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  5. Private Transcription

Private Transcription

Transcribe audio to text using on-device AI - your files never leave your browser

How does this work? Is it really private?
Your Device
Audio file stays here
Your Browser
AI runs locally
Transcript
Never leaves browser
No upload — Audio is processed locally using your browser's Web Audio API
No server — AI model runs in a Web Worker thread in your browser
No account — No sign-up, no tracking, no data collection
Open source — Model from Hugging Face, code inspectable in DevTools

One-time download: The AI model (~50-75MB) is downloaded once and cached in your browser.

Works offline: After the initial download, transcription works without internet.

You control your data: Clear the cache anytime to remove all stored model data.

Drop audio file here

or click to browse

MP3, WAV, M4A, OGG, WebM, MP4 • Max 10 minutes

Related Tools

  • Word Counter - analyze transcripts
  • AI Text Cleaner - clean transcript text
  • Readability Score - check readability
  • Token Counter - count tokens for AI

How to Use Private Transcription

  1. 1

    Download the AI model

    Select your preferred model (Moonshine or Whisper) and click Download. This is a one-time download that enables offline use.

  2. 2

    Upload your audio file

    Drop or select an audio file (MP3, WAV, M4A, OGG, or WebM) up to 10 minutes long.

  3. 3

    Copy or download the transcript

    View your transcript as plain text or SRT subtitles, then copy to clipboard or download as a file.

Frequently Asked Questions

Yes, our Private Transcription tool is completely free to use with no limitations. Transcribe as many audio files as you need without any sign-ups, subscriptions, or hidden fees.

Absolutely. All transcription happens 100% in your browser using on-device AI. Your audio files are never uploaded to any server - they are processed entirely on your device using machine learning models that run locally. This makes it ideal for sensitive recordings like meetings, interviews, or personal voice notes.

The tool supports MP3, WAV, M4A (AAC), OGG, and WebM audio formats. Maximum audio length is 10 minutes. For longer recordings, you can split them into smaller segments before transcribing.

The AI model (about 50-75MB) needs to be downloaded once to your browser. This enables fully private, offline transcription since the model runs locally on your device. The model is cached in your browser, so future visits will load instantly without re-downloading.

Moonshine Tiny is optimized for speed, running about 5x faster than Whisper while producing good results for clear audio. Whisper Tiny is more accurate, especially for accented speech or noisy recordings, but takes longer to process. Choose Moonshine for quick transcriptions of clear audio, and Whisper for challenging audio.