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Alternatives

Products that do what Falcon – Chat-first communities built on Bluesky AT Protocol does

I’m building a chat-first community app that uses Bluesky’s AT Protocol for identity. Current architecture: - Electron client - Spring Boot backend (monolith) - REST for servers/channels - Planning WebSocket-based messaging As a solo builder, I’m trying to balance simplicity with future scalability. At what point would you introduce: - a separate WebSocket gateway - pub/sub (Redis, etc.) - or keep everything in one Spring app until it breaks? Curious how others approached real-time chat systems early on. Project for context:…

  1. 1WB

    Yes, that Fortran.

    Mar 2026 · github.com

  2. 2IB

    I spent the last few days building out a nicer ChatGPT-like interface to use Mistral 7B and Llama 3 fully within a browser (no deps and installs). I’ve used the WebLLM project by MLC AI for a while to interact with LLMs in the browser when handling sensitive data but I found their UI quite lacking for serious use so I built a much better interface around WebLLM. I’ve been using it as a therapist and coach. And it’s wonderful knowing that my personal information never leaves my local computer. Should work on Desktop with Chrome or Edge. Other browsers are adding WebGPU support as well - see…

    2024 · github.com

  3. 3IB

    Hi HN, I built this out of frustration of the evergrowing list of AI models and features to try and to fit my workflow. The visual approach clicks for me so i went with it, it provides more freedom and control of the outcome, because predictable results and increased productivity is what I’m after when using conversational AI. The app is packed with features, my most used are prompt library, voice input and text search, narration is useful too. The app is local-first and works right in the browser, no sign up needed and it's absolutely free to try. BYOAK – bring your own API Keys. Let me…

    2024 · grafychat.com

  4. 4
    Jan334

    Open-source ChatGPT alternative that runs 100% offline

    2024

  5. 5CW

    Hi HN, A few of our team members at Airbyte (and Joe, who killed it!) recently played with building our own internal support chat bot, using Airbyte, Langchain, Pinecone and OpenAI, that would answer any questions we ask when developing a new connector on Airbyte. As we prototyped it, we realized that it could be applied for many other use cases and sources of data, so... we created a tutorial that other community members can leverage [http://airbyte.com/tutorials/chat-with-your-data-using-opena...] and the Github repo to run it…

    2023 · airbyte.com

  6. 6

    Your own open source Slack-like chat

    2015

  7. 7IB

    I’ve been messing around with Bluesky for a while, and one thing I really missed was a proper way to browse discussions in a structured, Reddit-like way specially myself being daily reddit user. So, I ended up building a Reddit-like client for Bluesky that scratches that itch: Threadsky.app It pulls in trending topics, lets you explore conversations with a threaded view (so no more getting lost in replies), and even allows users to create channels with customizations, basically, like subreddits but on Bluesky. That said, this is still pretty barebones, and there’s a lot to improve. I really…

    2025 · threadsky.app

  8. 8

    A small alternative to Slack

    2017

  9. 9
    Bluesky172

    Building a Social Internet

    2023

  10. 10DS

    Hey HN – I built Dock after years of team chat frustrations as a founder. Free forever for teams up to 5. Unlimited search, unlimited history. No "upgrade to see messages older than 90 days" nonsense. Built for teams who work both async and sync/real-time when it matters. runs on SOC 2 infra, compliant, secure and in-transit and at-rest encryption, runs on Cloudflare. Early stage – would love feedback from anyone who's felt the same pain.

    Jan 2026 · getdock.io

  11. 11IB

    I’ve been feeling a bit nostalgic lately, so I decided to build a little web chat app inspired by Yahoo! Messenger. Right now it’s got group chat rooms. Super simple setup, no email required to register. You can create your own room or hop into one that’s already open. Room owners can customize things like backgrounds and even cursors of their room. Users can format their messages with basic markdown like bold, italics, and color texts (kind of like the old Yahoo! days). I even brought back the classic Yahoo! Messenger emoticons because… well, why not? You can try it out here:…

    2025 · buzzed.chat

  12. 12GC

    Hi HN, I built a location-based chatroom with Discord-like servers. This started as a portfolio project to learn WebSockets but has spiraled into something else entirely. There are two features right now: Drop - Single chatrooms that can only be seen within a specified radius and only last for a time less than 48 hours chosen by the user. Hubs - Geofenced servers modeled after Discord. These are not time restricted. They can be created by anyone and the creator becomes the admin able to add channels and set rules. When a user enters the location’s area, they can join the hub and continue…

    Nov 2025 · vicinity.social

  13. 13LL

    Author here. I wanted to keep my conversation with #Gemini about code handy while discussing something creative with #ChatGPT and using #DeepSeek in another window. I think it's a waste to have Electron apps and so wanted to chat with LLMs on my own terms. When I discovered the llm CLI tool I really wanted to have convenient and pretty looking access to my conversations, and so I wrote gtk-llm-chat - a plugin for llm that provides an applet and a simple window to interact with LLM models. Make sure you've configure llm first (https://llm.datasette.io/en/stable/) I'd…

    2025 · github.com

  14. 14FI

    This is something fun I’ve been hacking on recently: ridiculously simple group chat. Go to http://faces.io and then get your friends to do the same. That’s it! :-D Currently works best in Chrome. It’s definitely beta status at best. Audio can get weird—be ready to mute. ;-) Let me know what you think!

