Most “free” transcription sites make you upload your recording to their servers before you get a single word back. For an interview, a private voice note, a medical or legal recording, or anything confidential, that's a problem. The good news: you can now transcribe audio without uploading it anywhere — the speech-to-text happens entirely inside your own browser.
Why transcribe without uploading
- Privacy — sensitive audio (interviews, therapy notes, legal calls) never leaves your device, so there is no server copy to leak, subpoena or retain.
- No account, no limits — nothing to sign up for and no per-minute caps, because there is no cloud bill to recover.
- Speed and offline use — after the first load there is no upload wait and no round-trip; it even works without a connection.
How it works in the browser
Modern browsers can run AI speech models directly using WebAssembly and WebGPU. Our tool uses OpenAI's Whisper model, downloaded to your browser once and then cached. From that point on, your audio is decoded and transcribed locally on your own machine — the file is never sent to a server, ours or anyone else's.
Step-by-step
- Open the free transcription tool.
- Drop in your audio or video file (or paste it).
- The first run downloads the AI model once; after that it starts instantly.
- Copy the transcript, or download it as plain text (.txt) or timestamped subtitles (.srt).
What you can transcribe
Common audio formats (MP3, WAV, M4A, OGG) and video files with an audio track (MP4, WebM, MOV). The audio is decoded in the browser and fed to the model, so a video's soundtrack is transcribed without uploading the video either.
Tips for better accuracy
- Clear speech with little background noise transcribes best.
- A recent desktop with WebGPU (Chrome or Edge) is dramatically faster for long recordings.
- For long files, expect the first model download to take a moment — it only happens once.
FAQ
Can I really transcribe audio without uploading it? Yes. The model runs in your browser, so your recording stays on your device from start to finish.
Is it free? Completely — no signup, no per-minute limit and no watermark.
Can I transcribe a video without uploading it? Yes — the audio track is processed locally just like an audio file.
Does it work offline? After the one-time model download, yes — transcription needs no connection.