--- title: "ChatTTS vs marytts" type: "comparison" canonical_url: "https://www.graphcanon.com/compare/2noise-chattts-vs-marytts-marytts" tools: ["2noise-chattts", "marytts-marytts"] --- # ChatTTS vs marytts *GraphCanon updated Aug 16, 2026* ## Verdict Pick ChatTTS if chatTTS is a Python-based repository for generating speech tailored to everyday conversations in both Chinese and English; pick marytts if open-source Java multilingual TTS system for generating spoken output from text. [ChatTTS](https://2noise.com) reports 40k GitHub stars, 4.3k forks, and 60 open issues, last pushed Apr 10, 2026. [marytts](https://marytts.github.io/) has 2.6k stars, 770 forks, and 134 open issues, last pushed Jan 17, 2025. Figures are from public GitHub metadata via [ChatTTS's repository](https://github.com/2noise/ChatTTS) and [marytts's repository](https://github.com/marytts/marytts). | | [ChatTTS](/tools/2noise-chattts.md) | [marytts](/tools/marytts-marytts.md) | | --- | --- | --- | | Tagline | A generative speech model for daily dialogue | An open-source multilingual text-to-speech synthesis system written in pure Java | | Stars | 39,768 | 2,582 | | Forks | 4,257 | 770 | | Open issues | 60 | 134 | | Language | Python | Java | | Adopt for | ChatTTS is a Python-based repository for generating speech tailored to everyday conversations in both Chinese and English. | Open-source Java multilingual TTS system for generating spoken output from text. | | Persona | - | - | | Runtime | - | - | | License | Licensed under AGPL-3.0, which allows for free use, distribution, and modification as long as these rights are maintained in derivative works. | Other | | Categories | AI Agents, Speech & Audio | Speech & Audio | ## Trust and health _Sourced signals - not a safety guarantee. No winner column._ | | [ChatTTS](/tools/2noise-chattts.md) | [marytts](/tools/marytts-marytts.md) | | --- | --- | --- | | Maintenance | Slowing (36%) | Dormant (18%) | | Days since push | 127d | 557d | | Open issues (now) | 60 | 134 | | Stars delta | +140 (30d) | Unknown | | Open issues delta | -1 (30d) | Unknown | | Full report | [trust report](/tools/2noise-chattts/trust.md) | [trust report](/tools/marytts-marytts/trust.md) | ## Shared compatibility - **Python**: [ChatTTS](/tools/2noise-chattts.md) - Python runtime; [marytts](/tools/marytts-marytts.md) - Python runtime ## Decision facts: ChatTTS - **Hosting:** unknown - **Requirements:** Python-based implementation means that familiarity with Python is necessary for effective use. - **Adopt for:** ChatTTS is a Python-based repository for generating speech tailored to everyday conversations in both Chinese and English. - **License detail:** Licensed under AGPL-3.0, which allows for free use, distribution, and modification as long as these rights are maintained in derivative works. ## Decision facts: marytts - **Adopt for:** Open-source Java multilingual TTS system for generating spoken output from text. ## Choose when ### Choose ChatTTS if… - ChatTTS is primarily Python; marytts is Java. - License: ChatTTS is AGPL-3.0, marytts is Other. - Requirements: Python-based implementation means that familiarity with Python is necessary for effective use.. - Tags unique to ChatTTS: agent, chatgpt, chattts, chinese language. - Also covers AI Agents. - Use ChatTTS when you require text-to-speech functionality for daily dialogue applications, especially those involving Chinese or English languages. ### Choose marytts if… - marytts is primarily Java; ChatTTS is Python. - License: marytts is Other, ChatTTS is AGPL-3.0. - Tags unique to marytts: java, speech-synthesis, text-to-speech, tts. - When you need a pure Java-based solution for integrating TTS in your software projects. ## When NOT to use ChatTTS - Avoid using ChatTTS in environments where the speech generation model is expected to handle complex technical jargon or specialized vocabulary, as it's optimized for daily conversation. - Do not use ChatTTS if your project requires the integration of more than two languages simultaneously due to its current support for only Chinese and English. ## When NOT to use marytts - If real-time performance is critical, as MaryTTS may not be optimized for such use-cases. - When looking for a cloud-hosted service, as MaryTTS requires local deployment. ## Common questions ### What is the difference between ChatTTS and marytts? ChatTTS: A generative speech model for daily dialogue. marytts: An open-source multilingual text-to-speech synthesis system written in pure Java. See the comparison table for live GitHub stats and shared categories. ### When should I choose ChatTTS over marytts? Choose ChatTTS over marytts when ChatTTS is primarily Python; marytts is Java; License: ChatTTS is AGPL-3.0, marytts is Other; Requirements: Python-based implementation means that familiarity with Python is necessary for effective use.; Tags unique to ChatTTS: agent, chatgpt, chattts, chinese language; Also covers AI Agents; Use ChatTTS when you require text-to-speech functionality for daily dialogue applications, especially those involving Chinese or English languages. ### When should I choose marytts over ChatTTS? Choose marytts over ChatTTS when marytts is primarily Java; ChatTTS is Python; License: marytts is Other, ChatTTS is AGPL-3.0; Tags unique to marytts: java, speech-synthesis, text-to-speech, tts; When you need a pure Java-based solution for integrating TTS in your software projects. ### When should I avoid ChatTTS? Avoid using ChatTTS in environments where the speech generation model is expected to handle complex technical jargon or specialized vocabulary, as it's optimized for daily conversation. Do not use ChatTTS if your project requires the integration of more than two languages simultaneously due to its current support for only Chinese and English. ### When should I avoid marytts? If real-time performance is critical, as MaryTTS may not be optimized for such use-cases. When looking for a cloud-hosted service, as MaryTTS requires local deployment. ### Is ChatTTS or marytts more popular on GitHub? ChatTTS has more GitHub stars (39,768 vs 2,582). Stars measure visibility, not whether either tool fits your constraints. ### Are ChatTTS and marytts open source? Yes - both are open-source projects on GitHub (ChatTTS: AGPL-3.0, marytts: Other). ### Where can I find alternatives to ChatTTS or marytts? GraphCanon lists graph-backed alternatives at [ChatTTS alternatives](/tools/2noise-chattts/alternatives) and [marytts alternatives](/tools/marytts-marytts/alternatives) ([ChatTTS markdown twin](/tools/2noise-chattts/alternatives.md), [marytts markdown twin](/tools/marytts-marytts/alternatives.md)), ranked by typed relationship edges rather than popularity votes. ### Is there a machine-readable version of this comparison? Yes. The markdown twin at [this comparison](/compare/2noise-chattts-vs-marytts-marytts.md) mirrors this page for agents and LLM crawlers, with the same stats table and FAQ answers. ### Which is better maintained, ChatTTS or marytts? ChatTTS: Slowing. marytts: Dormant. Compare maintenance labels, days since push, and release cadence in the trust section below - stars alone do not measure maintenance. ### Where are the full trust reports for ChatTTS and marytts? GraphCanon publishes per-repo trust reports with dated maintenance, provenance, and scan summaries: [ChatTTS trust report](/tools/2noise-chattts/trust); [marytts trust report](/tools/marytts-marytts/trust). --- **Machine-readable endpoints** - JSON: [`/api/graphcanon/graph?tool=2noise-chattts`](/api/graphcanon/graph?tool=2noise-chattts) - LLM index: [/llms.txt](/llms.txt) - Full corpus: [/llms-full.txt](/llms-full.txt) _GraphCanon - The knowledge graph for AI development. https://www.graphcanon.com/_