By VestraCode, the developer of ReadMe.
Offline TTS Models for Android EPUB Reading | ReadMe
ReadMe by VestraCode is an EPUB and PDF reader with offline text-to-speech for Android. Download Supertonic 3 directly in the app or import a compatible Piper, Kitten, Kokoro, Matcha or VITS model to listen with local neural voices.
OFFLINE NEURAL TEXT-TO-SPEECH FOR EBOOKS
Choose a local voice that fits your book and device
ReadMe combines EPUB and PDF reading with configurable text-to-speech on Android. Its ReadMe Local TTS workflow supports compatible sherpa-onnx neural model packages, so downloaded voices can synthesize supported book text on the device without a permanent internet connection.
Supertonic 3 in the app
Download the multilingual model directly from ReadMe, then choose from 10 speaker IDs.
Piper voice choice
Import a compatible Piper voice for fast local narration in its supported language and accent.
More neural families
Compatible Matcha, Kitten, Kokoro and VITS/Inflect packages expand the available local choices.
Supertonic 3 at a glance
Languages31 supported languages
Speakers10 speaker IDs (0-9)
Sample rate24 kHz
ProcessingLocal and offline after download
InstallationDownloadable directly inside ReadMe
Reading formatsTTS for supported EPUB and text-based PDF content
Supertonic 3 is the easiest place to start
Supertonic 3 is ReadMe's featured local neural TTS model. Instead of searching for separate voice archives, you can download its optional module directly in the app, select a supported language and try one of its 10 speaker IDs. Once installed, speech generation runs locally for offline listening.
The official sherpa-onnx model page lists 31 languages, 10 speakers and a 24 kHz sample rate. The same multilingual package covers the supported languages below. Open the Supertonic 3 model page and voice samples.
ReadMe also lets you adjust the narration speed and continue supported playback with the screen off, making it useful as an offline EPUB reader with text-to-speech for walks, commutes and hands-free listening at home.
Choose a language and explore offline TTS models
Select a language to see the main compatible model families. Supertonic 3 is the easiest multilingual starting point in ReadMe; the complete sherpa-onnx catalog link shows every currently published option for the selected language.
Multilingual neural TTSSupertonic 3
Open the complete English model catalog The recommended multilingual module available for direct download inside ReadMe.
View model details Fast language-specific voicesPiperA broad catalog of efficient British and American English voices in multiple quality variants.
View model details Compact English neural TTSKittenNano, micro and mini model sizes with published FP16, FP32 and INT8 variants.
View model details English neural TTSKokoroAn alternative compatible neural voice family for fully local speech synthesis.
View model details Matcha / IcefallMatchaAn LJSpeech-based English model available for compatible local import.
View model details Compact English TTSVITS / InflectNano and micro VITS/Inflect packages provide additional lightweight English options.
View model detailsMultilingual neural TTSSupertonic 3
Open the complete Korean model catalog Korean is included in the 31-language Supertonic 3 module available for direct download in ReadMe.
View model details Official sherpa-onnx catalogAdditional language-specific modelsOpen the Korean catalog to check the currently published Piper, VITS or other model families and quality variants available for local import.
View model detailsMultilingual neural TTSSupertonic 3
Open the complete Japanese model catalog Japanese is included in the 31-language Supertonic 3 module available for direct download in ReadMe.
View model details Official sherpa-onnx catalogAdditional language-specific modelsOpen the Japanese catalog to check the currently published Piper, VITS or other model families and quality variants available for local import.
View model detailsMultilingual neural TTSSupertonic 3
Open the complete Arabic model catalog Arabic is included in the 31-language Supertonic 3 module available for direct download in ReadMe.
View model details Official sherpa-onnx catalogAdditional language-specific modelsOpen the Arabic catalog to check the currently published Piper, VITS or other model families and quality variants available for local import.
View model detailsMultilingual neural TTSSupertonic 3
Open the complete Bulgarian model catalog Bulgarian is included in the 31-language Supertonic 3 module available for direct download in ReadMe.
