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Detect and mask sensitive information locally before your prompts leave the browser. # 🔒 Atrium Browser Lite Atrium Browser Lite automatically detects and masks sensitive information before prompts are sent to AI assistants and chat platforms. Whether you're a developer, consultant, founder, analyst, or everyday AI user, accidental data exposure can happen in seconds. Atrium reduces that risk by protecting information before it leaves your browser — locally, with zero telemetry. # 🌍 Choose What You Protect Pick the regions and privacy regimes you care about (GDPR, HIPAA, UU PDP, PDPA, Privacy Act) — or simply enable Global mode. Only the detectors you choose will run. **Global** • API keys & tokens • Email addresses • Phone numbers • Credit cards • Personal names **Indonesia** • NIK • NPWP • Addresses • Company & legal document numbers **Singapore** • NRIC • FIN • UEN • Passport numbers **Australia** • Medicare • TFN • ABN • ACN **United States** • SSN • EIN • Driver license numbers • Routing & bank account numbers • Health identifiers **Malaysia, Thailand, Vietnam** • National identification numbers **Custom Dictionary** • Exact match terms • Case-insensitive terms • Regular expressions (Regex) # ⚙️ How It Works Atrium inspects outgoing prompts on supported AI platforms and replaces sensitive values with safe placeholders before submission. Examples: [john@example.com](mailto:john@example.com) → [[EMAIL_1]] 081234567890 → [[PHONE_1]] sk-proj-xxxxxxxx → [[API_KEY_1]] Optionally, original values can be restored inside the AI response so the model remains useful while the platform never receives your actual data. # 🛡️ Privacy First ✓ Runs entirely inside your browser ✓ No backend ✓ No account required ✓ No telemetry ✓ Never stores your original prompt values ✓ Activity history is automatically removed after 7 days ✓ Open source (MIT License) # 📊 More Than Masking Atrium provides additional controls for everyday AI usage: • Activity log with searchable history (type, platform, time — never the actual value) • Export activity logs to JSON or CSV • Per-site controls to enable or pause protection • Per-detector toggles • Regional privacy presets # 🚀 Built for the AI Era As AI becomes part of everyday work, protecting sensitive information should be automatic. Atrium adds a lightweight privacy layer between your data and AI systems, helping individuals and organizations use AI with greater confidence. Built in Jakarta • Open Source • Privacy First