    2014

  15. 15IA

    Hello HN. I’d like to start by saying that I am a developer who started this research project to challenge myself. I know standard protocols like MCP exist, but I wanted to explore a different path and have some fun creating a communication layer tailored specifically for desktop applications. The project is designed to handle communication between desktop apps in an agentic manner, so the focus is strictly on this IPC layer (forget about HTTP API calls). At the heart of RAIL (Remote Agent Invocation Layer) are two fundamental concepts. The names might sound scary, but remember this is a…

    Feb 2026 · github.com

  16. 16WR

    We’re building Poppin — a browser extension that turns any webpage into a shared social space. Users can chat in real-time, leave post, or host voice spaces with their communities on any URL. It’s like turning the internet into a live Twitch stream or Reddit communities — for every url of the web without requiring integration. Currently, we’re in invite-only beta and collecting feedback from early users. Try it out and let us know what feels smooth, what feels broken, and what you’d want more of. Intro Video: https://x.com/poppin_so/status/1843651417783054776 Request…

    2025 · poppin.so

  17. 17CR

    Hey HN, what I wanted to build here is a proper universal layer for persisted agentic sessions, that could be seamlessly interacted both via web and a messenger (Telegram). I really like what's done so far and would be nice to hear some feedback from you. The interesting thing is that I started to use Chatcode during its development as soon it was possible, so used this tool to build itself. I know that there could be trust/privacy concerns, because it relies on a gateway that you need to install on your machine in order to work, but: 1. You can use it on any machine, just have some…

    Jun 2026 · chatcode.dev

  18. 18GS

    This weekend I finally shipped Gryt, a project I’ve been building since 2022 — an open-source, self-hostable Discord-style app focused on reliable voice chat + text. I’m the creator. I started it after getting fed up with Discord disconnects/paywalls and wanted something self-hosted and auditable. I started on this in 2022 and had an early proof-of-concept working back then (auth + friends list), but I quickly realized WebRTC voice isn’t something you can duct-tape together. I spent a big chunk of the next couple years learning the stack (ICE/DTLS-SRTP, NAT traversal, SFU design),…

    Feb 2026 · gryt.chat

  19. 19RR

    Hi HN! Few months ago I've shared a new kind of markdown editor that we (a team of three from the Czech Republic) have been working on (HN post: https://news.ycombinator.com/item?id=46144801). What resonated with folks the most was Kraa's unique ‘real-real-time’ chat feature. We have now acted on this feedback, improved the chat features, and made what we call Kraa Trees. Trees allow anyone to create a light-weight community / chat channels. It would be a stretch to call it an alternative to Discord, yet, but we hope that the frictionless nature of Trees will make them…

    Apr 2026 · kraa.io

  20. 20MW

    I always find myself frustrated by how many steps I have to take to video chat with someone online. There's always too much software to download and install, and too many accounts to remember. The high-end, high-price Cisco conferencing systems I've used are especially fragile. So I built Vidless in a weekend for myself, and I hope you find it useful too. Just create a room and share the link, and you'll be chatting in seconds. You can invite several people (I haven't really tested a max yet), and chats on Vidless are always private. Enjoy!

    2012 · vidless.com

  21. 21IL

    Hello HN, I want to share something that I worked on for quite a while as my side project - www.heahy.com an IRC like chat where you can share various media and even record yourself (using web MediaRecorder api). Here is a thread with short explanation on how it works: https://www.heahy.com/channel/homepage/thread/3900adb9e441a09abc757461 I am looking for any feedback and if you have any ideas, advice or questions I am eager to hear it here or on heahy!

    2020

  22. 22AH

    Hi everyone! I’m Arvid, cofounder of Anysphere (https://anysphere.co). With my two friends Sualeh and Shengtong I have been spending the last few months building a dedicated home for important, long-form conversations. We’re super excited to let the HN community test it out! We think that no existing platform for point–to-point communication prioritizes the conversations that you actually care about and that really matter. Instant messaging is filled with careless texts and stickers, email is filled with receipts and spammers, and physical mail, while better in those respects, is…

    2022 · gist.github.com

  23. 23RO

    A few weekends ago I was bored looking for a small project. I decided to make a small chat app that supports SSL and can be deployed easily. Front-end: ReactJS, Redux, Websockets Back End: Node.JS, Redis, Websockets Here is the source: http://www.github.com/lgse/react-chat Here is a demo: http://chat.lgse.net username: pick whatever you like! server: chat.lgse.net:1337 encryption: SSL/TLS There are still a lot of todos, but very functional for a small weekend project. Comments welcomed!

    2016

  24. 24TA

    Hi HN, For years I’ve missed the feeling of an always-on chatroom without the silos and social overhead of Discord. So I built Together: a single-room, no-signup group chat that you join with one click. No channels, no rules (yet), no onboarding flow. Everyone lands in the same place and can start talking in under a second. Why I made it - Forums and blog comments are great but slow; Discord/Slack feel heavy for casual drop-ins if you aren’t already a member of a community. - I wanted the simplest possible space where ~100 people could idle, share shower thoughts, and keep the…

    Oct 2025 · together.lol

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