MeloTTS
High-quality multi-lingual text-to-speech library by MyShell.ai.
Pricing
Free tier
Flat rate
Adoption
↘CoolingLicense
Open Source
Data freshness
Aging · Jun 8, 2026Overview
What is MeloTTS?
MeloTTS is a high-quality multi-lingual text-to-speech library that supports English, Spanish, French, Chinese, Japanese, and Korean. It offers developers the ability to integrate natural-sounding speech into their applications across multiple languages.
Key differentiator
“MeloTTS stands out by offering high-quality text-to-speech capabilities across multiple major world languages in an open-source library format, making it a versatile choice for multilingual applications.”
Capability profile
Capability Radar
Honest assessment
Strengths & Weaknesses
↑ Strengths
↓ Weaknesses
API requires Python-specific patterns, TypeScript SDK is community-maintained
v0.1 to v0.2 migration required rewriting chain definitions
Documentation and examples focus only on English, Spanish, French, Chinese, Japanese, and Korean
Benchmarks show significant processing delays for texts over 1000 characters
Fit analysis
Who is it for?
✓ Best for
Teams building multilingual applications who need high-quality TTS support across several major world languages.
Developers working on projects that require natural-sounding voice output in multiple languages.
✕ Not a fit for
Projects requiring real-time speech synthesis with extremely low latency, as MeloTTS may not be optimized for such use cases.
Applications needing TTS support for languages other than the six officially supported ones.
Cost structure
Pricing
Free Tier
Available
Open source — free to use
Starts at
$0
Model
Flat rate
Enterprise
None
Performance benchmarks
How Fast Is It?
Ecosystem
Relationships
Works well with
Next step
Get Started with MeloTTS
Step-by-step setup guide with code examples and common gotchas.