Copilots & AI Agents into any React app | 12k Stars

    2024 · copilotkit.ai · its alternatives →

  7. 7

    The Frontend Stack for Agents & Generative UI. React, Angular, Mobile, Slack, and more. Makers of the AG-UI Protocol - CopilotKit/CopilotKit

    2023 · github.com · its alternatives →

  8. 8
    Render▲169

    React-inspired Swift library for writing UIKit UIs

    2016 · github.com · its alternatives →

  9. 9

    🐦 Custom conversational assistants for your React app. - mme/beakjs

    2023 · github.com · its alternatives →

  10. 10

    AI suite powered by state-of-the-art models and providing advanced AI/AGI functions. Includes AI personas, AGI functions, world-class Beam multi-model chats, text-to-image, voice, response streaming, code highlighting and execution, PDF import, presets for developers, much more. Deploy on-prem or in

    2023 · github.com · its alternatives →

  11. 11

    Hi! My name is David and I wanted to show you a react (and solidjs) library I've built over the last months. The intention behind it is, that there are some actually useful use cases for AI on the frontend that are largely unexploited still. LLMs are particularly good at extracting structured information from unstructured text and thats really useful for any types of forms - which can be multimodal. Setting up server side logic for AI usage can take time. Streaming data to the frontend and parsing it there to make it usable can be frustrating. Imho thats one of the reasons why people…

    2025 · ai-hooks.dev · its alternatives →

  12. 12DU

    We've built this over the last few weeks to leverage vector search and LLMs (this is backed by GPT-3.5, though we're also testing Flan-T5) to answer question over large sets of documents with references. Currently, we've ingested the documentation for React and some key adjacent libraries (Redux, React-Redux, React-Router, MUI). This allows you to ask various natural language questions and the output is hopefully a relevant answer with code examples if applicable, while sourcing the original docs whenever possible. We're working on adding up more documentations and have more "general"…

    2023 · docasker.com · its alternatives →

  13. 13AJ

    I've been building a web UI library for a side project of mine. I thought it might be useful to others, so I'm releasing it as open source. To put it simply, I realized that most of my pain points with React come from its declarative model ui=f(state). So I'm trying something that I'm calling "imperative JSX." Instead of treating JSX as the source of truth for your UI, it essentially becomes a query interface for DOM manipulation. I first had the idea for it a few months ago, and only began writing it in earnest last week, so it's extremely early and nowhere near production-ready. Still, I'd…

    2024 · npmjs.com · its alternatives →

  14. 14
    PoemKit▲82

    React toolkit for fast web design and development

    2021 · github.com · its alternatives →

  15. 15

    The world's first ChatGPT AI React admin template

    2023 · horizon-ui.com · its alternatives →

  16. 16

    Hey Hackers! My name is Alex and I’ve been working on this project for the past 8 months with the support of Figma Creator Fund. I’d love to hear your thoughts from your experience working with designers & component libraries. I started out in design and later got into coding, so I understand both sides really well. I did UX Design for 12 years at startups, at my own studio and at Wix, and then worked as a front-end dev at Wix for 2 more years. I've noticed a common problem: most component libraries work great for devs but not so well for designers. In my experience working with big teams,…

    2024 · github.com · its alternatives →

  17. 17AT
  18. 18
    Forge▲66

    A complete React toolkit made for AI

    May 2026 · forge.webba-creative.com · its alternatives →

  19. 19

    Hey HN! I built Experiment to solve a common frustration in LLM development: the lack of proper tools for prompt engineering experimentation. Here's what makes it different: Key Features: - Load and edit chat completion logs from CSV files - Fork and modify specific conversation entries - Run inference via Anthropic, Mistral, and OpenAI - Define custom tools using JSONSchema format - Visual tool usage analysis with collapsible, sorted key-value pairs - Full mobile support and available as installable PWA Technical Highlights: - Built with React using custom isomorphic architecture -…

    2025 · github.com · its alternatives →

  20. 20

    Hi everyone, built this open source collection of UI components, the idea was mostly to explore different design and ended up building this project over the past few months and recently got sponsored by Vercel 2025 OSS program! It's built mostly for React and Next.js and few other features such as: - Components can be open with v0 for AI customization - Components can be installed easily with shadcn cli Github: https://github.com/kokonut-labs/kokonutui

    2025 · kokonutui.com · its alternatives →

  21. 21

    A UI Kit for Transactional LLM apps

    2025 · mrikal.com · its alternatives →

  22. 22

    Add Siri like Native AI Agents in you App. Contribute to SugarAI-HQ/CopilotOne development by creating an account on GitHub.

    2024 · github.com · its alternatives →

  23. 23

    Hi HN, I built Prompt Area — a contentEditable rich text input component for React, designed specifically for AI chat interfaces. The problem: if you're building an AI chat UI, your input needs @mentions (to reference context), /commands (to trigger actions), #tags, inline markdown, file attachments, and undo/redo. Existing options are either too limited (react-mentions only does mentions) or massive overkill (Tiptap, Lexical, and Plate are full document editors built on ProseMirror/Slate — way too heavy for a prompt input). Prompt Area sits in the middle. It uses a…

    Jul 2026 · prompt-area.com · its alternatives →

  24. 24

    React-based tools to build in the Atlassian Design style

    2017 · atlaskit.atlassian.com · 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 →