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 launched on January 3, 2026 with 154 votes, #202 of 14,585 launches that month and more than 95% of that year's launches.
In plain words
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 interface while remaining free and open under the AGPLv3 license. The platform allows users to create unclaimed accounts to explore communities without requiring email or passwords.
written from the facts on this page · September 2026
From the sources
An open-source, independent instant messaging and VoIP platform. Built for friends, groups, and communities.
Free and open source chat for friends, groups, and communities, with text, voice, video, screen sharing, and self-hosting.
In the maker’s words, at launch
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…
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