Last Updated: January 31, 2026 This extension is provided "as is" without warranty. Use at your own risk.
SmartFolio ("we", "our", or "the extension") is a Chrome browser extension designed to help you track your cryptocurrency portfolio across multiple wallets and exchanges with absolute privacy.
[!IMPORTANT]Our Zero-Knowledge Commitment We NEVER request or store your Private Keys or Seed Phrases. Your financial sovereignty is our top priority.
| ✅ What We Collect | ❌ What We NEVER Collect |
|---|---|
| Wallet Addresses: For on-chain tracking. | Private Keys: We never touch your funds. |
| CEX API Keys: Stored locally only. | Personal Info: No names, emails, or IDs. |
| AI API Keys: For OCR services (local). | Browsing History: We don't track you. |
| Portfolio History: For local trend analysis. | Analytics: No external tracking servers. |
All data is stored locally on your device using Chrome's secure storage APIs. We do not operate any external servers.
• chrome.storage.local — Primary storage for wallets, API keys, and settings.
• chrome.storage.sync — Optional cross-device sync (End-to-end encrypted by Google).
• Encryption: API keys are stored in encrypted Chrome storage.
• Authentication: CEX API signatures use HMAC-SHA256.
• Transmission: No data is transmitted without HTTPS encryption.
SmartFolio connects directly to these services based on your configuration. Your data never passes through us.ServicePurposeData SentEtherscanEVM balance queriesWallet addressHelius / SolscanSolana balance queriesWallet addressDeBankPortfolio screenshotsWallet address (via URL)ExchangesBinance, OKX, Bybit, BitgetAPI Key + Signature**AI (OpenAI/Google)**OCR processingScreenshot images