Tag wallets, detect poison transactions, get real-time alerts. One extension that turns raw hex into names, shields you from scams, and watches your addresses across 16+ chains.
Three layers of on-chain awareness in one lightweight extension
Name any wallet once — it appears across every scanner. Etherscan, BscScan, Arbiscan, all of them. One address book, everywhere.
Detects and neutralizes poison transactions — dust spam, zero-value transfers, and lookalike scam addresses. Automatic protection on every page.
Enable monitoring on any tagged address and get instant Telegram notifications when it sends, receives, or swaps tokens across all chains.
Copy an address and Guardia checks it against your address book. Instant warning if you're about to paste a lookalike scam address.
Your address book syncs across all browsers and devices. Log in on a new machine — all your tags, notes, and categories are already there.
Tagged addresses get color-coded gradient badges by category. My Wallets in green, Exchanges in blue, Suspicious in red — recognizable at a glance.
Scammers plant fake transactions in your history hoping you'll copy the wrong address. Guardia stops that.
A scammer sends a $0 transaction from an address that looks almost identical to yours. It shows up in your history — bait for your next copy-paste.
Guardia has learned to recognize these poisoning patterns. The moment a page loads, every suspicious transaction is identified and blocked — no configuration needed.
Pick how threats are handled. Guard mode hides poison transactions completely — they vanish from the page. Scan mode highlights them in red so you can inspect them yourself.
Enable monitoring on any tagged address and Guardia Bot sends you real-time notifications directly in Telegram — no extra apps, no dashboards to check.
Tag addresses, detect scams, get alerts. Free forever for personal use.
Last updated: March 2026
Guardia stores your address tags, categories, and notes locally in your browser using Chrome Storage. If you enable Telegram monitoring, we store the monitored wallet addresses and your Telegram ID on our server to deliver notifications.
We do not collect browsing history, page content, private keys, seed phrases, passwords, or any financial data. Guardia has no access to your funds — it only reads publicly available data on block explorer pages.
Shield analysis runs entirely in your browser. Transaction data is analyzed locally — nothing is sent to external servers. No transaction history or page content leaves your device.
When you enable monitoring for an address, we store that address and your Telegram chat ID on our server to send notifications. You can disable monitoring or delete your account at any time — all associated data is removed immediately.
You can export all your data (tags, categories, notes) as CSV or JSON at any time from Settings. To delete all data, uninstall the extension — all local storage is cleared automatically. For server-side data, log out from Settings.
We do not sell, share, or transfer your data to any third parties. We use Google Fonts for typography — no other external services are loaded.
Guardia requests minimal Chrome permissions: storage (save your tags), activeTab (read the current explorer page), and clipboardRead (clipboard protection). Content scripts only run on supported block explorer domains.
Questions about privacy? Reach us via Telegram or open an issue on GitHub.