Fluxer

Fluxer is a free and open source instant messaging app and VoIP social media platform. It was created independently by Swedish student Hampus Kraft and released to the public in early January 2026.^[1] It is seen widely as an alternative to Discord, gaining popularity following its age verification policy changes.^[2][3] Although the service is freemium, it does not require a subscription for most features, and the platform promises not to sell user data or use it for generative artificial intelligence.^[4][5]

Fluxer has self-hosting, and federation is on its roadmap.^[2][6]

The app was released in early January 2026 in hopes of competing with Discord. By late February of the same year, there was a sharp rise in new accounts, following Discord's announcement of a new age verification policy.^[7]

In March 2026, Fluxer has reached 125,000 users on its primary server.^[8] After it quickly gained popularity in February 2026, the software experienced major outages due to massive user influx, server overload and migration of the backend infrastructure.^[9]

The Plutonium Subscription serves as a paid premium plan. It offers a wider range of tools such as high upload size of files and raised limits, however only applies to the official Fluxer instance,^[10] and third-party hosts are not affected and can set their own limits and tiers.^[3]

Server operators may optionally buy the Operator Pass, getting additional support, however it is not necessary to operate a Fluxer server.^[10]

• Official website