Language Support
TTS Buddy is designed for a global audience with 300+ text-to-speech voices, 30+ language modes, and a dashboard interface available in 6 languages.
TTS Languages
Generate natural-sounding audio with Kokoro native voices plus Supertonic Fast voices across 30+ language modes. The current public catalog includes these TTS language modes:
| Code | Language | Providers |
|---|---|---|
en / a | American English | Supertonic Fast, Kokoro |
b | British English | Kokoro |
ar | Arabic | Supertonic Fast |
bg | Bulgarian | Supertonic Fast |
hr | Croatian | Supertonic Fast |
cs | Czech | Supertonic Fast |
da | Danish | Supertonic Fast |
nl | Dutch | Supertonic Fast |
et | Estonian | Supertonic Fast |
fi | Finnish | Supertonic Fast |
fr / f | French | Supertonic Fast, Kokoro |
de | German | Supertonic Fast |
el | Greek | Supertonic Fast |
hi / h | Hindi | Supertonic Fast, Kokoro |
hu | Hungarian | Supertonic Fast |
id | Indonesian | Supertonic Fast |
it / i | Italian | Supertonic Fast, Kokoro |
ja / j | Japanese | Supertonic Fast, Kokoro |
ko | Korean | Supertonic Fast |
lv | Latvian | Supertonic Fast |
lt | Lithuanian | Supertonic Fast |
pl | Polish | Supertonic Fast |
pt / p | Portuguese | Supertonic Fast, Kokoro |
ro | Romanian | Supertonic Fast |
ru | Russian | Supertonic Fast |
sk | Slovak | Supertonic Fast |
sl | Slovenian | Supertonic Fast |
es / e | Spanish | Supertonic Fast, Kokoro |
sv | Swedish | Supertonic Fast |
tr | Turkish | Supertonic Fast |
uk | Ukrainian | Supertonic Fast |
vi | Vietnamese | Supertonic Fast |
z | Chinese | Kokoro |
Supertonic Fast voices use standard language codes such as fr, de, ja, ko, and ar. Kokoro voices use their compact provider codes such as f, j, and z; the app and CLI resolve those codes for you.
Voice Coverage
Kokoro native voices are available in these established language groups, and Supertonic Fast adds 10 native-named styles to every Supertonic language mode listed above:
| Language | Voices | Voice Names |
|---|---|---|
| Supertonic Fast | 10 styles per language | Native names per language, backed by stable IDs st_m1-st_m5 and st_f1-st_f5 |
| American English | 20 | Madison, Sophia, Zoe, Allie, Aria, Cora, Felix, Harper, Michael, Nova, Parker, Skye, Jessica, Logan, Mason, Nathan, Oscar, Riley, Samuel, Jackson |
| British English | 8 | Emma, Felix, George, Isabella, Alice, Daniel, Lewis, Lily |
| Spanish | 3 | Alejandro, Diego, Valentina |
| French | 1 | Camille |
| Hindi | 4 | Ananya, Arjun, Priya, Vikram |
| Italian | 2 | Giulia, Marco |
| Japanese | 5 | Akiko, Hiroshi, Mayumi, Sakura, Yuki |
| Portuguese | 3 | Gabriel, Isabela, Rafael |
| Chinese | 8 | Chen, Jun, Lei, Mei, Wei, Wen, Xin, Ying |
Total: 300+ voices across 30+ language modes.
See Voice Selection for the complete voice catalog with tiers and recommendations.
The Free plan supports up to 3 languages. Pro and Ultimate plans unlock all languages.
Interface Languages
The TTS Buddy dashboard interface is available in 6 languages:
| Language | Native Name |
|---|---|
| English | English |
| Spanish | Español |
| French | Français |
| Japanese | 日本語 |
| Portuguese | Português |
| Chinese | 中文 |
Changing the Interface Language
- Click the globe icon in the top navigation bar
- Choose your preferred language from the dropdown
- The entire dashboard updates immediately — all buttons, labels, menus, and messages
- Your preference is saved for future visits
Tips for Best Results
Matching Language and Voice
- Select the right voice — Choose a voice that matches the language of your source text for the most natural results
- One language per file — For best quality, avoid mixing multiple languages in a single generation
- Use Fast voices for speed — Supertonic voices show native names in each language while keeping stable
st_*API IDs - Use Premium voices for quality — Madison and Sophia (American English) deliver the richest intonation
Accessibility
TTS Buddy's multilingual support helps make content accessible across language barriers. Use the interface in your preferred language while generating audio in any supported TTS language mode.
Documentation Languages
This documentation site is also available in all 6 supported interface languages. Use the language dropdown in the top navigation to switch.