View model details Official sherpa-onnx catalogAdditional language-specific modelsOpen the Bulgarian catalog to check the currently published Piper, VITS or other model families and quality variants available for local import.
View model detailsMultilingual neural TTSSupertonic 3
Open the complete Czech model catalog Czech is included in the 31-language Supertonic 3 module available for direct download in ReadMe.
View model details Official sherpa-onnx catalogAdditional language-specific modelsOpen the Czech catalog to check the currently published Piper, VITS or other model families and quality variants available for local import.
View model detailsMultilingual neural TTSSupertonic 3
Open the complete Danish model catalog Danish is included in the 31-language Supertonic 3 module available for direct download in ReadMe.
View model details Official sherpa-onnx catalogAdditional language-specific modelsOpen the Danish catalog to check the currently published Piper, VITS or other model families and quality variants available for local import.
View model detailsMultilingual neural TTSSupertonic 3
Open the complete German model catalog German is included in the 31-language Supertonic 3 module available for direct download in ReadMe.
View model details Official sherpa-onnx catalogAdditional language-specific modelsOpen the German catalog to check the currently published Piper, VITS or other model families and quality variants available for local import.
View model detailsMultilingual neural TTSSupertonic 3
Open the complete Greek model catalog Greek is included in the 31-language Supertonic 3 module available for direct download in ReadMe.
View model details Official sherpa-onnx catalogAdditional language-specific modelsOpen the Greek catalog to check the currently published Piper, VITS or other model families and quality variants available for local import.
View model detailsMultilingual neural TTSSupertonic 3
Open the complete Spanish model catalog Spanish is included in the 31-language Supertonic 3 module available for direct download in ReadMe.
View model details Official sherpa-onnx catalogAdditional language-specific modelsOpen the Spanish catalog to check the currently published Piper, VITS or other model families and quality variants available for local import.
View model detailsMultilingual neural TTSSupertonic 3
Open the complete Estonian model catalog Estonian is included in the 31-language Supertonic 3 module available for direct download in ReadMe.
View model details Official sherpa-onnx catalogAdditional language-specific modelsOpen the Estonian catalog to check the currently published Piper, VITS or other model families and quality variants available for local import.
View model detailsMultilingual neural TTSSupertonic 3
Open the complete Finnish model catalog Finnish is included in the 31-language Supertonic 3 module available for direct download in ReadMe.
View model details Official sherpa-onnx catalogAdditional language-specific modelsOpen the Finnish catalog to check the currently published Piper, VITS or other model families and quality variants available for local import.
View model detailsMultilingual neural TTSSupertonic 3
Open the complete French model catalog French is included in the 31-language Supertonic 3 module available for direct download in ReadMe.
View model details Official sherpa-onnx catalogAdditional language-specific modelsOpen the French catalog to check the currently published Piper, VITS or other model families and quality variants available for local import.
View model detailsMultilingual neural TTSSupertonic 3
Open the complete Hindi model catalog Hindi is included in the 31-language Supertonic 3 module available for direct download in ReadMe.
View model details Official sherpa-onnx catalogAdditional language-specific modelsOpen the Hindi catalog to check the currently published Piper, VITS or other model families and quality variants available for local import.
View model detailsMultilingual neural TTSSupertonic 3
Open the complete Croatian model catalog Croatian is included in the 31-language Supertonic 3 module available for direct download in ReadMe.
View model details Official sherpa-onnx catalogAdditional language-specific modelsOpen the Croatian catalog to check the currently published Piper, VITS or other model families and quality variants available for local import.
View model detailsMultilingual neural TTSSupertonic 3
Open the complete Hungarian model catalog Hungarian is included in the 31-language Supertonic 3 module available for direct download in ReadMe.
View model details Official sherpa-onnx catalogAdditional language-specific modelsOpen the Hungarian catalog to check the currently published Piper, VITS or other model families and quality variants available for local import.
View model detailsMultilingual neural TTSSupertonic 3
Open the complete Indonesian model catalog Indonesian is included in the 31-language Supertonic 3 module available for direct download in ReadMe.
