About Piper TTS
Piper is a fast, local neural text-to-speech system optimized for Raspberry Pi and other edge devices. It uses VITS-based models that have been trained on high-quality voice recordings, delivering natural-sounding speech with minimal computational requirements. Piper is perfect for applications requiring real-time speech synthesis without cloud dependencies.
Key Features
Ultra-Fast Synthesis
Generates speech in real-time, even on low-power devices like Raspberry Pi.
CPU-Optimized
Runs efficiently on CPU without requiring expensive GPU hardware.
20+ Languages
Supports over 20 languages with native-quality pronunciation.
Offline Operation
Works completely offline with no internet connection required.
Privacy-First
All processing happens locally - your text never leaves your device.
Open Source
Fully open-source under MIT license with active community development.
Use Cases
Piper TTS Voices
View All 101Alan (Fast) (UK English)
EN_GBAlan (UK English)
EN_GBAlba (UK English)
EN_GBAlejandro (Spanish (Mexico))
ES_MXAmir (Persian)
FA_IRAmy (Fast) (US English)
EN_USAmy (US English)
ENAnders (Danish)
DA_DKAnna (Hungarian)
HU_HUArctic (US English)
EN_USArthur (UK English)
EN_GBArtur (Slovenian)
SL_SIHow to Use Piper TTS
-
1
Sign up free or open the demo
Create a free TextToSpeechAI account to receive starter credits, or use the on-page demo to try Piper instantly without signing in.
-
2
Choose a Piper voice
Open the voice library and filter by the Piper engine, then preview voices across your target language and accent to find the right one.
-
3
Enter or paste your text
Type or paste the script you want spoken into the text box. Piper handles punctuation and longer passages well, so you can drop in full paragraphs.
-
4
Adjust speed and generate
Set the speaking speed (roughly 0.5x to 2.0x) to suit your project, then click generate to have Piper synthesize the audio in seconds on CPU.
-
5
Download the audio or call the API
Download your clip as MP3, WAV, or OGG from the result panel, or automate it by sending the same Piper voice slug to the /v1/generate/ REST endpoint.
Piper TTS API
Generate speech programmatically using the TextToSpeechAI REST API.
curl -X POST "https://api.texttospeechai.com/v1/generate/" \
-H "Authorization: Bearer YOUR_API_TOKEN" \
-H "Content-Type: application/json" \
-d '{
"text": "Welcome to Piper, a fast and lightweight neural text\u002Dto\u002Dspeech engine.",
"voice": "en_GB-alan-low"
}'
Frequently Asked Questions
Technical Specs
- Generation Speed Very Fast
- Output Quality Good
- Voice Cloning Not Supported
- Languages 20
- GPU VRAM 500MB
- Credits/1000 chars 10