List of the Best Open Source Blockchain Platforms You Need To Know in 2025

Blockchain technology has emerged to be one of the latest developments and biggest technologies of the modern-day internet, transforming various industries. Multiple blockchain development companies and startups have been building blockchain platforms that are either open source or proprietary.

An open source platform has its source code publicly available to everyone, which means anyone can read, modify, copy the code, or validate transactions on the platform. The nature of a blockchain platform (whether open source or closed source) will have varying implications for individuals or organizations that adopt these platforms or choose to build on them. In this article, we’ll explore the best blockchain open source platforms and all you need to know about them.

Open source projects play a crucial role in the development of blockchain technology, driving innovation and enabling a collaborative community to contribute to these platforms.

• Blockchain platforms can either be open to the public (open source) or owned by a corporate entity (proprietary).
• In open source blockchain platforms, all individuals have the same rights and anyone can participate in validating network transactions. Platform governance is consensus-based and developers can also make improvements to the source code. 
• Open-source blockchain technology is known to foster an environment of collaboration and innovation while ensuring open accessibility to all users.

What is an Open-Source Blockchain Platform?

There are different blockchain types available. The best blockchain platforms can either be open to the public (open source) or owned by a corporate entity (proprietary). So, what is open-source blockchain? An open-source blockchain platform is a type of public blockchain platform where anyone can join and participate in validating network transactions, often providing an ideal foundation for technologies like blockchain and IoT integration.

Organizations are using open source blockchain platforms to implement solutions, build decentralized applications, and create smart contracts by leveraging modular components and frameworks.

This is in contrast to a private blockchain platform, which is controlled by a single entity and only employees or partners of that corporate entity are allowed to join, read, and add data to the ledger. Such platforms are commonly associated with blockchain as a service (BaaS) offerings, where enterprises can access blockchain capabilities without managing the infrastructure themselves.

On open source blockchain platforms, all individuals have the same rights and everyone is kept anonymous. Each individual on the network is assigned a unique cryptographic code, which can either be a public or private key. Unlike private or enterprise blockchain platforms, no single entity can override, edit, or replace the data on an open-source blockchain network. For those new to the concept, understanding what is a blockchain network is essential—it is a decentralized system where data is recorded across multiple nodes, ensuring transparency, security, and immutability without relying on a central authority.

Open source blockchain platforms can also be extended with services such as professional support, security audits, and integration assistance to enhance deployment, management, and compliance.

Key Open Source Blockchain Features and Advantages

To choose the best blockchain open source software for personal or corporate use, you’ll have to compare the pros and cons of open source platforms to that of private platforms. Generally, open-source blockchain technology is known to foster an environment of collaboration and innovation while ensuring accessibility for users. 

This makes it a powerful tool for developing scalable decentralized blockchain applications. Here’s a closer look at some of the reasons you might want to choose open source blockchain over enterprise blockchain technology. 

Interoperability

Open-source blockchain platforms offer more flexibility and also tend to be quite compatible with other platforms or external systems. This makes them particularly suitable for projects where interoperability with multiple networks or systems is a priority.

For instance, when building supply chain management projects that leverage blockchain technology, multiple systems will have to be integrated for a complete interconnected system. The interoperability needed for such large-scale projects is significantly easier to handle when the different components are being built on an open-source platform. 

Customization

With enterprise or proprietary blockchain platforms, the extent of customization depends on how far the corporate entity behind the project wants it to go. One thing that open-source blockchain software users enjoy is the freedom to customize and adapt the blockchain technology to their specific business needs. This is valuable for building an open source blockchain project that needs to be tailored to the unique needs of your organization.

Collaboration & Innovation 

On open-source platforms, there’s a large community of developers and contributors working together to improve the platform source code. A collaborative environment like this fosters innovation as users build upon existing technologies since it brings diverse perspectives and skill sets together. 

Trust & Transparency

Open source solutions perfectly capture one of the biggest benefits of blockchain technology which is transparency. Although proprietary blockchain platforms still operate on a public ledger system, fewer users are required to verify financial transactions. 

The entity behind a private blockchain can also override, edit, or delete unnecessary entries, which isn’t possible on public networks. The transparent nature of open-source platforms makes them suitable for projects where trust is a priority. 

Affordability 

Most open-source platforms are free or super affordable because they do not charge users a licensing fee. This makes them a cost-effective solution, especially for organizations, startups, and non-profits on a limited budget.

Open source blockchain platforms truly democratize access to cutting-edge solutions, creating opportunities for growth and development regardless of how much you can afford to spend.  The apps built with these platforms are also scalable with low latency which further reduces costs.

Blockchain Security

Security is at the heart of every successful blockchain project, and open source blockchain platforms are no exception. By making their source code publicly available, platforms like Hyperledger Fabric and Ethereum invite scrutiny from a global community of developers, which helps identify and resolve vulnerabilities quickly. This transparency, combined with the use of advanced cryptographic techniques and secure protocols, ensures that blockchain networks remain robust against attacks and unauthorized access.

