BlockFleaBlockFlea
Smart Contracts

Clarity

Bitcoin's native smart contract language, designed for security and predictability. Interpreted and decidable — no compiler bugs, full static analysis, complete runtime cost prediction. Contracts read Bitcoin state directly and settle on Bitcoin. Powers DeFi, NFTs, DAOs, and the BNS naming system on the Stacks layer.

Visit Website Open Interactive Profile

Supported Chains

Bitcoin

Best For

Clarity is useful for builders evaluating Smart Contracts across Bitcoin.

Related Tools

ClarinetThe go-to CLI dev environment for Clarity smart contracts on Stacks. Write, test, lint, and debug...Hiro PlatformHosted dev platform for Stacks and Bitcoin apps by Hiro Systems. Cloud devnet for rapid iteration,...MiniscriptA structured language for writing Bitcoin Scripts enabling analysis, composition, and generic signing....ord (Ordinals CLI)The reference implementation and CLI tool for Bitcoin Ordinals by Casey Rodarmor. Enables inscribing...PolarOne-click local Lightning Network for development & testing. Spin up multi-node regtest networks in...Rootstock (RSK)The longest-running Bitcoin smart contract platform, merge-mined with 80%+ of Bitcoin's hashrate. Fully...