Most video editors require you to upload your footage to a cloud server. For confidential material — client discovery footage, patient case studies, pre-release product reveals, source interviews — that upload is the entire problem.
AetherCut is the security-first video editor that solves it. The editor runs entirely in your browser. Your footage is read into memory via the File API and never traverses the network. The claim is verifiable in 30 seconds: open Chrome DevTools, switch to the Network tab, import a video, and watch zero outbound traffic carrying media data.
This is the falsifiable privacy claim that no upload-based editor can make. The architecture isn't an opt-in privacy mode bolted onto a cloud product. It's the default and only mode of operation.
The editor is built on standard browser APIs — File API for media import, Canvas API for the timeline preview, WebCodecs for video decode and encode, MediaRecorder as a fallback for older browsers. None of these APIs require network access. The export runs entirely on your hardware via WebCodecs.
AI features that genuinely need cloud inference (Whisper auto-captions, ElevenLabs voiceover, Sora 2 B-roll generation) are opt-in per feature, clearly labelled in the UI, and disabled entirely by Privacy Mode — a one-click toggle in the header that severs every network-touching AI call.
When Privacy Mode is on, the editor continues to work using on-device AI features only (background removal, scene detection, motion tracking, color match). For high-security environments where any outbound network call is a non-starter, Privacy Mode delivers the full editor experience with zero cloud dependencies.
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