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AI · alternatives · 2026

24 alternatives to Open-source AI app builder you can embed into your own SaaS

We just open sourced a first class our AI web app builder. Instead of using another hosted AI coding platform, you can fork this project and build your own AI app builder, fully customized and running under your own brand. It includes: Next.js + TypeScript AI chat with streaming Artifact generation File explorer Code editor Live preview Databases Sandboxes to be used by AI agents Versions Responsive production-ready UI And a lot more... The only required dependency is the Totalum API, which exposes the AI generation engine through a simple REST API. You can replace or extend the backend…

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.

  1. 1

    Hi HN community! We want to share AI-town, a deployable starter kit for building and customizing your own version of AI simulation - a virtual town where AI characters live, chat and socialize. Inspired by great work from the Stanford Generative Agent paper (https://arxiv.org/abs/2304.03442). A few features: - Includes a convex.dev backed server-side game engine that handles global state - Multiplayer ready. Deployment ready - 100% Typescript - Easily customizable. You can fork it, change character memories, add new sprites/tiles and you have a custom AI simulation…

    2023 · github.com · its alternatives →

  2. 2

    Turn AI ideas into working apps in seconds

    2024 · anotherwrapper.com · its alternatives →

  3. 3
    Solid▲639

    AI that builds real web apps

    2025 · trysolid.com · its alternatives →

  4. 4

    An open-source AI agent that builds full-stack SaaS apps

    2025 · github.com · its alternatives →

  5. 5

    Generate web sections and mini-apps with AI

    2023 · builder.io · its alternatives →

  6. 6
    ReactAI▲440

    Open source free AI react components builder

    2024 · its alternatives →

  7. 7

    Open-source foundation of ToolJet AI - the enterprise app generation platform for internal tools, dashboards, business applications, workflows and AI agents. Build visually, from a prompt, or from Claude Code, Codex and Cursor over MCP 🚀 - ToolJet/ToolJet

    2021 · github.com · its alternatives →

  8. 8

    Build real apps, not prototypes

    Feb 2026 · modelence.com · its alternatives →

  9. 9

    Build custom AI assistant with no-code visually

    2024 · aibot.how · its alternatives →

  10. 10
    Builduo▲157

    Build SaaS backends with AI and deploy in minutes

    2025 · builduo.com · its alternatives →

  11. 11

    Today we’re releasing a full AI app builder in Srcbook. We released our TypeScript notebook a few months ago (https://news.ycombinator.com/item?id=41291700) and the response was encouraging, but we kept hearing that people wanted to build interactive apps. Today we are releasing just that. You can think of it as an open-source and local version of vercel’s v0. We actually think of it as something in between an IDE and that, because we believe the code matters and don’t shy away from that: you can view and edit the code in a full editor, but prompt your way forward if that's…

    2024 · github.com · its alternatives →

  12. 12

    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 →

  13. 13

    Build a full-stack app from an AI prompt

    2023 · fsai.elie.tech · its alternatives →

  14. 14

    Bring reliable AI virtual assistants to your app

    2024 · scoopika.com · its alternatives →

  15. 15
    Vivid▲114

    An AI wingman to build your web app

    2023 · its alternatives →

  16. 16

    I have been trying to create AI retool where tooling is done via AI, to create full stack apps like internal portals, ERP apps. Which led me to an architecture where we give ai pre build component, tools and let is just do the binding, content generation work to create full stack apps. With this approach in a single prompt AI is able to generate final config jsons using chained/looped agentic llm flow and we render a full stack app with the configs at the end. I have open sourced the whole project whole code, app builder, agentic architecture, backend for you to use. Github:…

    2025 · oneshotcodegen.com · its alternatives →

  17. 17

    Ai app builder to build & finish web apps with human support

    2025 · turbobuild.ai · its alternatives →

  18. 18
  19. 19

    The open-source AI app builder — on your own server

    Jul 2026 · sandboxd.io · its alternatives →

  20. 20

    Link: https://docs.trysoma.ai/ For the past ~9 months I’ve been building Soma, an open-source AI agent & workflow runtime written in Rust, with a TypeScript SDK (Python coming soon). It’s not a framework; it’s meant to sit underneath whatever agent/tooling code you already write (Vercel AI SDK, LangChain, custom code, etc.). It provides features around your framework + a better DX for building agents. I’ve tried to take a Next.JS model: open-source, good DX, self-deployable. I originally set out to build a vertical back-office/operations product for SMEs. I needed a…

    Dec 2025 · docs.trysoma.ai · its alternatives →

  21. 21

    Build lovable little apps with your voice in your browser

    2025 · its alternatives →

  22. 22

    Hey HN! A few months ago we shared our AI dataset generator as an open source repo, and the response was incredible (https://news.ycombinator.com/item?id=44388093). We got requests from folks who wanted to use it without the hosting overhead, so we created both options: a hosted version (https://www.metabase.com/ai-data-generator for instant use and the source code fully open (https://github.com/metabase/dataset-generator) for anyone who wants to self-host or contribute. Looking forward to seeing how you use it and what you build on top of…

    2025 · metabase.com · its alternatives →

  23. 23

    Fast, secure local AI workflows with minimal setup

    2024 · github.com · its alternatives →

  24. 24

    Open-source TypeScript framework for AI dev: prompts, evals, tracing, cost tracking, security, and durable execution. Built for Claude Code.

    Apr 2026 · output.ai · 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 →