PasteLint

Context-aware paste protection to prevent accidental data leaks and security risks

PasteLint protects you from accidentally pasting sensitive information in the wrong place. It analyzes clipboard content locally and warns you about potential security risks when filling out web forms. 🔒 KEY FEATURES: • Smart Content Detection Detects emails, phone numbers, passwords, API keys, crypto keys, and seed phrases • Context-Aware Analysis Analyzes field types, labels, and domain environments to assess risk • Risk Assessment Evaluates risk levels (low, medium, high) and warns you before dangerous pastes • Privacy-First Design All analysis happens locally in your browser - your data never leaves your device • Smart Profiles Choose from Development Mode, Production Mode, or Crypto Mode based on your needs • Allowlist Support Trust specific domains to always allow pastes without warnings 🛡️ USE CASES: • Online Forms: Prevents pasting email addresses into phone number fields • Password Protection: Warns when pasting passwords into non-password fields • Financial Information: Protects credit card numbers and bank account details • Personal Information: Alerts when pasting sensitive data into public fields • Work & Business: Prevents accidental leaks of API keys and credentials • Cryptocurrency: Extra protection for crypto wallet keys and seed phrases • Social Media: Warns before pasting sensitive content into public posts 🔐 PRIVACY & SECURITY: • No clipboard storage - content analyzed in memory only • No network calls - all analysis happens locally • No analytics or telemetry • No data collection or transmission • Open source and transparent Perfect for anyone who values privacy and wants an extra layer of protection when filling out forms online.