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Alternatives

Products that do what OpenSource Fiesta does

I just open-sourced Dhruv Rathee's AI startup

  1. 1
    Jan334

    Open-source ChatGPT alternative that runs 100% offline

    2024

  2. 2

    Discover open-source tools with an AI chat assistant

    Apr 2026 · openresource.site

  3. 3

    The easiest way to chat with local AI

    2025

  4. 4OS

    Hey everyone, We have been building SecureAI Tools -- an open-source application layer for ChatGPT and ChatPDF-like AI tools. It works with locally running LLMs as well as with OpenAI-compatible APIs. For local LLMs, it supports Ollama which supports all the gguf/ggml models. Currently, it has two features: Chat-with-LLM, and Chat-with-PDFs. It is optimized for self-hosting use cases and comes with basic user management features. Here are some quick demos: * Chat with documents using OpenAI's GPT3.5 model: https://www.youtube.com/watch?v=Br2D3G9O47s * Chat with documents…

    2023 · github.com

  5. 5

    The fast, easy and cheap OpenAI alternative

    2023

  6. 6

    Your open-source, local second brain for every AI

    May 2026 · kuku.mom

  7. 7OS

    2023 · chathub.gg

  8. 8
    OpenCDB12

    AI Chatbot.

    2025

  9. 9

    Open-source AI agent video editor with a real timeline

    Jul 2026 · openchatcut.com

  10. 10

    An open-source language translation system for 200 languages

    2022

  11. 11
    Scoopika127

    Build gpt-4o level AI assistants for your app

    2024

  12. 12IO

    Hi HN! Last year the project I launched here got a lot of good feedback on creating speech to speech AI on the ESP32. Recently I revamped the whole stack, iterated on that feedback and made our project fully open-source—all of the client, hardware, firmware code. This Github repo turns an ESP32-S3 into a realtime AI speech companion using the OpenAI Realtime API, Arduino WebSockets, Deno Edge Functions, and a full-stack web interface. You can talk to your own custom AI character, and it responds instantly. I couldn't find a resource that helped set up a reliable, secure websocket (WSS) AI…

    2025 · github.com

  13. 13

    Open-source chatbot and AI tools creation platform

    2023

  14. 14
    ChattyUI149

    Run open-source LLMs locally in the browser using WebGPU

    2024

  15. 15GA

    Hi! It's a complete product with integrations to Auth0, OpenAI, Google Cloud and Stripe, which consists of Next.js Web App, Node.js + Express Web API and Python + FastAPI AI API I've built this software, because I wanted to make money by selling tokens to enable users talking with the chatbot. But I think Google / Apple will include such AI-powered assistant in their products soon, so nobody will pay me for using it So I open source the product today and share it as a GNU GPL-2 licensed software I'm happy to assist in case if something is unclear or requires additional docs and answer…

    2023 · github.com

  16. 16

    Use open-source AI in your Node.js apps, up to 67x faster

    2023

  17. 17
    Makr.io20

    AI-built Next.js web apps – open-sourced for anyone to adapt

    2024

  18. 18AO

    The official Slack AI product looks great, but with limited access and add-on pricing, I decided to open-source the version I built. Especially for all the communities on Slack that would have to convert to paid and buy the upgrade to access the official SlackAI product/add-on which is not going to be financially viable in most cases. There's no plan to sell anything, just something I built as a way to learn some new tools that I thought others might get use out of. The repo is a ready-to-run slack app that provides thread summaries and channel overviews on demand using OpenAI (heavy…

    2024 · github.com

  19. 19

    Custom ChatGPT agents with your own data

    2023

  20. 20OS

    Hi everyone, we’re a small team, supported by Mozilla, who are working on re-imagining a UI for training, tuning and testing local LLMs. Everything is open source. If you’ve been training your own LLMs or have always wanted to, we’d love for you to play with the tool and give feedback on what the future development experience for LLM engineering could look like.

    2025 · github.com

  21. 21

    Open-source Next.js admin dashboard, built for AI agents

    6d ago · nextadmin.co

  22. 22

    Open Source AI Chat Support with Notion as knowledge base

    2024

  23. 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

  24. 24DO

    Hey HN, I have been working on a side project for the last 3 months, built around LangchainJS and pgvector. It now supports ChatGPT, Llama, Claude, and Bison models, and the bot can integrate with WhatsApp, Telegram, and Discord for now. I would really appreciate some feedback. Thanks! repo: https://github.com/n4ze3m/dialoqbase

    2023

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