The work is executed in the page through browser workers, WebAssembly, Web Audio, or WebGPU as stated.
TTS / AVAILABLE NOW
Text to Speech
Turn writing into a local voice. Generate an English AI voice in your browser and download the result as MP3 or WAV.
TTS / local toolSpeech model loads on first generation
GUIDE / text to speech free
What does text to speech do?
Text to speech converts written words into a generated voice waveform. SoundTools divides English text into manageable sentence chunks, runs a pinned Kokoro q8 model inside your browser, joins the resulting audio locally, and lets you preview or download an MP3 or WAV without sending the text to a speech API.
RELATED USES
- AI text to speech
- text to voice AI free
- AI TTS generator
- text to speech MP3 download
FIELD NOTES / 01
A real local processor, not a decorative upload box
Pinned Kokoro 82M q8 through browser WASM runs after you choose a source and explicitly start the operation. The audio samples remain in browser memory; SoundTools does not send the selected media to an application endpoint.
Enter up to 1,000 English characters, choose MP3 or WAV, and start generation. The model downloads only on the first run and is cached by the browser. Results remain available for preview and download only in the current tab. Closing or refreshing the page releases those temporary objects.
PROCESS / THREE STEPS
How to use text to speech
- 01
Choose the local source
Open a compatible file in the dedicated workbench at the top of this page. The browser validates and decodes it without an upload step.
- 02
Set the useful controls
Enter up to 1,000 English characters, choose MP3 or WAV, and start generation. The model downloads only on the first run and is cached by the browser.
- 03
Process, check, and export
Run the local processor, inspect the status and preview, then save Generated MP3 · WAV when the result is ready.
SIGNAL NOTES / VERIFIED BEHAVIOR
What this tool actually does
Clear limits are part of a useful tool. These values describe the processor currently running in this page.
Runtime and model assets may be downloaded, but the selected file is not attached to those requests.
The dedicated workbench exposes only formats it can actually produce in the current browser.
USE CASES / 02
Useful reasons to open text to speech
- Accessibility draft
Create a downloadable reading of short English text.
- Video scratch narration
Generate a local placeholder voice for an edit or storyboard.
- Pronunciation preview
Listen to a short passage before recording it yourself.
QUESTIONS / PRACTICAL ANSWERS
Questions about this tool
Answers based on the current browser processor—not promises about a future version.
01Is my audio uploaded for processing?
No. Audio samples stay in browser memory. The page may download a codec or model asset, but it does not send the selected file with that request.
02Why can the first run take longer?
This tool uses Pinned Kokoro 82M q8 through browser WASM. A browser may need to download and initialize that runtime before the first operation; later runs can reuse cached assets.
03Can I preview the result before saving?
Yes. Audio-producing tools expose local result players, while analysis and transcription tools show their detected data before download.
04What happens when the browser is unsupported?
The workbench reports the missing capability instead of uploading the media or pretending that processing is still running.
05Can I download text to speech as MP3?
Yes. Choose MP3 before generation; SoundTools creates the voice locally as audio samples and runs a lightweight browser MP3 encoder before enabling the download.
06Can I upload a voice to clone it?
No. This tool uses one fixed model voice and does not accept or imitate a person’s voice.