Stays on your PC
- Your video and audio
- Faces and voices
- Transcripts and captions
- File names and folders
Reaches us
- Email addressfor your download and receipts
- Licence keyto activate the app
- Anonymous device IDto count the PCs on your plan
Why local AI
Your AI shouldn't need
your data in the cloud.
Cloud caption apps upload your video before their AI can hear a word. OpaCaptions brings the AI to your footage instead: Whisper runs on your own PC, so the video, the audio and the transcript never leave it.
PrivacyNothing to leakClient work, patients, students, unreleased launches: none of it is uploaded, so there's nothing to breach, sell or train AI on.
Money$49, onceTypical caption apps charge $15–$69 a month, every month. Pro pays for itself in a few months, with no credits and no per-minute fees.
TimeNo upload waitA 1 GB video takes about 7 minutes to upload on a 20 Mbps connection before a cloud app can even start. On your PC, captioning starts the moment you open the file.
PlanetNo round tripYour big video files aren't sent across the internet and kept on someone's servers. The AI runs on the PC you already own, only while you use it.
Everything we ever see.
It's a short list.
Prove it in 30 seconds
Turn on airplane mode, then caption a video.
Once it's installed, try it for real.
Built for sensitive footage
For footage that
can't leave the building.
If you'd think twice before uploading it, caption it with OpaCaptions.
Agencies & freelancers
Client footage under NDA stays on your machine, so there's no extra company handling it to declare to your clients.
Healthcare & therapy
Patient education and training videos, where faces and voices must stay private.
Legal & HR
Investigations, depositions and compliance training, captioned without the recording ever leaving your PC.
Schools & universities
Lectures and classroom recordings with students, including minors, on camera.
Journalists & documentary
Interviews with sources and unpublished stories stay with you until the moment you choose to publish.
Product & marketing teams
Unreleased launches and embargoed announcements never sit on someone else's server.
Because your footage is never sent to us or any AI provider, there's no third party processing your video. That makes NDA, GDPR and India's DPDP Act obligations simpler to meet. Always confirm with your own compliance team.
Keep your footage where it belongs. Start free, upgrade when you're ready.