Audio Tools
Speech to Text
Transcribe spoken words to text in real-time using your browser's speech recognition.
Your files stay on your device - processed locally via WebAssembly, never uploaded
Transcript
Privacy Note
Chrome / Edge: Audio is sent to Google servers for processing.
Safari: Speech recognition is processed on-device by Apple.
Firefox: Limited support. Some versions may not support this API.
Speech recognition is powered by your browser's built-in speech engine. OptiPix does not store any recordings.
Embed this tool on your website
Copy this code to add the Speech to Text to your site for free. It runs entirely in your visitors' browsers - no API key, no usage limits.
<iframe src="https://optipix.art/embed/speech-to-text" width="100%" height="600" style="border:1px solid #e4e4e7;border-radius:8px;" title="Speech to Text by OptiPix" loading="lazy"></iframe> <p style="font-size:12px">Free tool by <a href="https://optipix.art/speech-to-text">OptiPix Speech to Text</a></p>
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About Speech to Text
Last updated: May 2026
OptiPix 语音转文字使用 Web Speech Recognition API 将口语实时转换为书面文字。点击“开始聆听”即可开始从麦克风进行实时转录。支持 50 多种语言。连续模式会一直监听直到您停止。临时结果以灰色显示，最终结果以黑色显示。您可以编辑文本、复制到剪贴板或下载为 .txt 文件。Chrome 会将音频发送到 Google 进行处理；Safari 会在设备上进行处理，以最大限度地保护隐私。
How It Works
该工具使用 Web Speech Recognition API (SpeechRecognition/webkitSpeechRecognition)。它会捕获麦克风的音频，将其发送到浏览器的语音识别引擎，并返回带有临时和最终结果的转录文本。
Use Cases
- •转录会议和讲座
- •听写笔记和文档
- •从口语内容创建字幕
- •方便行动不便的用户使用
- •快速语音转文本输入
You Might Also Like
If you find Speech to Text useful, check out these related tools: Text to Speech, Audio Recorder, and Word Counter. 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
它是如何工作的？
支持哪些语言？
准确吗？
我的语音是私密的吗？
我可以转录音频文件吗？
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