See my returns and portfolio breakdown. Follow for investment tipsAltcoins (short for "alternative coins") are cryptocurrencies other than Bitcoin. They were created to improve upon or offer alternatives to Bitcoin’s features. Popular altcoins include Ethereum, Solana, Cardano, and many others. Each altcoin has its own purpose—some support smart contracts, some offer faster transactions, while others focus on privacy or scalability. Altcoins play a big role in the crypto ecosystem and often drive innovation in blockchain technology.