View model details Official sherpa-onnx catalogAdditional language-specific modelsOpen the Indonesian catalog to check the currently published Piper, VITS or other model families and quality variants available for local import.
View model detailsMultilingual neural TTSSupertonic 3
Open the complete Italian model catalog Italian is included in the 31-language Supertonic 3 module available for direct download in ReadMe.
View model details Official sherpa-onnx catalogAdditional language-specific modelsOpen the Italian catalog to check the currently published Piper, VITS or other model families and quality variants available for local import.
View model detailsMultilingual neural TTSSupertonic 3
Open the complete Lithuanian model catalog Lithuanian is included in the 31-language Supertonic 3 module available for direct download in ReadMe.
View model details Official sherpa-onnx catalogAdditional language-specific modelsOpen the Lithuanian catalog to check the currently published Piper, VITS or other model families and quality variants available for local import.
View model detailsMultilingual neural TTSSupertonic 3
Open the complete Latvian model catalog Latvian is included in the 31-language Supertonic 3 module available for direct download in ReadMe.
View model details Official sherpa-onnx catalogAdditional language-specific modelsOpen the Latvian catalog to check the currently published Piper, VITS or other model families and quality variants available for local import.
View model detailsMultilingual neural TTSSupertonic 3
Open the complete Dutch model catalog Dutch is included in the 31-language Supertonic 3 module available for direct download in ReadMe.
View model details Official sherpa-onnx catalogAdditional language-specific modelsOpen the Dutch catalog to check the currently published Piper, VITS or other model families and quality variants available for local import.
View model detailsMultilingual neural TTSSupertonic 3
Open the complete Polish model catalog Polish is included in the Supertonic 3 module available for direct download inside ReadMe.
View model details Fast language-specific TTSPiper Polish voicesThe Polish catalog contains multiple Piper voices and quality variants for compatible local import.
View model detailsMultilingual neural TTSSupertonic 3
Open the complete Portuguese model catalog Portuguese is included in the 31-language Supertonic 3 module available for direct download in ReadMe.
View model details Official sherpa-onnx catalogAdditional language-specific modelsOpen the Portuguese catalog to check the currently published Piper, VITS or other model families and quality variants available for local import.
View model detailsMultilingual neural TTSSupertonic 3
Open the complete Romanian model catalog Romanian is included in the 31-language Supertonic 3 module available for direct download in ReadMe.
View model details Official sherpa-onnx catalogAdditional language-specific modelsOpen the Romanian catalog to check the currently published Piper, VITS or other model families and quality variants available for local import.
View model detailsMultilingual neural TTSSupertonic 3
Open the complete Russian model catalog Russian is included in the 31-language Supertonic 3 module available for direct download in ReadMe.
View model details Official sherpa-onnx catalogAdditional language-specific modelsOpen the Russian catalog to check the currently published Piper, VITS or other model families and quality variants available for local import.
View model detailsMultilingual neural TTSSupertonic 3
Open the complete Slovak model catalog Slovak is included in the 31-language Supertonic 3 module available for direct download in ReadMe.
View model details Official sherpa-onnx catalogAdditional language-specific modelsOpen the Slovak catalog to check the currently published Piper, VITS or other model families and quality variants available for local import.
View model detailsMultilingual neural TTSSupertonic 3
Open the complete Slovenian model catalog Slovenian is included in the 31-language Supertonic 3 module available for direct download in ReadMe.
View model details Official sherpa-onnx catalogAdditional language-specific modelsOpen the Slovenian catalog to check the currently published Piper, VITS or other model families and quality variants available for local import.
View model detailsMultilingual neural TTSSupertonic 3
Open the complete Swedish model catalog Swedish is included in the 31-language Supertonic 3 module available for direct download in ReadMe.
View model details Official sherpa-onnx catalogAdditional language-specific modelsOpen the Swedish catalog to check the currently published Piper, VITS or other model families and quality variants available for local import.
View model detailsMultilingual neural TTSSupertonic 3
Open the complete Turkish model catalog Turkish is included in the 31-language Supertonic 3 module available for direct download in ReadMe.
