Your plugins.Live, in real time.
ReLightHost is a lightweight audio plugin host built with Rust. Drop VST3, VST2 and CLAP plugins into a chain, route your mic through them, and go — for streaming, calls and recording.
Hosts every major plugin format natively
- VST3
- VST2
- CLAP
- ASIO
- WASAPI
Signal chain
Drag, drop, done.
Build a linear chain from input to output. Reorder with drag-and-drop, bypass, swap or rename any plugin — every change is saved automatically.
Features
Everything a live host needs. Nothing it doesn’t.
Plugin chain
Add, remove, reorder, swap, bypass and rename plugins in a clean linear chain.
Plugin library
Search, filter and group plugins by manufacturer before adding them.
Native plugin GUIs
Editors open in real native windows — no web or remote rendering.
Crash isolation
A VST3 that keeps crashing is reloaded in an isolated child process next time.
Audio routing
Choose input and output devices, monitor live audio, toggle hardware loopback.
Real-time meters
Live VU meter, latency, plugin count, CPU and RAM right in the footer.
Session restore
Your devices, chain and plugin state come back exactly as you left them.
System tray
Minimize to tray, start with Windows, and toggle mute from the tray menu.
In action
Real plugins. Real windows.
Open any plugin editor straight from its card. Native windows are embedded via Win32, so your favorite plugins look and feel exactly as they should.
Built-in processors
Clean voice out of the box.
No extra plugins required. ReLightHost ships with AI and DSP processors, each with a pro-audio GUI.
DeepFilterNet 3
State-of-the-art AI speech denoiser on a dedicated MMCSS Pro Audio thread.
RNNoise
Lightweight neural noise suppression with zero external models.
Compressor
Interactive transfer curve and metal rotary dials with fine-tuning.
Voice Designer
3-band EQ with Bode plots and dual oscilloscopes to shape your tone.
Under the hood
Built in Rust, down to the ABI.
VST3, VST2 and CLAP are hosted through raw FFI against each format’s native ABI — no host-side SDK dependency. Audio runs on lock-free buffers over ASIO or WASAPI.
- Audio engine
- Rust
- Formats via raw FFI
- 3
- Low-latency I/O
- ASIO
- Native shell
- Tauri 2
Ready to light up your sound?
Free download for Windows 10/11. Source available on GitHub.
Windows only for now · GPL-3.0