Quick answer: If you’re holding more than a small amount of value, or planning to hold NFTs long-term, use a hardware wallet. If you’re just testing things out with a small amount, a software wallet is fine to start. The difference comes down to where your private key lives, the string that proves ownership of whatever the wallet holds. A software wallet keeps that key on an internet-connected device (a browser extension or phone app), which is convenient for everyday marketplace use but exposed to malware and phishing. A hardware wallet generates and stores the key on a small offline device, so even a compromised computer cannot move your assets; Ledger is the most established name in that category. Whichever type you use, the seed phrase you receive at setup can regenerate the entire wallet, so it must be written on paper, never typed into a website, and never stored digitally.
What a private key actually is
Every wallet is built around a private key, a long string that proves ownership of whatever’s inside it. Whoever has the key controls the assets. There’s no password reset, no customer support line, no “forgot my key” recovery flow. If the key is gone or stolen, so is everything attached to it.
That single fact explains almost every wallet design decision that follows.
Software wallets
A software wallet is an app: a browser extension, a mobile app, or both. The private key is generated and stored on your device, usually encrypted behind a password.
What they’re good for: everyday use. Connecting to marketplaces, signing transactions, moving smaller amounts around. Setup takes minutes.
What they’re not good for: large holdings. Your key lives on a device that’s connected to the internet, which means it’s exposed to malware, phishing sites, and browser extension exploits: the most common ways NFT collections actually get stolen. A device that’s connected is a device that can be attacked.
Hardware wallets
A hardware wallet is a small physical device that generates and stores your private key completely offline. When you sign a transaction, the signing happens on the device itself: the key never touches your computer or phone, even when the device is plugged in.
What they’re good for: serious holdings. Even if your computer is compromised, the key stays isolated on the hardware. This is the standard setup recommended by security researchers and experienced collectors.
What they’re not good for: convenience. There’s a physical device to carry, a button to press for every transaction, and a small upfront cost. For someone testing the waters with a few dollars of ETH, it’s overkill.
Check Ledger Wallets →
Seed phrases: the part that actually matters
Both wallet types give you a seed phrase, usually 12 or 24 words, when you first set them up. This phrase can regenerate your private key on any device. It is, functionally, your entire wallet in text form.
Rules that aren’t optional:
- Write it on paper. Don’t screenshot it, don’t save it in a notes app, don’t email it to yourself.
- Never type it into a website, ever. No legitimate wallet or marketplace will ever ask for your seed phrase after initial setup.
- Store it somewhere a fire or flood won’t destroy it along with the only copy.
Almost every large NFT theft traces back to a seed phrase leaving the owner’s control, not to the blockchain itself being hacked. The technology isn’t the weak point. The human handling it is.
A simple way to decide
- Just exploring, small amounts, want to move fast: software wallet.
- Holding anything you’d be upset to lose, or planning to hold for months or years: hardware wallet.
- Somewhere in between: software wallet for day-to-day use, hardware wallet for savings. The same split most people use between a checking and a savings account.
Whichever you choose, the wallet decision matters more than which marketplace you buy from. Get this part right first.