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.
Today’s crypto prices
Live prices for the biggest coins, each with a plain-English fact sheet.
All crypto prices → · All coin fact sheets → · List of cryptocurrencies →
New to crypto? Start here.
Learn the basics
Start from zero: Bitcoin, blockchains, wallets and fees in plain English.
Use a calculator
Profit after fees, sats and gwei, the true cost of buying.
Protect yourself
Spot scams, guard your seed phrase, avoid costly mistakes.
Look up a word
Every crypto term, explained in a sentence or two.
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.
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 diveSee how a crypto payment works
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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.
Start Crypto 101 →