Instant Offline Access

AI Voice for Everyone. Offline & Instant.

Stop waiting for cloud APIs. Generate studio-quality speech on your CPU with a tiny 25MB model. No GPU, no internet, zero latency.

downloadDownload for Windows
check_circle 25MB Installercheck_circle 100% Privatecheck_circle Free Forever

How it Works

1

Ultra-Fast 25MB Model

We've distilled powerful neural networks into a tiny footprint that loads in milliseconds on any hardware.

2

Pure CPU Execution

Optimized for ONNX Runtime. No expensive GPU required—perfect for laptops and office workstations.

3

Total Data Sovereignty

Since it runs locally, your text never touches the cloud. Complete privacy for sensitive documents.

Catus Desktop
J
Jasper (En-US)
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Enter text to synthesize...

Built-in Premium Voices

Three distinct, high-fidelity neural voices included in the core package. No extra downloads.

J

Jasper

Deep & Authoritative

Perfect for narration, long-form content reading, and audiobooks.

B

Bella

Clear & Friendly

Ideal for desktop assistants, educational tools, and quick notifications.

L

Luna

Dynamic & Expressive

Great for character work, gaming, and creative storytelling projects.

Technical Efficiency

Binary Size~25 MB
RAM Usage< 150 MB
Latency< 100ms
RequirementsDual Core CPU