This tool generates Ethereum public and private keypair until it finds address which contains required prefix and/or suffix. Address part can contain only digits and letters from A to F.

go get github.com/meehow/ethereum-vanity-wallet

➜ ~ ethereum-vanity-wallet -p ab -s cd

Address: 0xAb719Dc27043be01e9ef02026407163455Ae7fCd PrivateKey: 0a2ab8789247f97b1a54919c3ff45dda4ec26ecc4f9a1b3df82f9c7090dafe83

Address: 0xab56b21826316f56f1Ee7e2e69C489A51EB8A5cd PrivateKey: f9fd0529afeeb74e3918447cf69f4fadc3684306e613f92f38380548134e2760

Address: 0xabf6AC87BBad30215359739A6EE4159F4c4a23cd PrivateKey: c5bc2fac7fb08cc883adf37c0e0edeb142978859668546ac859bf7b1e8fe8767

^C

My laptop with i7-6500U CPU can generate around 6500 keys per second per core.

pkg: github.com/meehow/ethereum-vanity-wallet
BenchmarkNewKeyForDirectICAP-4            	      30	  35699828 ns/op
BenchmarkNewKeyForDirectICAPNotRandom-4   	   10000	    157199 ns/op
BenchmarkRawEcdsa-4                       	   10000	    152757 ns/op
BenchmarkRawEcdsaNotRandom-4              	   10000	    152196 ns/op

Having ETH address, with few letters which are defined by us, makes it easier to visually identify this account among others. In opposite to Ethereum Name Service, it doesn't require special support by wallet implementation and it's for free.

If you have some spare Ethereum, you can send it to 0xDEad5CE2A46BadBD39638C8164727e8BD09ABEef 🤑