# Piper TTS: A fast, CPU-only neural TTS engine that runs offline

> Source: <https://tts.ai/voices/piper/>
> Published: 2026-10-24 16:33:11+00:00

# Piper TTS

A fast, CPU-only neural TTS engine from Rhasspy that runs entirely offline, even on a Raspberry Pi.

[Sign up](https://tts.ai/signup/)for 5,000 character limit

Wrap your text in SSML tags for precise control:

`<speak><prosody rate="slow">Slow speech</prosody></speak>`
Define custom pronunciations (word = pronunciation):

**Generation Failed**

[Commercial license from $5/mo](https://tts.ai/pricing/?ref=license-note)

[Get 200K characters every month — $5/mo](https://tts.ai/checkout/?plan=lite&ref=result)

[or a one-time 100K pack for $5](https://tts.ai/checkout/?plan=credits_small&ref=result)

[Clone a voice in 30 seconds](https://tts.ai/voice-cloning/)

## About Piper

Piper was built by the Rhasspy project to bring neural text-to-speech to edge devices that have no GPU. It pairs a VITS-style synthesizer with the Larynx pipeline and runs as a compact ~15M-parameter ONNX model directly on CPU, so synthesis happens locally with no cloud round-trip. Its strength is breadth and footprint: over 100 voices spanning 35+ languages at real-time speed on hardware as modest as a Pi 4. That makes it the practical default for home automation, accessibility readers, and offline kiosks where latency, privacy, and zero hosting cost matter more than studio polish.

**Best for:** Quick previews, accessibility, and embedded applications

[Browse all Piper voices](https://tts.ai/voices/?model=piper)

## At a glance

- Developer
- Rhasspy
- License
- MIT (engine); voice licenses vary
- Tier
- free
- Speed
- fast
- Voice cloning
- No
- Languages
- English, German, French, Spanish, Italian, Portuguese, Dutch, Polish, Russian, Chinese, Arabic, Czech, Danish, Finnish, Greek, Hungarian, Icelandic, Georgian, Kazakh, Nepali, Norwegian, Romanian, Slovak, Serbian, Swedish, Swahili, Turkish, Ukrainian, Vietnamese, CA, CY, FA, Latvian, Slovenian, LB, Basque, Indonesian, Kurdish, Malayalam, Albanian, Telugu, Urdu
- Max characters
- 2000

## Piper voices

### Aegis (Urdu)

Urdu
### Aivars (Latvian)

Latvian
### Alan (UK)

English
### Alba (UK)

English
### Amir (Persian)

fa
### Amy (US)

English
### Anna (Hungarian)

Hungarian
### Antton (Basque)

Basque
### Artur (Slovenian)

Slovenian
### Berfin (Kurdish)

Kurdish
### DFKI (Turkish)

Turkish
### Darkman (Polish)

Polish
### Denis (Russian)

Russian
### Dutch (MLS)

Dutch
### Edon (Albanian)

Albanian
### Faber (Portuguese)

Portuguese
### Fasih (Urdu)

Urdu
### Google (Nepali)

Nepali
### Gor (Armenian)

hy
### Gwryw (Welsh)

cy
### Harri (Finnish)

Finnish
### Huayan (Chinese)

Chinese
### Issai (Kazakh)

Kazakh
### Jenny (UK)

English
### Jirka (Czech)

Czech
### Joe (US)

English
### Kareem (Arabic)

Arabic
### Lada (Ukrainian)

Ukrainian
### Lanfrica (Swahili)

Swahili
### Lessac (US)

English
### Lili (Slovak)

Slovak
### Maider (Basque)

Basque
### Marylux (Luxembourgish)

lb
### Mihai (Romanian)

Romanian
### NST (Swedish)

Swedish
### Natia (Georgian)

Georgian
### News (Indonesian)

Indonesian
### Ona (Catalan)

ca
### Rapunzelina (Greek)

Greek
### Riccardo (Italian)

Italian
### Ryan (US)

English
### Salka (Icelandic)

Icelandic
### Serbian Institute

Serbian
### Sharvard (Spanish)

Spanish
### Siwis (French)

French
### Tale (Danish)

Danish
### Tale (Norwegian)

Norwegian
### Thorsten (German)

German
### VIVOS (Vietnamese)

Vietnamese
## Piper TTS — FAQ

[← All voices](https://tts.ai/voices/)