Proxia — AI firewall

Proxia is a cognitive firewall for your conversations with AI. Before you send a message to AI assistants and LLMs, Proxia scans the text on the page and warns you if it contains: secrets (API keys, tokens, passwords); personal data (email addresses, phone numbers, IBANs, identifiers); prompt injection attempts (hidden prompt manipulation). You stay in control at all times: Proxia flags potential issues and suggests a protected version of your text. It never removes or blocks anything on your behalf. You can copy the masked version, send the original anyway, or cancel. Everything stays on your device. Inspection runs locally through an embedded WebAssembly module (the same engine used by the Proxia app). No prompts, detections, or data ever leave your browser. No account, no analytics, no tracking cookies. Compatible with Chrome, Edge, Brave, Opera, and Arc.