Free Online Speech to Text (Live Transcription)

Transcribe your voice to text live - 40+ languages, free, in-browser

🔒 100% ブラウザ内🆓 ずっと無料⚡ サインアップ不要
注意: 下記のツールインターフェースは現時点で英語のみに対応しています。UI の翻訳は順次進めています。 このツールを英語で見る →
Transcribed text will appear here…

使い方

  1. 1
    Pick your language

    Choose from 40+ languages and regional variants.

  2. 2
    Click the microphone

    Grant mic permission - transcription begins as you speak.

  3. 3
    Copy or export

    Copy the transcript, or clear and start a fresh session.

Free Online Speech to Text (Live Transcription) について

Free online speech-to-text transcription. Click the mic and start talking - words appear live on screen in your chosen language. Supports 40+ languages, auto-punctuation where the engine provides it, and one-click copy. Uses the browser's Web Speech API. 712 Tools の Free Online Speech to Text (Live Transcription) はモダンな JavaScript API を使って完全にブラウザ内で動作します - サーバーがあなたのデータを見ることは一切ありません。つまり、即時の結果、完全なプライバシー、アップロード制限なしです。

デバッグ、簡単な確認、あるいは本番のインシデント対応まで - このツールは何度でも無料で使えます。ウォーターマークなし、サインアップなし、ツール内広告なし。

よくある質問

How accurate is it?

Modern browsers use cloud-backed recognition (Google, Apple, Microsoft) and reach 90–95% accuracy in clean audio with a good microphone. Noisy rooms, accents, and jargon reduce accuracy.

Which browsers work?

Chrome, Edge, Safari, and Opera support the Web Speech Recognition API. Firefox currently does not - use one of the others.

Is my audio sent to a server?

The Web Speech API in most browsers streams audio to the browser vendor's recognition service (e.g. Google for Chrome). No third-party server is involved - the audio doesn't touch 712tools.com.

Can I transcribe an existing audio file?

The Web Speech API only takes live mic input. For file transcription, play the file back into your mic (or use a virtual audio device) - or use a dedicated transcription service.

続きを読む

5 分で読了

Text-to-speech and speech-to-text in the browser (Web Speech API in 2026)

The Web Speech API turns any browser into a TTS engine and a live-transcription client. Here's what actually works, what's still broken, and when to pay for ElevenLabs.

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