Atrium Browser Lite

Mask sensitive data in ChatGPT, Claude & Gemini — before it ever leaves your browser.

# Atrium Browser Lite Catch sensitive data before it reaches AI. Atrium Browser Lite automatically detects and masks sensitive information before prompts are sent to ChatGPT, Claude, Gemini, and other AI tools. Whether you're a developer, consultant, founder, analyst, or AI power user, accidental data exposure can happen in seconds. Atrium helps reduce that risk by protecting information before it leaves your browser. ## What Atrium Protects * API keys and tokens * Email addresses * Phone numbers * Credentials and secrets * NIK and personal identifiers * Sensitive business information ## How It Works Atrium monitors prompts on supported AI platforms and replaces sensitive values with safe placeholders before submission. Examples: [john@example.com](mailto:john@example.com) → [EMAIL] 081234567890 → [PHONE] sk-proj-xxxxxxxx → [API_KEY] ## Privacy First Unlike many browser extensions, Atrium does not require an account and does not send your prompts to external servers. ✓ Runs entirely in your browser ✓ No backend ✓ No account required ✓ No prompt storage ✓ Open source ## Supported Platforms * ChatGPT * Claude * Gemini More AI platforms are continuously being added. ## Built for the AI Era As AI tools become part of everyday work, protecting sensitive information should be automatic. Atrium Browser Lite adds a simple privacy layer between your data and AI systems so you can use AI with greater confidence. Built in Jakarta. Open source. Privacy-first.