Dev tools · alternatives · 2026
24 alternatives to Pterocos
A free, live HTML/CSS/JS playground with AI chat and more.
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.
- 1
deco.cx 2.0▲1,078Build web apps 10x faster with Deno, JSX, TS & Tailwind
2024 · decocms.com · its alternatives →
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Locofy.ai▲720Hey 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 →
- 3PA
Primo represents your entire site as files. Pull it down, edit with Claude Code, Cursor, or any AI agent, push it back. Your team manages content visually in the browser.
2023 · primocms.org · its alternatives →
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Layouts.dev▲699A notebook for building interfaces with Tailwind & shadcn/UI
2024 · layouts.dev · its alternatives →
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Hi All This is my personal project that is an IDE and AI assistant for creating tailwind components and pages. You can chat to create designs, then make small edits yourself, and continue chatting to refine them. I am always working to improve the UX. I have a time limited demo page here: https://langcss.com/demo Please let me know what you think! Feedback is welcome. Tech wise, this just uses NextJS (Hosted on Docker) and Azure Open AI.
2024 · langcss.com · its alternatives →
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Point and click any element in your browser, then let Claude, Cursor, Antigravity, or Qwen write the code. Dosmos bridges visual design and AI-powered frontend development.
Feb 2026 · dosmos.app · its alternatives →
- 7

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 →
- 8
Design Rails▲211Hey HN, we're building Design Rails. It's a chat-based brand builder. You describe your project, iterate with an AI designer, and walk away with a logo, color palette, typography, and style guide - all formatted as specs you can drop into your project for Claude Code, Cursor or whatever you're coding with. Free tier gets you a full logo (PNG) and basic palette. Paid tier ($49 one-time) - everything you need for your next project - full coding-agent ready specs, SVG logos, icon variants, etc. Built with Next.js, Vercel AI SDK, and Inngest for the async generation jobs. Would love to hear your…
2014 · designrails.com · its alternatives →
- 9
DevLensPro▲98AI-powered debugging for Claude Code. Point, click, fix
Jan 2026 · devlens.pro · its alternatives →
- 10
VibeCSS▲117AI Design Agent for Google Chrome
Dec 2025 · chromewebstore.google.com · its alternatives →
- 11
chatgpt.js▲137A powerful client-side JavaScript library for ChatGPT
2023 · chatgpt.js.org · its alternatives →
- 12
Flare▲120The graph-first IDE and interactive map for agentic coding
Aug 2026 · github.com · its alternatives →
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Bugpilot▲94Turn errors, DOM, + screenshots into an AI-ready Markdown
Jun 2026 · chromewebstore.google.com · its alternatives →
- 15

Hey guys! I’ve been working on a web app called CodeCafé—a collaborative, browser-based code editor inspired by VS Code and Replit, but with no downloads, no sign-up, and zero setup. You just open the link and start coding—together. The frontend is built with React and TypeScript, and the backend runs on Java with Spring Boot, which handles real-time editing via WebSockets. For syncing changes, I’m using Redis along with a custom Operational Transformation system (no third-party libraries!!!). The idea came after I found out a local summer school was teaching coding using Google Docs (yes,…
2025 · github.com · its alternatives →
- 16M2
http://instacss.com (in case DNS update hasn't propagated: http://morning-warrior-3377.herokuapp.com/) Last night I was annoyed at how slow (and web 1.0-ish) most CSS reference sites seem to be, so I created this. It's basically a scrape of the CSS reference on w3schools, but with client side searching. Feedback is most welcome! some of the tech involved: node, requirejs, backbone, mongodb the code: http://github.com/rgarcia/instacss
2011 · instacss.com · its alternatives →
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Machato is a tiny ChatGPT client that supports all basic features, and more ! I was frustrated with other native implementations that focused on quick access but didn't give easy access to a history of what has been said. Since ChatGPT is a learning tool for me, I'm always ruffling through past conversations. The client supports markdown rendering as well as LaTeX. Feel free to try it out ! For those who see this thread early, you can use the promo code EARLY_BIRD to get a free lifetime license. Let me know if some aspects can be improved or if there are features you'd like to see…
2023 · untimelyunicorn.gumroad.com · its alternatives →
- 19

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…
2024 · github.com · its alternatives →
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When the startup I was working for shut down, I knew it would probably be a while before my health allowed me to commit to a new role, so I decided to start working on some personal projects to keep my mind active and engaged. With AI-augmented VS Code forks being all the rage at the time, I wanted to take a slightly different angle on a code editor/viewer using the same core technology. That led me to building Tachi Code, a Monaco-based code editor that integrates directly into your browser as an extension to streamline your more ephemeral coding tasks, so you can spend less time…
2025 · tachicode.dev · its alternatives →
- 22

- 23NJ
Hey y'all! Jared Palmer here... Me, @shadcn, and @shuding_ just an open-sourced a new Next.js AI chatbot app template built with Next.js, the Vercel AI SDK, and Vercel KV. Source Code: https://github.com/vercel-labs/ai-chatbot
2023 · chat.vercel.ai · its alternatives →
- 24

🚀 A React Framework for building extensible drag and drop page editors - prevwong/craft.js
2020 · github.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 →