Coin vs token: what is the difference?

A coin is the built-in currency of its own blockchain, such as bitcoin on its own network or ether on Ethereum. A token is an asset created on top of an existing blockchain by a program called a smart contract. People use the two words loosely, but the difference affects how an asset is made, how it moves and what it depends on.

What is a coin?

A coin is native to a blockchain. The network's own rules issue it, usually as a reward to the miners or validators who process transactions, and it is the only thing the network accepts as payment for transaction fees.

Bitcoin, ether, Solana's SOL, XRP and dogecoin are all coins in this sense. Launching a new coin means launching a whole new network, which needs software, computers to run it and people willing to use it.

What is a token?

A token lives on someone else's blockchain. A smart contract, which is a program stored on the chain, keeps the list of who holds how many units and moves them when holders give the instruction.

On Ethereum, most tokens follow a shared template called ERC-20, so wallets and exchanges can handle them all the same way. The dollar stablecoins USDT and USDC are tokens. So are Chainlink's LINK, Uniswap's UNI, Shiba Inu and most meme coins, despite the name.

Creating a token can take minutes and cost very little, which is one reason there are so many of them.

Why does the difference matter?

• Fees. Moving a token costs a fee paid in the host chain's coin. To send USDC on Ethereum, you need some ether to pay the gas fee.
• Security. A token borrows the security of the chain beneath it. It also depends on its own contract code, which can contain bugs or give the issuer special powers, such as freezing balances or creating new units.
• Networks. The same token can exist on several blockchains at once. Sending it on a network the receiving wallet does not support can mean losing it.
• Control. A coin's rules change only when its network agrees. A token's rules are set by whoever controls its contract.

Can a token become a coin?

Yes. Some projects start as a token on an existing chain and later launch their own network, swapping the old tokens for new coins. BNB and Tron's TRX both began as Ethereum tokens in 2017 before moving to their own blockchains.

In practice the labels blur. Names such as "stablecoin" and "meme coin" are used for assets that are tokens. Neither word tells you whether an asset is well built, widely used or how the law treats it. Regulators look at how an asset is sold and what buyers are promised, a point covered in the guide to utility tokens and security tokens.