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Lightweight text-to-speech that runs on almost any device. No GPU needed, no signup, completely private.

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Why Pocket TTS

Why Use Pocket TTS

Pocket TTS is an open-source, MIT-licensed text-to-speech model by Kyutai Labs. With roughly 100 million parameters and a Continuous Audio Language Model (CALM) architecture, it was designed from the ground up to run on CPU faster than real-time.

It ships with built-in preset voices in a package that weighs just 148 MB as an INT8-quantized ONNX model.

CPU-Optimized

Designed to run faster than real-time on CPU. No GPU required, making it accessible on virtually any device.

Cloud Voice Cloning

Want to clone a voice? Voice cloning is part of Voice Creator Pro Cloud, with a free plan of 5,000 tokens every month.

Built-in Voices

Preset voices available for quick text-to-speech without needing to provide a reference audio sample.

Lightweight

Only 148 MB as an INT8-quantized ONNX model. Loads fast and runs efficiently in your browser.

Get Started

How It Works

For text-to-speech: Pick a built-in voice, type your text, and generate.

1

Open the free tool

Go to the Pocket TTS tool in your browser and pick a built-in voice. No download or signup required.

2

Type your text

Enter the text you want spoken. Pocket TTS supports English text input.

3

Generate and download

Hit generate and your audio is ready in seconds. Adjust LSD steps if you want to fine-tune the quality-speed tradeoff.

Use Cases

Who Is Pocket TTS For?

Developers

Build voice features for edge and embedded applications. Pocket TTS is small enough to deploy on resource-constrained devices and fast enough to run in real-time on CPU.

Content Creators

Generate voiceovers for videos, podcasts, or social media content. Built-in voices deliver quick, consistent narration.

Privacy-Conscious Users

Everything runs locally in your browser. No audio is uploaded to any server, no account is required, and no data leaves your device.

Hobbyists and Makers

Experiment with text-to-speech in a lightweight, MIT-licensed model. Perfect for personal projects, learning, and prototyping.

Getting the Most Out of Pocket TTS

Tips for Best Results

Short sentences sound most natural

Pocket TTS handles conversational, sentence-length text best. Break very long passages into paragraphs for more natural pacing.

Adjust LSD steps for your needs

Higher LSD steps produce better quality audio but take longer to generate. Lower steps are faster but may reduce fidelity. Start around 5 and adjust from there.

Built-in voices are great for quick TTS

If you just need fast text-to-speech without voice cloning, the built-in preset voices deliver consistent results with no setup required.

Voice Creator Pro

Need more power? Try Voice Creator Pro.

Voice Creator Pro gives you higher quality models, voice cloning in 600+ languages, emotional speech, and a commercial use license. The Cloud free plan includes 1 hour 45 minutes of text to speech with basic voices or 10 minutes of voice cloning every month, no card required.

No GPU Required

Generation runs on our hardware, so it works on any laptop, tablet, or phone

Voice Cloning in 600+ Languages

Combine multiple open-source models for TTS and voice cloning across 600+ languages

Voice Design from Text

Describe a voice in plain text and the AI creates it. No audio samples needed

Emotional Speech

13 emotions at 5 intensities with Qwen3-TTS

Commercial License

Full rights to use generated audio in commercial projects

Multiple Models in One Place

Switch between OmniVoice, Qwen3-TTS, VoxCPM2, Kokoro, and more without changing tools

FAQ

Common Questions

Pocket TTS is a lightweight text-to-speech model created by Kyutai Labs. It uses a Continuous Audio Language Model (CALM) architecture with roughly 100 million parameters, making it small enough to run on CPU faster than real-time. It supports both built-in preset voices and voice cloning from short audio samples.

Pocket TTS was developed by Kyutai Labs, a research organization focused on real-time AI communication. They released it under the MIT license, one of the most permissive open-source licenses available, so anyone can use, inspect, and build on it.

The Pocket TTS model supports voice cloning, but the free browser tool focuses on text-to-speech with its built-in voices. The cloud version of Voice Creator Pro includes voice cloning with a free plan of 5,000 tokens every month, up to 10 minutes of voice cloning.

CALM stands for Continuous Audio Language Model. It is the architecture used by Pocket TTS to generate speech. Unlike discrete-token approaches, CALM works with continuous audio representations, allowing the model to stay extremely compact while still producing natural-sounding speech.

Yes. Pocket TTS is open-source software released under the MIT license. On this site, text-to-speech with its built-in voices runs directly in your browser with no account, no signup, and no usage limits.

LSD steps control the quality of the generated audio. A higher number of steps produces better quality output but takes longer to generate. A lower number is faster but may sacrifice some audio fidelity. You can adjust this with a slider from 1 to 10 to find the right balance for your needs.

No. Pocket TTS was specifically designed to run on CPU faster than real-time. The INT8-quantized ONNX model is only about 148 MB, so it loads quickly and runs efficiently on virtually any modern device, including laptops, tablets, and phones.

Chrome, Edge, and other Chromium-based browsers work best. Firefox and Safari have limited support for some of the web features used for acceleration.