Mock Interview Copilot: Practice interviews with an AI copilot built on your notes

Hi Product Hunt! I built this because generic interview-prep tools give generic answers. Mock Interview Copilot only answers from the notes you upload, and it runs entirely in your browser (or the desktop app) against API keys you own, so nothing passes through a server we control. It works on Google Meet, Teams, Zoom (web) and Webex, docks into Chrome's side panel, and can read shared slides or code. The desktop app captures system audio so it also works with the Zoom and Teams desktop apps. It's free. Use it for mock interviews and practice, and get consent before recording anyone; the app reminds you of that. Ask me anything about the audio-capture side (tabCapture + offscreen document in MV3, Electron loopback on desktop); that was the hard part.