Introducing Flux — Voice Chat, Rebuilt

We built Flux because voice communication deserved better.

The dominant voice chat applications today use more memory at idle than many entire operating systems did a decade ago. They ship hundreds of megabytes of Electron-based bloat for what is fundamentally a simple task: sending audio between people.

Why we started from scratch

Rather than building on top of existing frameworks, we chose to build Flux from the ground up:

• Tauri instead of Electron. A 12 MB binary instead of 300 MB. Native performance without the Chromium tax.
• Rust backend. Memory safety without garbage collection. Predictable performance at every connection count.
• LiveKit SFU architecture. WebRTC-based media routing with sub-100ms latency, globally distributed.
• Opus at 48kHz stereo. Constant bitrate encoding at 320 kbps — more than 3× Discord's default audio quality.

Encryption by default

Every voice call in Flux is end-to-end encrypted. ECDH P-256 key exchange with AES-256-GCM encryption. This isn't a premium feature or a toggle — it's how Flux works.

What's next

Flux is currently in beta for macOS. Windows and Linux builds are in development. We're focused on stability, audio quality, and getting the fundamentals right before adding features.

If you're interested, check out the Flux page or create an account to get started.