Those two sentences sound similar and are not. An exchange keeps a ledger on your behalf and what you hold is a claim against it. A self-custody wallet hands you the key to the chain itself — no intermediary, and no support line either.
This site draws that line clearly, then works through the places beginners actually get stuck: seed phrases, gas, signature approvals, picking the right chain. There is also a piece called who does not need a Web3 wallet. If you finish it and decide to skip the whole thing, that is a legitimate answer and this site is happy to have given it to you.
From "what is the difference" to actually building one. Stop at any point where it stops feeling right.
Each one answers a specific question rather than surveying a topic. Jump straight to what you need.
All of them run inside your own browser: nothing is uploaded, nothing goes over the network, no login. No tool on this site accepts a seed phrase or a private key.
Not an either-or. Split by purpose and no single failure reaches everything.
Holds whatever you actively trade. Fiat moves in and out here, and there is a support channel when things go wrong.
Worth doing: authenticator-based two-factor, a withdrawal address whitelist, an anti-phishing code.
Holds only what you could lose today without it mattering. This is what connects to sites and joins on-chain activity.
Its real job is to put a ceiling on the day your judgement fails.
Holds the bulk of your assets. It receives, and it sends to your own addresses. It never connects to anything.
Once the balance clearly exceeds the price of a hardware device, this layer is worth paying for.
Go straight there. You do not have to read the earlier sections first.
Most writing about wallets is quietly pushing you to go get one. We do not write that way. Self-custody replaces the bank, the support desk and the recovery flow with a single person: you. It solves "what if the platform collapses" and introduces "what if I lose it myself." For a good number of people, the second risk is larger than the first.
So this site carries a piece called who does not need a Web3 wallet, written with the same care as the other fifteen. If you read it and decide to leave your coins on an exchange with two-factor set up properly, that is a coherent choice and we are not going to treat it as ignorance.
Who we are, where the money comes from, and whether taking that money changes what we say: About this site and Risk & disclosure. When we get something wrong, it goes on the corrections page as written.