Clone Voices in 5 Seconds Across 23 Languages
Open-source TTS with instant voice cloning, emotion control, and built-in watermarking. Trained on 500K+ hours of data. MIT licensed and free forever.
Experience zero-shot voice cloning across 23 languages with emotion control
Note: The demo is hosted on Hugging Face Spaces. If it's sleeping, it may take 10-20 seconds to wake up. Upload a 5-second reference audio and try voice cloning with emotion control across 23 languages.
Chatterbox Multilingual supports 23 languages covering over 5 billion native speakers worldwide. From English to Mandarin Chinese, Spanish to Arabic, Japanese to Swahili—synthesize natural speech and clone voices across diverse linguistic families without additional training or fine-tuning.
Each language benefits from the same zero-shot cloning capability, emotion control, and production-quality synthesis. Whether you're building global applications, localizing content, or creating multilingual voice assistants, Chatterbox provides consistent quality across all supported languages.
Production-grade features that set it apart
Clone any voice with just 5 seconds of reference audio—no training, no fine-tuning, no complex setup. Chatterbox's zero-shot architecture instantly captures vocal characteristics including tone, pitch, timbre, speaking rate, and prosodic patterns.
Unlike traditional TTS systems requiring hours of training data, Chatterbox extracts essential voice features from minimal audio samples, making professional voice cloning accessible to everyone. Perfect for content creators, developers, and businesses needing rapid voice customization.
The first open-source TTS model to support granular emotion exaggeration control. Dynamically adjust emotional intensity from subtle to dramatic while preserving natural voice characteristics and authentic prosody across all 23 supported languages.
Whether you need enthusiastic podcast narration, somber documentary voicing, or excited gaming character dialogue, Chatterbox adapts emotional expression to match your content's mood. This breakthrough capability brings commercial-grade emotional nuance to open-source TTS.
Every audio file generated by Chatterbox includes Resemble AI's Perth Watermarker—imperceptible neural watermarks embedded below human perceptual thresholds. These audio fingerprints survive MP3 compression, format conversion, and common audio editing operations while maintaining near-100% detection accuracy.
In an era of deepfake concerns, Perth watermarking enables reliable content authentication and provenance tracking. Audio generated by Chatterbox can be verified and traced back to its source, supporting responsible AI practices and combating synthetic media misuse—all without degrading audio quality.
In blind A/B listening tests conducted on Podonos, 63.75% of users preferred Chatterbox's audio quality over ElevenLabs—a leading commercial TTS solution. This remarkable result demonstrates that open-source voice synthesis has reached and exceeded the quality bar set by proprietary systems.
Chatterbox delivers production-ready quality suitable for professional applications including audiobook narration, commercial voiceovers, video content, and customer-facing products. With over 1 million downloads on Hugging Face and 11,000+ GitHub stars, the community validates Chatterbox as enterprise-grade technology.
Chatterbox achieves faster-than-realtime synthesis through alignment-informed generation—generating audio faster than the actual playback duration. This performance enables truly interactive applications where latency matters: conversational AI, live assistants, real-time translation, and dynamic gaming dialogue.
Unlike traditional TTS systems that introduce noticeable delays, Chatterbox responds instantly to user input, creating seamless voice interactions. The optimized inference pipeline maintains this speed across all 23 languages without sacrificing audio quality or naturalness.
Released under the permissive MIT license, Chatterbox grants developers complete freedom to use, modify, and distribute without royalties, attribution requirements beyond license notice, or usage restrictions. Deploy commercially, integrate into proprietary products, or fork and customize—all without licensing fees.
The MIT license eliminates the per-character costs and rate limits typical of commercial TTS APIs, making Chatterbox ideal for high-volume applications, startups managing costs, and enterprises requiring deployment flexibility. With transparent code, active community support, and continuous improvements, Chatterbox represents the future of accessible, production-grade voice synthesis.
Built on cutting-edge technology for production-grade performance
Deploy Chatterbox Multilingual for global voice applications
Generate professional voiceovers for YouTube videos, podcasts, audiobooks, and documentaries in 23 languages. Clone narrator voices for series continuity, create character voices for storytelling, or produce multilingual versions of content with consistent quality. Emotion control adds dramatic range to narration without additional recording sessions.
Build multilingual voice assistants, chatbots, and interactive voice response (IVR) systems with natural, emotion-aware responses. Chatterbox's real-time inference enables fluid conversations without noticeable delays. Clone brand voices for consistent customer experiences, or create unique assistant personalities that adapt emotional tone to user context and conversation flow.
Generate dynamic NPC dialogue, procedural voice content, and character voices for games and VR experiences. Real-time synthesis enables responsive in-game characters that adapt dialogue and emotion to player actions. Create diverse voice casts from minimal voice actor recordings, localize games into 23 languages without re-recording, and produce unlimited dialogue variations for replay value.
Create multilingual course content, training materials, and educational videos with natural instructor voices. Generate personalized learning experiences where voice narration adapts to student pace and comprehension. Produce language learning materials with native pronunciation across 23 languages, create accessible audio textbooks, or build interactive tutoring systems with voice feedback.
Localize films, TV shows, and video content for international markets while preserving original voice characteristics and emotional performances. Clone actor voices across languages, maintain character consistency in dubbed versions, and produce cost-effective multilingual content distribution. Emotion control ensures translated dialogue matches the original scene's dramatic intent and timing.
Build screen readers, text-to-speech tools, and assistive communication devices with natural voice output in 23 languages. Enable visually impaired users to consume digital content, create communication aids for speech disorders, or develop reading assistance tools for dyslexia. High-quality synthesis ensures accessibility technology sounds natural and dignified, not robotic or stigmatizing.
Clone your first voice in minutes with simple Python API
# Install Chatterbox
pip install chatterbox-tts
# Import and initialize
from chatterbox import Chatterbox
tts = Chatterbox()
# Clone voice and generate speech
audio = tts.synthesize(
text="Hello, this is my cloned voice!",
reference_audio="reference.wav",
language="en",
emotion="happy"
)
# Save output
audio.save("output.wav")See why developers choose Chatterbox Multilingual
| Feature | Chatterbox | ElevenLabs | XTTS-v2 | OpenVoice |
|---|---|---|---|---|
| Languages | 23 | 30+ | 17 | 6 |
| Clone Time | 5s | 5s | 6s | ~10s |
| Emotion Control | ✓ | ✓ | ✗ | ✓ |
| Watermarking | ✓ | ✗ | ✗ | ✗ |
| License | MIT | Proprietary | Apache 2.0 | MIT |
| Cost | Free | $330/2M chars | Free | Free |
| User Preference | 63.75% | 36.25% | - | - |
Join over 1 million users who trust Chatterbox Multilingual for zero-shot voice cloning across 23 languages. MIT licensed, free forever, beats ElevenLabs.
MIT Licensed • Built by Resemble AI • 500M Parameters • 500K+ Hours Training Data