A crypto airdrop is a distribution of free cryptocurrency tokens or coins to a specific group of holders or users. Airdrops are often used as a marketing or promotional strategy by blockchain projects to raise awareness, attract users.

These distributions can be of various sizes and are usually carried out during specific events, such as the launch of a new project, a network upgrade, or as a way to reward loyal users. Airdrops are typically conducted by sending the free tokens directly to the wallets of eligible participants. To be eligible for an airdrop, participants might need to meet certain criteria, such as holding a certain amount of a particular cryptocurrency or fulfilling specific tasks.

Airdrops can be a way for projects to bootstrap their communities, increase engagement, and create a broader user base.