Wallet Balance Viewer

Professional crypto wallet balance checker for Ethereum and Bitcoin. View ETH, ERC20 tokens, and BTC balances.

Wallet Balance Viewer is a Chrome extension that allows users to check cryptocurrency wallet balances for Ethereum and Bitcoin addresses, as well as view ERC20 token balances. Key Features: • Supports Ethereum (ETH) and Bitcoin (BTC) balance checking • Displays ERC20 token balances for Ethereum addresses • Converts balances to USD using CoinGecko market data • Simple and responsive user interface • Stores user preferences locally in the browser • Works with multiple public RPC endpoints for reliability Privacy & Data Handling: • All user settings are stored locally in the browser • No personal data is collected or transmitted to external servers • The extension only processes public blockchain data (wallet addresses and balances) • No private keys or sensitive credentials are requested or accessed Supported Networks: • Ethereum mainnet • Bitcoin network • ERC20 token standard How It Works: 1. Select a cryptocurrency (ETH or BTC) 2. Enter a public wallet address 3. The extension retrieves balance data from public blockchain APIs 4. Displays balance and optional USD conversion Additional Information: • Built using Chrome Extension Manifest V3 • Uses public blockchain RPC and API services • Designed for informational and monitoring purposes only • Open-source project available on GitHub Developer: Mohammad Nasser Haji Hashemabad GitHub: github.com/mnhashemabadi/wallet-balance-viewer License: MIT