One sentence

Fluxer is a free and open source alternative to Discord that anyone can host themselves, made by Fluxer Platform AB, an independent company in Stockholm, Sweden.


One paragraph

Fluxer is a free alternative to Discord for friends, groups and communities, with text chat, voice and video calls and screen sharing. Its code is open source under the AGPL, and anyone can run their own instance for free. fluxer.com, the official instance, is run by Fluxer Platform AB, an independent company that Hampus Kraft founded in Stockholm, Sweden, in 2025. Fluxer is funded by optional purchases and donations, without ads or outside investors.


Longer version

Fluxer is a free alternative to Discord for friends, groups and communities, with text chat, voice and video calls and screen sharing. Its code is open source under the AGPL, and anyone can run their own instance for free. fluxer.com, the official instance, is run by Fluxer Platform AB, an independent company that Hampus Kraft founded in Stockholm, Sweden, in 2025. Fluxer is funded by optional purchases and donations, without ads or outside investors.

Fluxer started as Hampus Kraft's high school project in 2020 and opened to everyone on fluxer.com in January 2026. On October 19, 2026, fluxer.com had more than 500,000 accounts. That number counts accounts, not active users.

Fluxer runs on Windows, macOS, Linux and the web, and on Android in a public beta. The official apps can also connect to instances that people host themselves. Optional federation is planned, and so is end-to-end encryption for calls, personal notes, DMs and group DMs. fluxer.com's stored data is moving to Fluxer's own hardware in Sweden.


Fact sheet

Product
A free and open source chat app for friends, groups and communities, with text chat, voice and video calls and screen sharing, which anyone can also host on a server of their own.

Official instance
fluxer.com (https://fluxer.com)

Company
Fluxer Platform AB (https://fluxer.com/company-information#company)

Based in
Stockholm, Sweden

Hosting
Most of fluxer.com's stored data is hosted with Vultr in New Jersey, in the US, and Fluxer is moving it to its own hardware in Sweden (https://fluxer.com/help/servers-in-sweden).

Founded
2025

Launched
fluxer.com opened to everyone on January 2, 2026.

Founder and CEO
Hampus Kraft

Team
Two product engineers, Hampus Kraft and a second engineer who works on the iOS and Android apps, with help from a few people outside the company who contribute to the code.

License
AGPL-3.0-or-later (https://github.com/fluxerapp/fluxer/blob/main/LICENSE)

Source code
fluxerapp/fluxer (https://github.com/fluxerapp/fluxer) for the server, web app and desktop app, and fluxerapp/flutter_client (https://github.com/fluxerapp/flutter_client) for the iOS and Android apps.

Platforms
Windows, macOS, Linux, the web and Android, which is in a public beta on Google Play (https://play.google.com/store/apps/details?id=com.fluxer) and as a direct download (https://fluxer.com/download/android). The iOS app is expected on the App Store in early November 2026, and Fluxer's help article on the iOS app (https://fluxer.com/help/fluxer-app-store) has the latest news on the release.

Other apps called Fluxer
Until the official iOS app is out, any Fluxer app in the App Store was made by someone else. Several other apps and companies share the name too, and a help article lists all of them (https://fluxer.com/help/fluxer-app-store#same-name).

Price
Free. Plutonium and the Operator Pass are optional purchases on fluxer.com, and running your own instance is free.

Funding
Plutonium subscriptions, Operator Pass purchases and donations, with no ads and no money from outside investors.

Accounts
More than 500,000 on fluxer.com on October 19, 2026. This counts accounts, not active users. See how Fluxer counts them (https://fluxer.com/help/how-many-people-use-fluxer).

Organization number
559537-3993

Press contact
press@fluxer.com

Latest news
https://fluxer.com/blog/fluxer-november-2026

Download
https://fluxer.com/download

Web app
https://fluxer.com/app

Mastodon
https://social.fluxer.com/@fluxer

Bluesky
https://bsky.app/profile/fluxer.app

GitHub
https://github.com/fluxerapp/fluxer

Blog
https://fluxer.com/blog

Story
https://fluxer.com/help/story-of-fluxer


Founder

Hampus Kraft
Hampus Kraft founded Fluxer Platform AB in Stockholm in 2025 and is its CEO. Fluxer started as his high school project in 2020. He studies Computer Engineering at KTH Royal Institute of Technology and has worked on Fluxer full-time since September 2025. He leads its development and builds its backend, web app and desktop app.

Credit the photo to Fluxer Platform AB.


Press contact

For press questions, email press@fluxer.com.
If you have a deadline, put it in the subject line.
For partnerships and co-branding, email partners@fluxer.com.
