All algorithms.

Mining algorithms are cryptographic hash functions used to validate transactions and secure blockchain networks. Each cryptocurrency uses a specific algorithm (e.g., SHA-256 for Bitcoin, Scrypt for Litecoin, Ethash for Ethereum Classic). Different algorithms require different types of hardware — some are optimized for ASICs, others for GPUs or CPUs.

The most profitable algorithm changes frequently based on coin prices, network difficulty, and your hardware. Check the rankings on this page for the current most profitable algorithm per standard hash unit. Profitability also depends heavily on your electricity cost.

ASIC-mineable algorithms (like SHA-256 and Scrypt) have dedicated hardware built specifically for them, offering much higher hashrates and efficiency. GPU-mineable algorithms (like Ethash, KawPow) can be mined with graphics cards, offering more flexibility to switch between coins. Some algorithms are designed to be ASIC-resistant to keep mining accessible to GPU miners.