Cast - AI Voice Studio

Turn Text Into Broadcast-Quality Speech. 100% Private. 100% Local.

Cast brings professional AI voice synthesis to your Mac with studio-quality results that rival cloud services like ElevenLabs—but everything runs locally on your device. Your text never leaves your Mac. Your voice clones stay private. No subscriptions. No usage limits.

THE DEEPSEEK MOMENT FOR VOICE AI

Just like DeepSeek proved open models could match proprietary LLMs, Cast proves local text-to-speech can deliver commercial-grade quality. State-of-the-art neural voice synthesis, unlimited generation, complete privacy—all for a one-time purchase.

VOICE CLONING IN 5 SECONDS

Clone any voice from just 5-30 seconds of audio. Record yourself, a character voice, or any voice you have permission to use. Cast captures tone, accent, and speaking style with remarkable fidelity. Create unlimited custom voices.

318+ PROFESSIONAL VOICES INCLUDED

A carefully curated library of diverse, high-quality voices ready to use:
- Male, female, and neutral voices across different ages and styles
- Expressive, warm, authoritative, and conversational personalities  
- Clear, natural-sounding speech for any project
- Searchable by gender, age, accent, and characteristics
- Favorite your most-used voices for quick access

MULTI-VOICE SCRIPT MODE

Create podcasts, audiodramas, and conversations with up to 4 voices:
- Assign different voices to different speakers
- Color-coded for easy identification
- Adjust speed and expression per line
- Generate all voices simultaneously
- Perfect for dialogue-heavy content

PROFESSIONAL MULTI-TRACK EDITOR

A Logic Pro-inspired timeline for assembling your final audio:
- Multiple tracks for layering voices, music, and effects
- Real-time waveform visualization and VU meters
- Split, trim, and arrange audio segments
- Volume and pan controls per track
- Import background music and sound effects
- Save projects and return anytime
- Keyboard shortcuts for efficient editing

NATURAL, EXPRESSIVE SPEECH

Powered by Chatterbox, a state-of-the-art neural TTS model:
- Human-like rhythm, stress, and intonation
- Emotional expression control (0-100%)
- Speed adjustment (0.5x to 2.0x)
- Add natural reactions: [laugh], [sigh], [hmm], [cough]
- Handles unlimited text length with intelligent chunking
- Faster-than-realtime generation (Turbo mode)

17 LANGUAGES SUPPORTED

English, Danish, German, Spanish, Finnish, French, Italian, Malay, Dutch, Norwegian, Polish, Portuguese, Swedish, Turkish, Japanese, Korean, Chinese

Export in WAV, M4A, or MP3 formats for maximum compatibility.

PRIVACY BY DESIGN

Unlike cloud-based TTS services:
- 100% on-device processing
- Zero data collection
- No API calls or cloud uploads
- Your text stays on your Mac
- Your voice clones stay private
- Works completely offline (after initial model download)

ONE-TIME PURCHASE. NO SUBSCRIPTIONS.

Stop paying monthly fees for voice generation:
- ElevenLabs: $264-1,188/year
- Cast: $29.99 once, use forever
- Unlimited generations, unlimited voices, unlimited exports

FREE TIER AVAILABLE

Try Cast before you buy:
- 10 text-to-speech generations
- 2 custom voice clones
- 10 exports per day
- Full access to all 318+ built-in voices

Upgrade to Premium ($19.99) for unlimited everything.

PERFECT FOR:

Content Creators: YouTube narration, podcast intros, social media audio
Podcasters: Multi-voice conversations, character voices, narration
Filmmakers: Dialogue, narration, placeholder audio, ADR
Business: Training videos, presentations, demos, prototypes
Accessibility: Reading assistance, document narration, custom voices
Developers: App prototyping, voice UI testing, placeholder audio
Writers: Audiobook drafts, script readings, character voice exploration
Educators: Course content, instructional videos, language learning