Track your crypto wallets without giving up your data. No account, no KYC, no server-side storage — your wallet addresses stay on your device.
Website: www.21stealth.com — Launch App →
Most portfolio trackers require you to create an account and hand over your wallet addresses. 21stealth works entirely in your browser — no registration, no cloud sync, no data collection. Just add your addresses and see your portfolio.
- No account required — open the app and start tracking
- No KYC, no email — completely anonymous
- Watch-only — read-only access to public blockchain data, your private keys are never involved
- Open source — the code is public and auditable
- Track wallets across ETH, BTC, SOL, LTC, DOGE, TRX
- xPub support for BTC, DOGE, LTC — add one key, track all derived addresses
- ERC-20 tokens — USDT, USDC balances included automatically
- Live prices with 24h change
- Portfolio history chart
- Dark / light theme
- Installable PWA — add to home screen on mobile or desktop, works offline
Your wallet addresses are stored in your browser's localStorage only. Nothing is ever sent to a server except the blockchain queries and price fetches needed to display your portfolio.
Backup your config: Export your wallet config as an encrypted JSON file (password-protected) and store it wherever you want — your own cloud storage, USB drive, or password manager. Import it on any device to restore your portfolio instantly.
21stealth is a Progressive Web App. In Chrome, Edge, or Safari — open app.21stealth.com and install it from the browser menu. No app store required.
- Vite + React 18
- Tailwind CSS + custom design system
- TanStack Query, React Router, Recharts, Zustand
- PHP backend (separate repo) — handles blockchain queries so API keys stay server-side
- PWA via vite-plugin-pwa
Issues and pull requests are welcome. The project is in active development.