Audio Tools
Text to Speech
Convert text to spoken audio using your browser's built-in speech synthesis engine.
Your files stay on your device - processed locally via WebAssembly, never uploaded
0 / 5,000 characters
First use downloads 63MB - after that it's cached forever.
How it works
100% on-device: Voice models are downloaded once, then cached in your browser's Origin Private File System. No text or audio is ever sent to any server.
Powered by Piper TTS - a fast neural TTS engine from the Rhasspy project. Voice models are open-source (MIT) and hosted on Hugging Face.
Works on every device: Chrome, Safari, Firefox, Edge - desktop and mobile. No microphone or special permissions required.
Your text is processed locally on your device. OptiPix never sees what you type.
Embed this tool on your website
Copy this code to add the Text to Speech to your site for free. It runs entirely in your visitors' browsers - no API key, no usage limits.
<iframe src="https://optipix.art/embed/text-to-speech" width="100%" height="600" style="border:1px solid #e4e4e7;border-radius:8px;" title="Text to Speech by OptiPix" loading="lazy"></iframe> <p style="font-size:12px">Free tool by <a href="https://optipix.art/text-to-speech">OptiPix Text to Speech</a></p>
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About Text to Speech
Last updated: May 2026
OptiPix 文本转语音使用浏览器内置的 Web Speech Synthesis API 将书面文本转换为语音音频。从按语言分组的所有可用系统语音中进行选择。调整语速（0.5倍至2倍）和音高。该工具会在朗读时突出显示当前单词。支持数十种语言，包括英语、西班牙语、法语、德语、日语、中文、印地语和阿拉伯语。大多数语音在设备上运行，无需网络调用。长文本会自动拆分成可管理的小块。
How It Works
该工具使用现代浏览器内置的 Web Speech Synthesis API (SpeechSynthesisUtterance)。它通过 speechSynthesis.getVoices() 查询可用语音，应用您的语速/音高设置，并以单词级高亮显示的方式朗读文本。
Use Cases
- •在多任务处理时朗读文章
- •通过听来校对写作
- •语言学习发音
- •为视障用户提供辅助功能
- •从书面文本创建音频内容
You Might Also Like
If you find Text to Speech useful, check out these related tools: Speech to Text, Word Counter, and Audio Recorder. All tools run entirely in your browser with no uploads or signups required.
Explore more: Browse all tools · Step-by-step guides · Tips & tutorials · Compare tools
Frequently Asked Questions
支持哪些语言？
我能控制语速吗？
这是在我的设备上处理的吗？
我可以下载音频吗？
有字符限制吗？
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