Fluxer Platform AB

Fluxer is a free, open-source instant messaging and VoIP platform for communities and teams. It runs on Windows, macOS, Linux, Android, iOS and the web. The official instance is freemium with an optional premium tier, and communities can also run their own instances.

Key features

• Text chat and communities
• Voice calls (VoIP)
• Cross-platform apps
• Self-hostable instances
• Premium tier with larger uploads

Pricing

Fluxer has a free plan with custom pricing for larger plans. Prices checked on the official pricing page in October 2026 and may change.

Who it's for

Fluxer is used by startups and SMBs.