I tried to make text invisible to cameras (but readable to humans)

We spend a lot of time thinking about backend security,auth, encryption, access control. But there’s a simple gap on the frontend: If something is visible on screen, it can be captured with a phone. There’s no reliable way on the web to prevent that. At best, you can try to block screenshots or disable interactions, but none of that works against an external camera. I wanted to explore a different direction. The idea Instead of trying to block access, I experimented with how text is rendered. The key observation is that human vision and cameras behave differently: Humans perceive continuous motion (persistence of vision) Cameras capture discrete frames So I tried rendering text in a way that stays readable to the human eye but doesn’t translate cleanly into individual frames. What I built A small library called secure-render-text . It uses a combination of: rapid frame alternation layered character rendering subtle visual inconsistencies The goal isn’t to hide the text, but to make cap