blog

Hethers.js Being Deprecated in Favor of EVM Tooling

October 3, 2023
Hedera Team
Hedera
Hedera provides secure, scalable infrastructure for real-world decentralized applications in finance, AI, and sustainability, governed by global enterprises.

Hedera is committed to providing developers with easy-to-use and up-to-date tools and resources. With that goal in mind, Hedera core contributors are announcing the deprecation of the hethers.js library by October 20, 2023.

Why is Hethers.js Being Deprecated?

With Hedera becoming increasingly EVM-equivalent, the need to maintain a separate library like hethers.js is diminishing.

  • Native EVM tooling like ethers.js and web3.js, enabled by the JSON-RPC Relay, can now be used to deploy and interact with Hedera smart contracts.

  • Focusing on EVM tooling provides a more unified developer experience. Developers who are familiar with Ethereum can now easily transition to building on Hedera.

  • Deprecating hethers.js reduces redundancy and consolidates the toolset developers need to work with.

Action for Developers Currently Using Hethers.js

If you currently use hethers.js, you should transition to ethers.js, web3.js, or other EVM tooling before October 20, 2023.

Refer to the Hedera documentation on using tools like web3.js, ethers.js, Hardhat, Foundry, Truffle, and The Graph. Tutorials can be found in the smart contract section.

While hethers.js will remain available on GitHub, it will no longer receive official support and updates after the deprecation date.

Please share any feedback or questions via the #feedback channel on Discord. We’re here to help with the transition.

Timeline

  • Now until October 20, 2023: Transition from hethers.js to EVM tooling.

  • October 20, 2023: Official deprecation of hethers.js with no further updates or support.

Continue Learning

Back to Blog

discover

See more articles

Deploy Multichain Dapps
July 17, 2026

Deploy Multichain Dapps on Hedera in 60 Seconds with scaffold-hbar

Deploying multichain dapps on Hedera has never been easier! With just one command, you can spin up a fully functional dapp using Next.js, Hardhat or Foundry, and AI agent context…
Read More
Regulation is finding its form
July 13, 2026

Regulation is finding its form in summer 2026

Halfway through 2026, the regulatory picture is coming into focus. Hedera Chief Policy Officer Nilmini Rubin and VP Global Policy Isadora Arredondo break down what moved in June across the
Read More
Hero CLI
July 8, 2026

Hiero CLI: Practical Workflows for Hedera Developers

Hiero CLI is a command-line tool for developers working with the Hedera and Hiero ecosystems. Its purpose is not only to expose individual commands, but also make common Hedera workflows
Read More