Billfodl: the safest way to store wallet seeds

By Arkemmus | Arkemmus' Blog | 16 Apr 2021

What is Billfodl?
Billfodl is a stainless steel recovery seed backup device, mainly used in conjunction with a hardware wallet such as a nano ledger or trezor. Made of stainless steel, Billfodl gives the best corrosion protection in the stainless steel family to protect your data in even the saltiest environments. With a melting point of 2500 - 2550 degrees °F (1371 - 1399 degrees °C), it can withstand more than double the temperature of an average house fire (1100 °F / 600 degrees °C). And it's impervious to any kind of electrical accident you might think of.


Why use it?
If you're like most people, you memorize your Seed Words on a piece of paper, probably on the same desk you put your phone on to charge it. In the event of a fire or flood, the phone or hardware wallet and the piece of paper with the words seed will be destroyed. Or maybe your spouse, sweetheart, or kid finds a piece of paper with random words on it and throws it in the trash, unbeknownst to you until you need it months or years later. You need something permanent, solid, and safe to store your Seed Words on.



Billfodl is the safest way to backup your crypto wallet offline, safe from hackers and anything else. Using a random set of character tiles, it recreates your recovery phrase in the steel drive, creating an almost indestructible backup. It works best with hardware wallets like Ledger and Trezor.

  • Fireproof
    Forged to withstand more than double the average home fire
  • Waterproof
    Marine-grade 316 stainless steel means it will never rust
  • Shockproof
    Shock resistance up to 1,000,000 volts means serious protection
  • Hacker proof
    The seeds and keys remain completely offline, so no hackers can touch it
  • Yourself Proof
    Unlike a piece of paper, it is less likely to throw a piece of steel away


Universal compatibility

Billfodl is compatible with every hardware and software crypto wallet on the market. It can support 12, 18, or 24-word BIP39 seeds or even vanilla private keys, regardless of the coin.


Simple setup

Have your recovery seed backed up and ready to go in less than 10 minutes. The "no stamping required" method means fast backup without decreasing security.


Laser engraved tiles

Since Billfodl tiles are laser engraved, it means your recovery seed is supported by the characters that are permanently burned into the stainless steel they are embedded on.


Laser-cut frame

The main unit is laser cut, which means that, unlike other similar products, the tiles always fit exactly the same every time, making it easier to load and more likely to keep its form in the event of a fire.



Billfodl setup
Put your key or seed by sliding the tiles, one by one, into the slats. Up to 96 characters can be stored, allowing you to back up an entire 24-word seed into a single unit. Don't worry if your entire seed is longer than 96 characters; you only need the first 4 letters of each seed to fully backup your wallet.

Once installed and secured, store it in a safe place for an enduringly waterproof and fireproof offline backup.


The standard Billfodl supports all types of seed/key: hexadecimal, BIP-39 seed sentences, alphanumeric and more. Unlike other products on the market, which charge you over $ 200 for the same support as Billfodl, you only have to pay $ 89.00 for this versatility.


Get Billfold here.

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Strong cryptocurrency lover, I have a lot of experience in this niche.

Arkemmus' Blog
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