Text to Speech — Generated On Your Device, Downloadable as WAV

Turn text into natural speech with a neural voice running in your browser, and download the audio as a WAV file.

This tool synthesises speech from text using Kokoro, an 82-million-parameter neural voice model that runs in your browser on WebGPU or WebAssembly. Eleven American and British voices are available, speed is adjustable, and the result downloads as a standard WAV file. The text is never sent anywhere and the output has no watermark or usage limit.

Runs in your browser

Voices: 11 American and British, male and female
Output: WAV, 24 kHz — no watermark, no limit
Uploads: None — the text never leaves your device
Privacy: Runs entirely in your browser — nothing is uploaded
Cost: Free, unlimited, no sign-up

Frequently asked questions

How does this compare with the browser's built-in speech synthesis?

The Web Speech API is instant and free but uses whatever voices the operating system ships, which vary wildly and generally sound robotic — and critically, it plays audio without giving you a file. This produces a downloadable WAV from a neural model, which is what you need for a video, a podcast or a voiceover.

Can I use the audio commercially?

The Kokoro model is released under Apache 2.0, which permits commercial use. Check the model card yourself before shipping something that depends on it — licences change and you should not take a tool page's word for it.

Why is there a length limit?

Synthesis time scales with text length and it all happens on your device. Eight thousand characters is a few minutes of speech and a reasonable single run; beyond that a browser tab is the wrong place for the job.

How to use the ai text to speech

1Enter or paste your text.
2Choose the voice.
3Set the speed.
4Press Run, then download the result when it is ready.

Sources & specifications

Kokoro-82M model cardhexgrad

Embed this tool

Put the working ai text to speech on your own site. It runs in your visitors' browsers exactly as it does here — free, no account, nothing uploaded.

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Last updated 1 Aug 2026