言語

音声 URL をテキストに文字起こし

無料の URL テキスト化 — 音声リンクを貼り付け、ブラウザでプライベートに文字起こし。文字起こし用のアップロードは不要。

Whisper AI の無料文字起こしを使う理由

100% free in the browser

No subscription for this tool. Transcribe audio, voice, or URLs with OpenAI Whisper models running client-side.

Private by design

Your audio is not uploaded to our servers for transcription. Processing stays on your device in a Web Worker.

No sign-up required

Start immediately — no account, no API key. Ideal for one-off files, quick memos, or trying speech-to-text privately.

無料ブラウザ文字起こしの仕組み

Three steps from audio to text — all local after the model loads.

01

Add your audio

Upload a file, record with your mic, or paste an audio URL — depending on which free tool you use.

02

Choose language & model

Pick source language and a Whisper model size. Quantized models load faster on most devices.

03

Copy or export

Read the transcript on the page, copy to clipboard, or export TXT / JSON — your text, your workflow.

音声 URL をテキストに文字起こし

Transcribing audio from a podcast URL

Remote podcast & media links

Transcribe audio hosted on a public URL without downloading desktop apps or paying per minute on a cloud service.

Loading audio from a shared link for transcription

Shared drive & CDN files

Paste a direct link to MP3 or WAV files from storage or CDNs — load in the browser, then run private local transcription.

Archivist transcribing audio from a web link

Archives & compliance

Turn linked recordings into text for search and review while keeping the transcription step on the user’s device.

無料でプライベートな文字起こし

Built for people who cannot send sensitive audio to the cloud.

  • Transcription runs in your browser via a Web Worker — not on Whisper AI servers.
  • Audio files are not uploaded for the speech-to-text step on these free tool pages.
  • Model weights may cache in your browser after the first load for faster repeat use.
  • For how we handle site data overall, see our . プライバシーポリシー
無料でプライベートな文字起こし

音声 URL をテキストに文字起こし FAQ

Why might an audio URL fail to load?

The host must allow your browser to fetch the file (CORS). If loading fails, download the file and use our free audio to text upload instead.

Is the audio URL uploaded to Whisper AI for transcription?

The browser fetches the file from the link you provide. Transcription itself runs locally — we do not receive your audio for the speech-to-text step.

What links work best?

Direct links to audio files (for example .mp3 or .wav) work best. Pages that require login or return HTML instead of audio may not load.

Is URL to text free without registration?

Yes. Paste a URL, load audio, and transcribe in the browser — no account required for this free tool.

Is this transcription tool really free?

Yes. These pages are free to use with no paywall for local browser transcription. Optional paid plans apply to the Chrome extension and cloud features, not this on-page Whisper tool.

Is my audio private when I transcribe here?

For these free tools, speech-to-text runs locally in your browser. We do not upload your audio to our servers for transcription. URL mode fetches the file from the link you paste; that request goes from your browser to the host.