Hiero

Open Source Distributed Ledger Technology

What is Hiero?

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

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.

Why is Hiero Open Source?

The goal of Hiero is to build a diverse community of developers and innovators making the world fairer, faster, and more secure. Hiero's source is accessible so anyone can advance the project. As a decentralized network used by enterprises and critical infrastructure, it must remain vendor-neutral and fully auditable.

What parts of Hiero are Open Source?

Hiero is fully open source. While its transition to Linux Foundation Decentralized Trust continues, additional contributions are available in Hedera’s GitHub organization. The technical steering committee (TSC) of Hiero will initially oversee adding projects needed for an enterprise-ready decentralized network to a new Hiero GitHub organization. See the roadmap for more details.
“Hedera's participation in Linux Foundation's Decentralized Trust will undoubtedly accelerate development, enhance security, and foster unprecedented collaboration within the Hedera ecosystem, positioning it at the forefront of blockchain innovation. As the leading wallet on the network, HashPack is committed to playing an active role in this new open source structure, and we look forward to contributing our expertise to help shape the future of Hedera and the broader decentralized technology landscape.”
May Chan, CEO, HashPack
“By contributing its codebase to the Linux Foundation's Decentralized Trust, Hedera is demonstrating the ultimate commitment to open development. As a leading data infrastructure provider in the ecosystem, Hgraph is actively dedicated to supporting the Hiero project as it transforms the open source DLT space and empowers the Hedera developer community.”
Tyler McDonald, CEO, Hgraph
“The HBAR Foundry community is excited to see the contribution of the Hedera software to the Linux Foundation Decentralized Trust project. We're delighted to see Hedera's commitment to growing an independently governed and transparent community with more resources and opportunities to engage and grow the ecosystem.”
The HBAR Foundry, A Community Of Expert Hedera Builders
“Hedera's contribution of its codebase to the Linux Foundation's Decentralized Trust initiative is great news for SentX.io. By open-sourcing the Hashgraph technology, Hedera is reinforcing its commitment to innovation and decentralization. We expect this move to boost developer engagement, speed up the adoption of decentralized applications, and attract more retail users, driving growth across the ecosystem.”
Sam Jimenez & Patrícia Carapinha, Founders, SentX.io
“Transferring ownership of Hedera's codebase to the Linux Foundation Decentralized Trust project is a testament to the power of open collaboration and meritocracy. This landmark initiative will empower developers, entrepreneurs, and enterprises to actively participate in shaping the future of Hedera. We are thrilled to be part of this vibrant ecosystem and look forward to contributing to its growth and success.”
Ivan Saiz, CTO, ioBuilders
“Hedera's contribution of its codebase to the Linux Foundation's Decentralized Trust entirely reshapes decentralized governance. At Calaxy, we view this as more than an infrastructure change - it's a move that drives real-world innovation. Developers now have greater autonomy and access to tools to build more inclusive, user-driven applications. We're excited to see how this enables devs to push the boundaries of creator-focused economies and further integrate blockchain into our everyday social experiences and relationships.”
Solo Ceesay, CEO & Co-founder, Calaxy
“Hedera's decision to open-source its codebase under the Linux Foundation Decentralized Trust is a monumental leap forward for the entire blockchain industry. This bold move not only underscores Hedera's commitment to decentralization and transparency but also paves the way for unprecedented community-driven innovation. We are excited to collaborate with the growing ecosystem to build a future where the possibilities are limitless.”
Rajiv Sohal, CTO, Diamond Standard
“This contribution represents a historic moment in the evolution of decentralized networks and is setting a precedent for transparency and collaboration in the blockchain industry. By contributing our codebase to LF Decentralized Trust, as project Hiero, we are reaffirming our commitment to open governance and collaboration. LF Decentralized Trust's mission to advance decentralized systems aligns perfectly with our own goals. We look forward to providing developers with unmatched access to tools and resources, creating an environment where decentralized applications can truly thrive.”
Charles Adkins, President, Hedera
“By contributing Hiero to the Linux Foundation, an organization with a long history of supporting open source and open innovation, Hedera demonstrates to Council Members, ecosystem partners, grantees, and the builder community that it is committed to growing the capabilities of its network through transparency and meritocracy.”
Dr. Leemon Baird, Inventor, Co-founder, & Chief Scientist, Hashgraph