Started at 1,000. Stablecoins and gold tokens excluded. Members are the ten largest coins at each update, and the divisor adjusts when they change so the line stays continuous.
Countdown
Bitcoin halving
Every 210,000 blocks, the reward for mining new Bitcoin is cut in half.
Calculators for prices, market caps, history and risk, using live data.
History
Past investment
What money put into a coin on a past date is worth today.
Your investmentSame money in BitcoinMoney put in
Steady buying
DCA simulator
Buying a fixed amount on a schedule, compared with putting it all in on day one.
Steady buyingAll on day oneMoney put in
Leverage
Leveraged ETF calculator
What a fund that resets its leverage every day would have returned, next to the coin itself.
Daily-reset fundThe coin itselfSimply 2x the return
Reality check
Price target
What a target price would mean for a coin's market cap.
Converter
Convert
Any coin to dollars or to another coin, at live prices.
Head to head
Compare coins
Side-by-side price, size, supply and performance.
Market cap comparison
What if
The price a coin would have with another coin's market cap.
Flippening watch
Closest races
Neighbours nearest to swapping rank (stablecoins excluded).
Dominance
Market share
Share of total crypto market cap.
Profit & loss
Return check
What a past buy is worth at today's price.
Risk
Position size
How much to buy so a stop-out loses only what you choose.
A stop-loss isn't guaranteed. Gaps and slippage can fill past your stop and make the loss bigger.
Supply
Dilution check
Circulating vs. maximum supply, and the cap if every coin existed.
Investing
Average cost
Your weighted average price across several buys.
Investing
Break-even
The selling price that gets your money back after fees.
Risk
Comeback
The gain needed to recover from a drop.
Start
After drop
Investing
Rebalancer
Trades needed to get back to your target mix.
Coin
Now
Target %
Trade
Today's crypto prices by market cap
How do you spot a crypto scam?
Almost every crypto scam needs you to do one of three things: hand over your recovery phrase, approve something you don't understand, or send crypto first.
Learn to spot those three requests and most scams fall apart, however professional they look.
The usual approaches
Drainer scams don't need your recovery phrase. One approval on a fake site can be enough, so read every approval before you sign it. Free to reuse
Never share your wallet's recovery phrase (also called a seed phrase) with anyone. A real exchange, wallet company or support agent will never ask for it, and anyone who has it can take everything in the wallet.
Be wary of anyone offering guaranteed or very high returns, giveaways that ask you to send crypto first, and new online friends or romantic contacts who steer you towards a trading platform. Fake support accounts on social media and look-alike websites and apps are common.
Scam tokens often copy the name and ticker of a real coin. Check the contract address on the project's official website before buying, and on KryptoKap's coin page, which lists addresses from CoinMarketCap's data.
The patterns behind most scams
Almost every scam needs you to do one of three things: hand over your recovery phrase, approve a transaction you don't understand, or send crypto to someone. If a message leads toward any of these, stop.
Urgency is the other tell. Real opportunities rarely vanish in an hour.
If something feels off
Don't reply or click. Find the company's official site yourself, through a bookmark or by typing the address, and contact them from there.
If you've already connected a wallet to a suspicious site, move funds to a new wallet and revoke token approvals using your wallet's approval settings or a block explorer's approval checker.
How a fake trading platform strings you along
The early small withdrawal is bait. The balance on screen is invented, and the final fee is just another payment to the scammer. Free to reuse
The most costly scams rarely ask for everything at once. In what police and regulators call pig butchering, a stranger spends weeks building a friendship or romance over a messaging app, then mentions a trading platform that has made them money. The platform is a website or app the scammer controls. Your deposit goes straight to their wallet, and the balance you see is just a number they type into a database.
The early stages are designed to remove doubt. Say you deposit $500 and the screen shows $650 a week later. You ask to withdraw $100 and it arrives, so the platform feels real. Next you send $20,000, and within weeks the account shows $48,000. When you try to cash out, a new obstacle appears, such as a 20% tax, a verification fee or an account upgrade, here $9,600, payable before anything is released.
Nothing is released after that payment either. Each fee leads to another one until you stop paying. In this example you sent $20,500 and got $100 back, so the loss is $20,400 before any fees. The FBI's Internet Crime Complaint Center has reported crypto investment fraud as the costliest category of complaint it receives, with billions of dollars in reported losses each year.
Address poisoning and the zero-value transfer
Address poisoning relies on people checking only the ends of an address. Copying from recent activity is how the fake gets used. Free to reuse
Some scams need no conversation at all. Wallet addresses are long strings, so most people check only the first and last few characters. Scammers use software to generate addresses that share those characters with one you have used, then send you a transaction for zero tokens or a tiny amount from the look-alike address. Now it sits in your wallet history next to the real one.
The next time you want to pay the same person, you open your recent activity and copy what looks like their address. The example shows how close the two can look, with 0x7a3F at the start and c91E at the end in both cases, with 26 different characters in the middle. Send to the fake and the funds are gone, because a confirmed blockchain transfer can't be reversed by anyone.
The defense is boring and effective. Save addresses you pay often in your wallet's address book, and copy from there, not from transaction history. When you must paste a new address, compare a block of characters from the middle as well as the ends. For a large payment, send a small test amount first and ask the recipient to confirm it arrived before sending the rest.
Key terms
Phishing
A fake site or message built to steal logins or keys.
Wallet drainer
A malicious approval that lets a scammer move your tokens.
Pig butchering
A long con that builds trust before pushing a fake platform.
Rug pull
Creators pull liquidity and disappear.
Polish is easy to fake
Whether a site is real. A polished design and a famous name are both easy to copy.
Whether a token is legitimate. Being listed on a data site only means it trades.
How to get money back. Crypto payments are hard to reverse, and "recovery services" are often a second scam.
What people get wrong
A professional-looking website or a celebrity's name doesn't make an offer real. Both are easy to fake.
Being asked to pay a fee or tax before you can withdraw is a classic sign the platform is fake.
Why it matters
Crypto payments are hard to reverse, so avoiding a scam is far easier than recovering from one.
Common questions
I've been scammed with crypto. What should I do now?
Stop sending money, save every message and transaction ID, contact the exchange you sent funds from, and report it to the police. In the US, the FBI takes reports at ic3.gov. Be careful of "recovery" services that contact you, which are often scams too.
Can stolen crypto be recovered?
Sometimes, but rarely. If funds reach an exchange that requires identity checks, police can ask it to freeze them, so report quickly and include transaction IDs. Anyone who contacts you promising to recover funds for an upfront fee is almost certainly running a second scam.
Is a zero-value transaction in my wallet a sign I've been hacked?
Usually not. It is often address poisoning, where someone sent you nothing from a look-alike address so it appears in your history. Your funds are safe as long as you never send to that address. Don't copy addresses from recent activity.
