The best alternatives to Trezor Keep Metal

NGRAVE GRAPHENE is an encrypted stainless steel backup for crypto recovery phrases. It uses a unique two-plate design — punch characters through the upper plate into the lower plate, then separate and hide them in different locations. Neither plate alone reveals your key. Fire resistant up to 1375°C, waterproof, and corrosion resistant.

Coinplate Alpha is a premium stainless steel seed phrase backup made from two 5mm AISI 304 steel plates forming a 10mm thick steel sandwich. It stores up to 24 BIP39 recovery words using an included automatic center punch tool — no extra tools required. Fireproof up to 1,300°C, waterproof, corrosion resistant, and top-rated in Jameson Lopp's extreme stress tests.

The imKey HeirTAB L1 is a stainless steel seed phrase backup tile that supports 12, 18, and 24 BIP39 seed phrases. It is smudge-free, fireproof up to 2000°C, waterproof, and anti-corrosion, compatible with all major software wallets like MetaMask, Coinbase, and Trust, as well as hardware wallets like Ledger and Trezor.

The imKey HeirBOX P1 provides BIP39 hardware wallet backup with support for 64-character private keys, high-strength passwords, and passphrases. It features 4 different tile plates (uppercase, lowercase, numbers, characters) with separate spaces for each tile to prevent seed phrase disorganization.

The imKey HeirBOX S1 is a BIP39-compatible seed phrase backup with A/B double-sided storage supporting 12, 18, and 24-word recovery mnemonics. Using the first 4 letters of each mnemonic word per the BIP39 protocol, it is compatible with all major software and hardware wallets.

The SecuX X-SEED PRO is an indestructible stainless steel seed phrase storage system for backing up your private key. It is waterproof, fireproof, tamper-proof, and comes with pre-stamped English letter tiles and an engraver for secure offline backup.

The SecuX X-SEED is a secure metal seed phrase storage solution that protects your assets against water, fire, and cyber attacks. It is completely offline, tamper-proof, and comes with a protective case for durable cold storage of your recovery phrase.

The Billfodl is a solid steel case designed to store and protect your 24-word recovery phrase against fire, water, and impact. Using character tiles, you recreate your recovery phrase in the steel unit with labeled slots for each word, creating an almost indestructible backup.

The Cryptosteel Cassette is a pocket-sized stainless steel unit that pioneered the market for offline metal wallets since 2013. It stores up to 96 characters of alphanumeric data using engraved stainless steel tiles, offering resistance to fire, flooding, corrosion, and impact.

The Cryptosteel Capsule is a versatile metal wallet providing 100% coverage for BIP39 seeds, Shamir Backup SLIP39, BIP32 root keys, WIF private keys, and Monero mnemonic seeds. It also supports over 99% of hexadecimal and random ASCII strings for comprehensive offline private key storage.