Simple wallet address validator for validating Bitcoin and other altcoins addresses in Node.js and browser.
Forked from ryanralph/altcoin-address.
File size is ~22 kB (minifed and gzipped).
npm install wallet-address-validator
<script src="wallet-address-validator.min.js"></script>- address - Wallet address to validate.
 - currency - Optional. Currency name or symbol, e.g. 
'bitcoin'(default),'litecoin'or'LTC' - networkType - Optional. Use 
'prod'(default) to enforce standard address,'testnet'to enforce testnet address and'both'to enforce nothing. 
Returns true if the address (string) is a valid wallet address for the crypto currency specified, see below for supported currencies.
- 
Auroracoin/AUR,
'auroracoin'or'AUR' - 
Bankex/BKX,
'bankex'or'BKX' - 
BeaverCoin/BVC,
'beavercoin'or'BVC' - 
Biocoin/BIO,
'biocoin'or'BIO' - 
Bitcoin/BTC,
'bitcoin'or'BTC' - 
BitcoinCash/BCH,
'bitcoincash'or'BCH' - 
BitcoinGold/BTG,
'bitcoingold'or'BTG' - 
BitcoinPrivate/BTCP,
'bitcoinprivate'or'BTCP' - 
BitcoinZ/BTCZ,
'bitcoinz'or'BTCZ' - 
Callisto/CLO,
'callisto'or'CLO' - 
Dash,
'dash'or'DASH' - 
Decred/DCR,
'decred'or'DCR' - 
Digibyte/DGB,
'digibyte'or'DGB' - 
Dogecoin/DOGE,
'dogecoin'or'DOGE' - 
Ethereum/ETH,
'ethereum'or'ETH' - 
EthereumClassic/ETH,
'ethereumclassic'or'ETC' - 
EthereumZero/ETZ,
'etherzero'or'ETZ' - 
Freicoin/FRC,
'freicoin'or'FRC' - 
Garlicoin/GRLC,
'garlicoin'or'GRLC' - 
Hush/HUSH,
'hush'or'HUSH' - 
Komodo/KMD,
'komodo'or'KMD' - 
Litecoin/LTC,
'litecoin'or'LTC' - 
Megacoin/MEC,
'megacoin'or'MEC' - 
Monero/XMR,
'monero'or'XMR' - 
Namecoin/NMC,
'namecoin'or'NMC' - 
Nano/NANO,
'nano'or'NANO' - 
NEO/NEO,
'NEO'or'NEO' - 
NeoGas/GAS,
'neogas'or'GAS' - 
Peercoin/PPCoin/PPC,
'peercoin'or'PPC' - 
Primecoin/XPM,
'primecoin'or'XPM' - 
Protoshares/PTS,
'protoshares'or'PTS' - 
Qtum/QTUM,
'qtum'or'QTUM' - 
Raiblocks/XRB,
'raiblocks'or'XRB' - 
Ripple/XRP,
'ripple'or'XRP' - 
Snowgem/SNG,
'snowgem'or'SNG' - 
Vertcoin/VTC,
'vertcoin'or'VTC' - 
Votecoin/VTC,
'votecoin'or'VOT' - 
Zcash/ZEC,
'zcash'or'ZEC' - 
Zclassic/ZCL,
'zclassic'or'ZCL' - 
ZenCash/ZEN,
'zencash'or'ZEN' 
var WAValidator = require('wallet-address-validator');
var valid = WAValidator.validate('1KFzzGtDdnq5hrwxXGjwVnKzRbvf8WVxck', 'BTC');
if(valid)
	console.log('This is a valid address');
else
	console.log('Address INVALID');
// This will log 'This is a valid address' to the console.var WAValidator = require('wallet-address-validator');
var valid = WAValidator.validate('1KFzzGtDdnq5hrwxXGjwVnKzRbvf8WVxck', 'litecoin', 'testnet');
if(valid)
      console.log('This is a valid address');
else
      console.log('Address INVALID');
// As this is a invalid litecoin address 'Address INVALID' will be logged to console.<script src="wallet-address-validator.min.js"></script>// WAValidator is exposed as a global (window.WAValidator)
var valid = WAValidator.validate('1KFzzGtDdnq5hrwxXGjwVnKzRbvf8WVxck', 'bitcoin');
if(valid)
    alert('This is a valid address');
else
    alert('Address INVALID');
// This should show a pop up with text 'This is a valid address'.