A fully client-side Ethereum vanity address generator, accelerated with low-level WebAssembly + SIMD and highly optimized C++ → WASM kernels.
Built to deliver "GPU-like" speed directly in your browser — no servers, no backend, no key transmission.
Generate clean, custom Ethereum addresses such as:
0x0000...
0xDEAD...
0xCAFE...
0xSOL...
0xBABE...
Perfect for branding, security, or simply having a unique and recognizable wallet.
👉 https://customethaddress.com
All computation happens client-side using:
- WebAssembly (WASM)
- SIMD acceleration (AVX2 / AVX512 where available)
- Multi-threaded Web Workers
- Hand-tuned inner loops inspired by high‐performance GPU kernels
No private key ever leaves your device.
- WASM-accelerated prefix/suffix search
- Keys generated fully client-side
- Supports combined patterns (prefix + suffix)
- Instant Web UI — no installation required
- Ethereum-compatible (secp256k1)
Most vanity generators are either:
- GPU miners → fast but require setup + trust
- Browser-only → too slow for real vanity mining
- Unoptimized → waste cycles, poor SIMD usage
This project fixes all that using:
- WASM-optimized C++ kernels
- Manual SIMD intrinsics
- Multi-threaded workers
- No backend dependency
- Zero-trust architecture
Inspired by profanity2, but re-engineered for modern browsers with a native-like execution pipeline.
- You enter a pattern (e.g.,
0x0000,0xBABE,0xALPHA) - The WASM engine brute-forces millions of keys per second
- Once a match hits:
- The public address is displayed
- The private key (generated locally) is shown
- You save it securely
Everything happens in-memory only — no server, no logs.
| Hardware (Browser) | 4-char Prefix | 5-char Prefix | 6-char Prefix |
|---|---|---|---|
| Basic laptop CPU | slow | very slow | impractical |
| High-end laptop | decent | slow | very slow |
| Desktop CPU (AVX2) | fast | manageable | slow |
| AVX-512 CPU | very fast | fast | realistic |
With the optimized WASM pipeline, performance is several times higher than typical JS-based miners.
This README naturally ranks for:
- client-side ETH address generator
- ethereum vanity address tool
- wasm ethereum vanity generator
- webassembly eth wallet generator
- eth vanity browser tool
- fast ethereum key generator
- profanity2 inspired eth vanity
Inspired by 1inch & profanity2.
Live client-side implementation: https://customethaddress.com