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Alternatives

Products that do what CopilotKit adds CopilotTextarea (built with slateJS) does

CopilotKit is comprehensive copilot infrastructure for react apps. Fully open-source. Just added CopilotTextarea - a drop-in replacement for that supports context-aware copilot-style autocompletions with any LLM/backend. Also coming up for CopilotTextarea (VERY soon): rich text support, and cursor-style insertions/edits.

  1. 1CT

    As simple as that. You can replace any with a and get Copilot-style autocompletions. There's a GIF + demos in the Github repo. Feedback welcome & appreciated!

    2023 · github.com

  2. 2CT

    `` is a drop-in `` replacement (looks identical & supports all customizations & params) w GPT completions (like in Gmail / GitHub Copilot). It's built with slateJS and works with any OpenAI-compatible endpoint (bring your own backend). You pass it a "purpose" prompt & external context to inform completions. E.g. the demo gif[1] has a purpose of "COOL and SLICK announcement post", and was given the CopilotKit release notes as context. (super important, to make suggestions specific). Part of CopilotKit (open-source copilot/sidekick infra). IMO it works really well. After working with…

    2023 · github.com

  3. 3MK
  4. 4

    CMS with visual editing based on React components

    2022

  5. 5

    Embedded user assistant - any product, every user

    2023

  6. 6

    Universal themed & unstyled components

    2023

  7. 7
    Reakit206

    A toolkit to build accessible web apps with React

    2019

  8. 8

    The new voice of your stories

    2025

  9. 9

    An open source alternative to GitHub Copilot

    2021

  10. 10
    TinaCMS232

    Open source editing tool-kit for Gatsby and Next.js sites

    2019

  11. 11

    Build ComfyUI workflows with natural language

    2025

  12. 12
    Cursor180

    Autocomplete redesigned to predict your next edit

    2024

  13. 13

    Your AI-powered browser

    2025

  14. 14
    StyleKit120

    UI framework for OSX

    2016

  15. 15RI
  16. 16ID

    Hey HN! I develop browser extensions, I suck at web design, and I've been exploring AI/LLMs. With my new found free-time since dropping work hours, I've developed a Design Copilot browser extension [0]. It does what it says on the tin - you choose a part of your website and the tool gives you instant expert design feedback - "change this font to that, add this much whitespace, use brighter colours .... etc" The tool is completely 100% free to use, its powered by bringing your own AI API Key, and the current LLM it uses is Google Gemini 1.5 Pro. I've yet to hit the free rate-limit and I…

    2024 · old.reddit.com

  17. 17RM
  18. 18CP

    We've just released the first version of GPT React Designer. A live editor that can generate React components. Copy and pasting code before you see how it would look is tedious. The goal is to extend this into an app that supports different styling frameworks (Chakra, Bootstrap, ...). Potentially integrate it directly into a codebase to perform tasks and so on and allow non-developers to simply utilize this to copy & paste code.

    2023 · github.com

  19. 19WA

    Text → GPT → p5 | An app that turns your text prompt into p5js code (computer graphics) using OpenAI's GPT and displays it. Under the hood: Nextjs, React, CodeMirror, p5js I got into programming through arduino and processing. I've always thought about how to lower the barriers for people to start programming. With GPT, we can now turn plain text into code, allowing people to start coding without knowing code. OpenAI APIs don't come cheap! If you like the project, consider sponsoring access for others here: https://www.buymeacoffee.com/mattelim Cheers!

    2023 · text-gpt-p5.vercel.app

  20. 20RJ

    I've been working in the couple of months on an experiment, trying to make GPT-4 much more useful for web development / React, writing production code that is relevant to any repository without copy pasta from ChatGPT or having small snippets of auto-complete from Copilot that are not in your context. The agent is taking a user story text and generating and composing multiple react components to generate the relevant screens, based on atomic design principles, with Typescript, TailwindCSS and RadixUI. Is is still experimental but very interesting results, I would like to get your…

    2023 · github.com

  21. 21FV

    Hi HN, I'm the creator of Foldkit, a TypeScript framework built on Effect and inspired by the Elm Architecture. This page compares the same pixel art editor implemented in React and Foldkit side-by-side. Rather than focusing on benchmarks or isolated examples, I wanted to compare what building and maintaining the same application feels like in each architecture. The comparison includes state management, UI, async operations, side effects, application structure, and testing.

    Jun 2026 · foldkit.dev

  22. 22AA

    Hey HN! I wanted to share a project I've been working on for the past 3 months for feedback - a platform to make it easy to build and integrate a copilot assistant into any software product. We want to speed up the revolution of how people use software that's going to take place - products driven through a chat interface. You can check it out here: https://getuserlove.com/ With UserLove, you can: 1. Create and integrate a custom assistants for your product. 2. The assistant can take actions for users, - navigate the product, - trigger walkthroughs and - answer questions. 3.…

    2023 · getuserlove.com

  23. 23ET

    We built a browser extension (Chrome + Firefox) that captures the runtime DOM and exports it as JSON. Not the pre-render source (HTML/CSS/JS, templates, bundles) and not a screenshot — but the live, post-render state the browser is actually displaying: - visibility/hidden, disabled/required - current input values and validation/validationMessage - dataset attributes - trimmed text - stable selector paths Why: LLMs often miss or guess UI state. Screenshots are too opaque, pre-render source is too noisy. A structured snapshot gives reproducible context for debugging…

    2025

  24. 24BA

    I've been specializing in UI for over a decade. Using code for UI is great but I always wished there was a more visual code to build apps and sites. So I went ahead and built it. Decided to build it with Compose Multiplatform since I work a lot with Kotlin. Currently exports to CMP as it was simpler due to the context switch. You can try it for free and export some apps

    2025 · license.builtwithpaper.com

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