Generate a Bitcoin vanity address in your browser
Create a Bitcoin address that starts with custom letters of your choice. Generation runs entirely on your CPU using Web Workers. Your private key never touches our servers because it is never sent anywhere. Open your browser dev tools to verify there are no network requests during generation.
How vanity generation works
We brute force keypairs in parallel until one of them produces an address starting with your prefix. The math is simple but the search space grows exponentially. Each extra prefix character makes generation about 58 times harder for legacy addresses and 32 times harder for SegWit.
Why client-side matters
Server-side vanity generators have always been a security disaster. The operator can save your private key. Even if they swear they don't, you have no way to verify. Our generator runs 100 percent in your browser using audited cryptographic libraries from the Bitcoin community.
Realistic prefix lengths
1 to 3 characters: instant. 4 characters: seconds. 5 characters: minutes. 6 characters: hours on a laptop, minutes on a workstation. 7 plus: better to rent GPU compute or use specialized tools. The page shows you live progress and an estimate.
FAQ
No. The private key is generated with the same secp256k1 randomness as any other Bitcoin address. The vanity prefix does not weaken the key.
Yes. Download the JSON output and import the WIF private key into Sparrow, Electrum, or any wallet that supports WIF.
Generation is CPU-intensive. On a laptop, plug in or limit to 2-3 worker threads. On a desktop, use as many threads as you have cores.
Base58 alphabet only. Avoid 0, O, I, lowercase l. The page warns you in real time if your input contains an invalid character.