View model details Official sherpa-onnx catalogAdditional language-specific modelsOpen the Turkish catalog to check the currently published Piper, VITS or other model families and quality variants available for local import.
View model detailsMultilingual neural TTSSupertonic 3
Open the complete Ukrainian model catalog Ukrainian is included in the 31-language Supertonic 3 module available for direct download in ReadMe.
View model details Official sherpa-onnx catalogAdditional language-specific modelsOpen the Ukrainian catalog to check the currently published Piper, VITS or other model families and quality variants available for local import.
View model detailsMultilingual neural TTSSupertonic 3
Open the complete Vietnamese model catalog Vietnamese is included in the 31-language Supertonic 3 module available for direct download in ReadMe.
View model details Official sherpa-onnx catalogAdditional language-specific modelsOpen the Vietnamese catalog to check the currently published Piper, VITS or other model families and quality variants available for local import.
View model detailsHow to use an offline model in ReadMe
01
Choose the installation path
Download Supertonic 3 inside ReadMe, or obtain another compatible package from its official sherpa-onnx model page.
02
Install or import the model
Install the in-app module or import the compatible local archive from your Android device.
03
Select language and voice
Choose the installed model, its supported language and an available speaker, then test a short passage.
04
Listen offline
Open a supported EPUB or text-based PDF, adjust speed and continue local playback without a permanent network connection.
Model compatibility and performance
ReadMe supports compatible offline sherpa-onnx TTS packages. Supertonic 3 is downloadable directly inside the app; other compatible models can be imported. Model size, synthesis speed, memory use, available speakers, language coverage and pronunciation depend on the selected package and Android device. Use the language badges above to see every model published for a language instead of relying only on the English examples.
An offline AI voice reader is still an ebook reader
A useful Android text-to-speech reader should do more than generate audio. ReadMe keeps the listening workflow beside chapter navigation, bookmarks, highlights, saved quotes, full-text search, reading progress, collections and favorites.
You can read an EPUB on screen, switch to a local neural voice, change the speaking speed and keep listening in the background. ReadMe also supports PDF, CBZ and CBR, while spoken PDF playback requires extractable text.
This combination makes ReadMe relevant when you need an EPUB reader with TTS, a PDF read-aloud app, a multilingual ebook reader or a way to turn supported files into locally generated spoken audio.
Can ReadMe read EPUB books aloud offline?
Yes. Install Supertonic 3 or another compatible local TTS package first, then ReadMe can synthesize supported EPUB text on the Android device without a permanent internet connection.
Which offline TTS model is easiest to install in ReadMe?
Supertonic 3 is downloadable directly inside ReadMe. It includes 31 supported languages and 10 speaker IDs in one multilingual package.
Does ReadMe support Piper voices?
Yes. Download a compatible Piper package for the required language or accent, import it into ReadMe Local TTS and test it with a familiar passage.
Can I use Kokoro, Kitten, Matcha or VITS models?
ReadMe supports compatible sherpa-onnx packages from these local neural TTS families. Use the linked official model page to obtain the package and import it into ReadMe.
Do all listed voices work without internet?
The listed local models synthesize offline after their files have been downloaded or imported. Downloading the package initially requires access to its source.
Can ReadMe read PDF files aloud?
ReadMe supports TTS for text-based PDFs when extractable text is available. Image-only scanned PDFs may require OCR before text can be spoken.
Where can I browse models for other languages?
Use the complete sherpa-onnx TTS catalog linked below. Each model page identifies its language, samples and download package.
Choose your ReadMe offline TTS setup
Start with the directly downloadable Supertonic 3 module for 31 languages and 10 speakers.
Use Piper when you want a specific efficient language, accent or published quality variant.
Explore compatible Kitten, Kokoro, Matcha and VITS/Inflect packages for additional English neural voices.
Test model speed and memory use on the Android device before committing to a long book.
Keep reading, library organization and offline spoken playback together in ReadMe.
Bring a local neural voice to your next book
