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Dev tools · alternatives · 2026

24 alternatives to Fluxer

Hey HN, and happy new year! I'm Hampus Kraft [1], a 22-year-old software developer nearing completion of my BSc in Computer Engineering at KTH Royal Institute of Technology in Sweden. I've been working on Fluxer on and off for about 5 years, but recently decided to work on it full-time and see how far it could take me. Fluxer is an open source [2] communication platform for friends, groups, and communities (text, voice, and video). It aims for "modern chat app" feature coverage with a familiar UX, while being developed in the open and staying FOSS (AGPLv3). The codebase is largely written in…

Fluxer is an open-source communication platform for text, voice, and video chat designed for friends, groups, and communities. Built with TypeScript and Erlang, it offers modern chat app features with a familiar user… 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
    Flux▲375

    how can we make AI agents more accessible? it has been a crazy journey seeing how AI agents gets smarter every single day but interaction layer is still missing we are launching Spectrum TODAY: one Unified API connect your AI Agents into iMessage, WhatsApp, Telegram and more

    Jan 2026 · photon.codes · its alternatives →

  2. 2
    Flux▲250

    ChatGPT for hardware

    2023 · flux.ai · its alternatives →

  3. 3
    Integral ▲760

    i've been a power user of slack/discord and etc. since i was a kid and i dont like the fact that they get unusable/noisy after 20 members join. so i designed integral to get rid of the 2 biggest causes of noise on slack/discord and similar apps: 1. channels 2. recency based feed i've replaced these 2 with a few subtle features (different approaches for business vs communities). check it out and let me know what you think :)

    2024 · integralhq.com · its alternatives →

  4. 4

    All-in-one space for collaboration, all-hands and networking

    2022 · spatial.chat · its alternatives →

  5. 5

    Hey everyone, I made this thing: https://tryflux.ai/. Here's a demo video: https://screen.studio/share/1y2EnC26 Context: I've tried probably 15 different AI apps over the past year. ChatGPT, note-taking apps, productivity apps, all of it. But most of them are just clutter on my iphone. They live in some app I have to deliberately open. And I just... don't. But you know what I open 50 times a day without thinking? iMessage. So out of mild frustration with the "AI app graveyard" on my phone, I built Flux. What it does: - You describe a personality and what…

    Jan 2026 · tryflux.ai · its alternatives →

  6. 6

    Open-source live-chat, email support, omni-channel desk. An alternative to Intercom, Zendesk, Salesforce Service Cloud etc. 🔥💬 - chatwoot/chatwoot

    2019 · github.com · its alternatives →

  7. 7
    Jan▲329

    Open-source ChatGPT alternative that runs 100% offline

    2024 · jan.ai · its alternatives →

  8. 8
    Buzz▲161

    Your people, your agents, your project — all in one place

    Jul 2026 · buzz.xyz · its alternatives →

  9. 9

    Build, code and ship in app messaging in a few hours

    2019 · getstream.io · its alternatives →

  10. 10

    Hey HN! I'm the developer of one of the most popular Android clients for HN, Harmonic for Hacker News. Over the years I have recieved many requests to open source the app which I am finally doing - sorry about taking so long :) Having been very busy working on my PhD during the last two years - Harmonic has not recieved the attention it deserves. I therefore hope that open sourcing it can give it a new lease on life. I also hope that by posting here many of the nice people who have reached out to me will notice that the app is finally open source. I'm also happy to answer questions about the…

    2023 · github.com · its alternatives →

  11. 11
    Flux▲4

    Team chat with an extension marketplace and desktop app.

    Mar 2026 · getflux.org · its alternatives →

  12. 12

    Hi HN, I have been experimenting with a messaging protocol called FLUX. The goal is to explore what email might look like if it was designed today instead of in the 1980s. FLUX tries to simplify a few things that feel complicated in the current email stack. Identity is based on cryptographic keys instead of usernames and passwords. Messages are signed and verified automatically. The transport is real time and does not depend on the traditional SMTP relay model. The current implementation is small and meant as a prototype. The whole server is only a few hundred lines of Python so the protocol…

    Mar 2026 · github.com · its alternatives →

  13. 13

    Hi HN! https://flat.social is a web video meeting app for organising fun online meetings & social events. Each participant can move around and talk with others in their proximity. Here is a quick demo if you wanna see it in action: https://youtu.be/Y2yH3twjrx4 I’ve been on it solo for around a year right now. Tech used is Next.js, Typescript, PIXI.js on the front-end and Node, Mediasoup, Socket.io and Matter.js (physics engine) on the backend. Feel free to jump in into the demo room (https://flat.social/f/Flat.Social-Demo) to say hi, I’ll be…

    2022 · flat.social · its alternatives →

  14. 14

    Client library for Minimal Chat. Contribute to minimalchat/client development by creating an account on GitHub.

    2017 · github.com · its alternatives →

  15. 15

    Hey HN, I'm Hakan, the founder of Colanode (https://github.com/colanode/colanode), an open-source, local-first collaboration app combining the best of Slack-style chats and Notion-style note-taking, fully self-hostable for complete data control. Here's a quick demo: https://www.youtube.com/watch?v=wp1hoSCEArg As a heavy Notion user, I often found it tough to get my teams fully onboard since people naturally gravitate toward chat for quick interactions. Maintaining context between chat apps like Slack and documentation apps like Notion became increasingly…

    2025 · github.com · its alternatives →

  16. 16BA

    It works on top of the open-source workflow engine windmill [1] that you can easily self-host on a tiny server or a large k8s cluster. You will also need pgvector (here hosted on supabase) and of course a GPT4 api key. It showcases an approval step so that you only provide answers you are confident giving to your users, which feels less robotic. All the building blocks are scripts that you can reuse outside of windmill and you could build this in any other workflow engines (although less conveniently). We use it for our own needs on discord [2] and thoughts this was a common need for any…

    2023 · windmill.dev · its alternatives →

  17. 17

    One AI agent. Every channel. Zero missed messages.

    Jul 2026 · cx-flux.com · its alternatives →

  18. 18
    Chaton▲88

    1:1 video chat P2P open source

    2021 · its alternatives →

  19. 19

    Hey all I'm Asim. I'm an engineer who's been hacking on an open source project called Micro for the past eight years (https://micro.dev). In that time I've done a lot of things, all Dev related but ultimately most of my career was spent working on platforms for consumer products. After many attempts I've decided the path forward is to focus on building something that solves my own problem. Micro Chat is a solution to some of the social media problems I've been having. What I've been looking for most of my life is a community. A place to belong. I scoured the internet for that with…

    2023 · micro.mu · its alternatives →

  20. 20

    Contribute to staab/git-chat development by creating an account on GitHub.

    2016 · github.com · its alternatives →

  21. 21

    Hi HN, After spending some time with the new `flux kontext dev` model, I realized its most powerful capabilities aren't immediately obvious. Many people might miss its true potential by just scratching the surface. I went deep and curated a collection of what I think are its most interesting use cases – things like targeted text removal, subtle photo restoration, and creative style transfers. I felt that simply writing about them wasn't enough. The best way to understand the value is to see it and try it for yourself. That's why I built FluxKontextLab (https://fluxkontextlab.com).…

    2025 · fluxkontextlab.com · its alternatives →

  22. 22DA

    Learn how to make a chatbot with ChatGPT, train AI chatbots and add them to your website. RunDexter – AI Nerds sharing knowledge & building bots.

    2016 · rundexter.com · its alternatives →

  23. 23
    Fluxa▲14

    Lightweight project management for freelancers / small teams

    2024 · fluxa.app · its alternatives →

  24. 24

    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 · 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 →