A Linux Foundation Decentralized Trust project

Hiero

Open-source, vendor-neutral distributed ledger technology, developed in the open and used to build networks including the Hedera public network.

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  • 44 Public repositories
  • 3,060 GitHub stars
  • 12 Community calls

Principles

What is Hiero?

Hiero, a Linux Foundation Decentralized Trust project, is an open-source, vendor-neutral distributed ledger technology. Hiero is used to build networks like Hedera.

  • Hiero is fair

    Public forums should be equally accessible. No one should manipulate your transactions to their advantage. Hashgraph is leaderless - toward a fairer world.

  • Hiero is fast

    Do not sacrifice performance for fairness or security. As businesses and networks expand rapidly, waiting for transactions to finalize no longer meets your needs. The hashgraph algorithm is fast.

  • Hiero is secure

    The hashgraph algorithm is the gold standard - asynchronous Byzantine Fault Tolerant (ABFT). Your transactions are protected with the highest security.

  • Hiero is decentralized

    No single entity should control your future. Power is shared among participants with equal access, securing the network and your data. You can participate in its development and use. This network belongs to the world and the future.

  • Hiero is leaderless

    Leader-based consensus is unfair and either slow or vulnerable to attacks. We believe in a fully leaderless protocol where every node participates equally. Our protocol is resistant to denial-of-service and prevents centralization.

  • Hiero is open

    Hiero's vibrant community builds a fairer, more efficient, and secure world. As part of the Linux Foundation Decentralized Trust initiative, it pioneers open governance and collaboration.

Contribute

Jump to Open Issues

Find issues that match your skill level and start contributing to the Hiero ecosystem today.

  • Open
  • Unassigned
  • Active repositories

  1. Good First Issue

    Ideal for first-time contributors new to the project.

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  2. Beginner

    Straightforward tasks that need light domain knowledge.

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  3. Intermediate

    Moderately complex issues for developers gaining experience.

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  4. Advanced

    Challenging issues requiring deep technical expertise.

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Community

Join our Hiero Community Calls

Join our open meetings to collaborate with the team. Register here or view schedules on the LFX Calendar.

12 community calls open to take part in

Events

Where the community meets

Community days, meetups and university workshops, with photos and recaps from the Hiero blog.

Berlin, Germany

Hiero Community Day 2026 Launched in Berlin

The first in person Hiero Community Day in Berlin concludes with great success!

Read the recap

Hosted a Hiero meetup, talk or workshop? Write it up for the blog and it will show up here.

Codebase

Jump to our Hiero Repositories

Explore some of our most active and widely used Hiero repositories. These projects form the core of the Hiero ecosystem.

  • Open source
  • GitHub hosted
  • Community maintained

Explore the complete Hiero codebase on GitHub.

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