Protect your sources by design.
Transcribe interviews without a cloud service ever holding a copy of the recording. No account, no third-party server between you and your source — the audio and the transcript both stay on your machine.
Built for the work you can't risk uploading. ZoopZip turns audio and video into text entirely on your machine — no cloud, no server, no third party ever sees your recording. Trusted by journalists protecting sources, lawyers guarding privilege, researchers handling sensitive interviews, and businesses that simply don't send client conversations to someone else's server.
Private offline speech to text for macOS & Windows · no account needed
Who it's for
If what you record is confidential, privileged, or simply none of a server's business, ZoopZip is built for exactly that.
Transcribe interviews without a cloud service ever holding a copy of the recording. No account, no third-party server between you and your source — the audio and the transcript both stay on your machine.
Depositions, client calls and case interviews stay under privilege — nothing crosses the wire to a third-party server, so there's no vendor to name in a discovery request.
Interview and focus-group recordings often carry consent restrictions that rule out cloud tools. ZoopZip keeps data exactly where your ethics approval says it should stay.
Turn raw footage into captions and show notes fast, without uploading unreleased content anywhere before it airs.
Meeting notes, customer calls and internal reviews stay inside your own infrastructure — no vendor to add to your data-processing agreement.
Record the lecture, revise it later — clean text to re-read and search before exams, nothing ever uploaded.
Paste a link to a video with no captions and read along in your own time, at your own pace.
Why ZoopZip
Most transcription tools upload your audio to a server. ZoopZip processes every file on your own computer — free to start, with a one-time Pro upgrade for heavier or more professional use — so sensitive interviews, meetings, and recordings never leave your hands.
Your audio is never uploaded. All the processing happens locally, so your content stays entirely private — ideal for confidential and personal recordings.
The core app is free forever, with no account and no per-minute fees. Transcribe as much as you like, whenever you like.
Once a model is downloaded, ZoopZip works completely offline — on a plane, in a secure facility, or anywhere with no connection.
Drop in MP3, M4A, WAV, MP4, MOV or MKV. ZoopZip extracts the speech and transcribes it — great for podcasts, interviews and video subtitles.
No download tool needed — paste a video link and ZoopZip fetches it to your computer, then transcribes it offline. Great for lecture notes, research and study. Learn more.
Export plain text, a ready-to-share Word document, or SRT and VTT subtitles for YouTube, VLC and Premiere. JSON output is available for developers.
Built on OpenAI's Whisper models running locally, with accelerated performance on Apple Silicon (Metal) and NVIDIA (CUDA).
Tidies the transcript as it's written: filler words like “um” and “uh” removed, repeated stutters collapsed, punctuation and capitalisation smoothed out. Runs entirely on your computer, like everything else.
Marks who's likely speaking across an interview or conversation, so a two-person recording reads as a dialogue instead of one unbroken block. Labels are based on the pauses between turns — a readability aid, not voice recognition.
Turn on your microphone and watch the words appear as you speak. Edit the text while it's still running, then save it wherever you like — meetings, lectures and interviews, captured as you go.
Privacy by design
There is no cloud step to opt out of, because there is no cloud. ZoopZip reads your file from disk, transcribes it locally, and writes the result back — the audio never touches the internet.
Free vs Pro
The free app is a genuinely useful transcriber, not a crippled demo — most people never need to pay. Pro is for the files, formats, and polish that come with heavier or more professional use.
| Feature | Free | Pro one-time |
|---|---|---|
| Fully offline & private | Included | Included |
| Whisper models (tiny → medium) | Included | Included |
| Largest model — large-v3 (best accuracy) | — | Pro |
| Clip length per file | Up to 15 minutes | Unlimited |
| Batch transcription (queue many files) | 1 file at a time | Unlimited, unattended |
| Export: TXT, SRT, DOCX | Included | Included |
| Export: VTT, JSON (web & developer) | — | Pro |
| AI Cleanup (filler words, punctuation) | — | Pro |
| Speaker labels (who said what) | — | Pro |
| Price | $0 forever | One payment, yours for life |
Download
Available for macOS and Windows. Download the app, grab a model, and start transcribing privately — no sign-up required.
See the minimum system requirements, or visit the downloads page.
