Hedera Contract Builder

Scaffold, compile, deploy, and verify Solidity contracts on Hedera testnet all from your browser with this interactive playground. No CLI, no local setup. Built in collaboration with Kabila and open source.

Need more room? Open it full-screen at portal.hedera.com/contract-builder.

What you can build

Token contracts — ERC-20, ERC-721, and ERC-1155 templates with mintable, burnable, pausable, and permit options.
Hedera system contracts — call HTS, the Account Service, and Schedule Service directly from Solidity.
One-click verify — push the contract to Sourcify so the source shows up on HashScan.
Call functions in place — exercise deployed contracts from the same UI to test logic before wiring up a frontend.

Next steps

Connect MetaMask

Wire MetaMask to Hedera testnet so the Contract Builder can deploy from your wallet.

Move to Hardhat

When you’re ready for tests, CI, and a real codebase, port your contract into a Hardhat project.

Or try Foundry

Prefer a Solidity-native, fast test runner? Use Foundry instead. An HTS-aware forking included.