Free utilities

Tools

Single-purpose tools that run entirely in your browser. For full multi-chain derivation and balance checks, open the App.

Address validator

Detect chain family (BTC/ETH/TRX/SOL/XRP/...) and verify checksum locally — no server round-trip.
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WIF decoder

Decode a Bitcoin WIF private key (compressed K/L or uncompressed 5) into raw 32-byte hex, locally.
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BIP-39 mnemonic checker

Validate a 12/15/18/21/24-word seed phrase against the BIP-39 wordlist and checksum.
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Brain wallet weakness checker

See how easily an attacker can derive your wallet address from a memorable phrase. Live demo, runs entirely in your browser.
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