Interviews & journalism
Turn recorded interviews into searchable text without sending sensitive audio to a cloud API or waiting in a queue.
Transcribir audio a texto
Audio a texto gratis y privado en tu navegador: sube un archivo y transcribe localmente con Whisper. Sin subida al servidor.
¿Por qué usar la transcripción gratis de Whisper AI?
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.
Cómo funciona la transcripción gratuita en el navegador
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.
¿Por qué usar la transcripción gratis de free audio to text?
Lectures & study notes
Convert class recordings and study MP3s into notes you can skim, quote, and archive — free and on your device.
Podcasts & meetings
Draft show notes or meeting minutes from audio files. Export TXT or JSON when the transcript is ready.
Transcripción gratuita y privada
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 . Política de privacidad
Transcribir audio a texto FAQ
What audio formats can I transcribe for free?
Common formats such as MP3, WAV, WebM, M4A, and more work in modern browsers. Drop a file or browse to upload — transcription runs locally with Whisper.
Is there a file size or length limit?
Very long files depend on your device memory and CPU. For best results, split extremely long recordings or use a smaller Whisper model with the quantized option enabled.
Do I need an account to transcribe audio?
No sign-up is required for this free browser tool. Open the page, add audio, and transcribe — no login for local transcription.
How is this different from cloud transcription services?
Cloud tools usually upload your audio to their servers. Whisper AI’s free tool runs the model in a Web Worker in your browser, so your file is not sent to us for transcription.
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.
More free transcription tools
Voz / micrófono a texto
Voz a texto gratis con tu micrófono: transcripción privada en el navegador. No requiere cuenta.
URL de audio a texto
URL a texto gratis: pega un enlace de audio y transcribe de forma privada en tu navegador. Sin subida para transcribir.
Voz a texto
Convierte voz en vivo en texto con tu micrófono — gratis, privado y local en el navegador.
MP3 a texto
Sube un MP3 y transcribe en el navegador — gratis, privado, local con Whisper.
MP4 a texto
Sube un MP4 y obtén transcripción en el navegador — gratis, privado, Whisper local.
M4A a texto
Convierte M4A y notas de voz de Apple en texto en el navegador — gratis y privado.
WAV a texto
Transcribe WAV sin pérdida en el navegador — gratis, privado, Whisper local.
Buzón de voz a texto
Sube mensajes de voz exportados y transcribe en el navegador — gratis y privado.
Vídeo a SRT
Sube un vídeo y descarga subtítulos SRT — gratis, privado, marcas de tiempo en el navegador.