WhatIsCrypto.info
BTC—ETH—BTC MAX SUPPLY21,000,000BTC MINED20,000,000+BLOCK REWARD3.125 BTCNEXT HALVING~2028BTC BLOCK TIME~10 MINETH BLOCK TIME12 SECETH TRANSFER21,000 GAS1 BTC100,000,000 SATS1 ETH1,000,000,000 GWEISTABLECOIN TARGET$1.00US CRYPTO FRAUD LOSSES 2025$11.4BCRYPTOS LISTED~17,400FIRST BLOCKJAN 3 2009
CRYPTO, EXPLAINED CLEARLY

What is Crypto?

Crypto explained in plain English: how it works, what it really costs, and how to stay safe. No hype, nothing to sign up for.

Plain English, no hypeNothing you type leaves your browserSources on every guide
Free course · about 1 hour · no sign-up

Crypto 101

Ten short lessons, each with a three-question quiz, from "what is crypto?" to spotting scams. Your progress is saved on your device.

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A good place to begin

What is cryptocurrency?

Digital money with no bank in the middle: what it is, how it works, what makes it different from the dollars in your account, and where the risks begin. About ten minutes, no jargon.

Read the beginner's guide The complete deep dive
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See how a crypto payment works

Tap each step.

You enter an address and amount. Your wallet signs the payment with your private key, which proves the coins are yours without revealing the key.

The full step-by-step guide → · Try the blockchain demo →

Questions people ask

What is cryptocurrency, in one sentence?

Digital money recorded on a shared public ledger (a blockchain) that no single bank or government controls. Read the beginner's guide.

Is crypto safe to buy?

The technology can work as designed and you can still lose money: prices swing hard, scams are common, and payments usually can't be reversed. How to buy safely.

Do I need to buy a whole bitcoin?

No. Bitcoin divides into 100 million satoshis, so you can buy a few dollars' worth. Convert BTC to sats.

What's a wallet and a seed phrase?

A wallet holds the keys that let you move your coins; the seed phrase is the master backup of those keys. Anyone who sees it can take everything. Protect your seed phrase.

How do I spot a crypto scam?

Guaranteed returns, pressure to act fast, requests to pay in crypto or at a Bitcoin ATM, and anyone asking for your seed phrase. Use the scam checker.

Does this site sell crypto or give advice?

No. We don't sell anything, track you or take payments from exchanges. Everything here is education, not financial advice. Our disclosure.

Understand crypto in an hour

Ten short lessons with quizzes, from what crypto is to spotting scams. Free, no sign-up, progress saved on your device.

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