The Linux Foundation’s Hyperledger project, for example, offers a comprehensive framework for building secure and efficient blockchain networks tailored to enterprise needs. Smart contracts—self-executing agreements coded directly onto the blockchain—further enhance security by automating transactions and reducing the risk of human error or manipulation. Open source blockchain technology empowers developers to build applications that meet the highest standards of security and trust, making it a reliable choice for businesses and organizations seeking to protect sensitive data and digital assets.

By leveraging open source tools and frameworks, developers can continuously improve the security of their blockchain applications, ensuring that every transaction on the network is validated, transparent, and tamper-proof. This commitment to security is a key reason why open source blockchain platforms are trusted by industries worldwide.

Scalability and Performance

As blockchain technology gains traction across industries, scalability and performance have become critical factors in the adoption of open source blockchain platforms. Leading projects like Ethereum and Hyperledger Fabric are at the forefront of innovation, implementing solutions such as sharding, off-chain transactions, and parallel processing to boost the throughput and efficiency of blockchain networks.

Sharding, for instance, divides the blockchain into smaller, manageable pieces, allowing multiple transactions to be processed simultaneously. Off-chain transactions reduce the load on the main blockchain, enabling faster and more cost-effective processing. Distributed ledger technology and parallel execution further enhance the performance of blockchain platforms, making them suitable for high-volume, real-time applications.

These advancements allow developers to build blockchain applications that can handle thousands of transactions per second, meeting the demands of industries ranging from finance to supply chain management. By choosing open source blockchain solutions, organizations benefit from ongoing improvements in scalability and efficiency, ensuring their blockchain networks can grow and adapt alongside their business needs.

Top Open Source Blockchain Projects in 2025

There are several top open-source blockchain platforms that serve as the foundation of various decentralized projects or applications being built for various industries. These platforms, often supported by leading blockchain providers, offer unique features and capabilities while enabling developers to build innovative blockchain solutions tailored to different industries. Here are a few of the top open-source blockchain platforms to consider. 

Ethereum 

Ethereum was introduced in 2013, which means it is one of the oldest platforms in the blockchain space, with a popularity level almost on par with Bitcoin. Although it has its own native cryptocurrency and powers digital assets, Ethereum is more well-known as a versatile open-source platform for creating and deploying decentralized applications (dApps). It’s the perfect solution to adopt if you want to build an open source project on a decentralized network.

In addition to building decentralized applications, Ethereum is also famous for its self-executing contracts which ensure efficient, secure, and transparent digital transactions. 

In the past, Ethereum transactions were verified through a Proof-of-Work system where miners create new blocks by solving complex mathematical puzzles. This was found to be costly and energy-intensive. Consequently, the Ethereum platform adopted a Proof of Stake consensus mechanism where participants validate transactions by staking their own cryptocurrency as collateral.

Hyperledger Fabric 

Hyperledger Fabric is a blockchain development framework by the Linux Foundation. Although it is an open-source platform, it is focused on permissioned, private blockchain networks, which means all participants still have to be verified and authenticated. This extra layer of transparency makes it easier for enterprises to adopt the Hyperledger Fabric platform for their blockchain development needs. 

As a massive open source platform, more than 15,000 engineers and 120,000 organizations currently collaborate on the Hyperledger Fabric platform. Hyperledger Fabric is a distributed ledger platform with a modular architecture. This means it consists of various components organized in the form of pluggable installations that facilitate the quick and efficient development of scalable decentralized apps.

Transactions on this platform are facilitated by consensus algorithms like Practical Byzantine Fault Tolerance (PBFT), RAFT and Solo. The use of multiple consensus algorithms enables enterprises on the network to choose the consensus mechanisms that are most suitable for their needs. 

Corda 

The Corda platform is an interoperable, open network where organizations can collaborate seamlessly and transfer value directly in a trusted environment. Corda uses a completely novel consensus mechanism to facilitate low cost transactions and sensitive data transfer on its network.

Although transactions are cryptographically linked, they’re not grouped into blocks as in the standard blockchain. The implication of this is that transaction processing is quick and in real time.

The biggest application of the Corda Network is still in the financial industry where it has received widespread adoption because it facilitates quick transactions and secure data exchange. However, it has also been adopted across several other industries as well including healthcare, and insurance, and supports digital assets like non fungible tokens. 

Tezos 

Tezos is a decentralized smart contracts and applications development platform. It is a user-governed and user-centric platform designed to evolve as developers actively participate to validate transactions, evaluate the platform, and propose changes to the platform’s blockchain frameworks. 

As a decentralized finance platform, Tezos is powered by a Proof of Stake consensus algorithm which is more lightweight and efficient compared to other Blockchain implementations. 

The Tezos platform is built on a dynamically upgradable protocol (you will learn what is a blockchain protocol in one of our articles) that users can adapt to their specific needs. Developers can add new key features to the Tezos platform without forking the entire system thanks to the on-chain upgrade mechanism. Tezos is supported by an active developer community that has implemented various enhancements to the platform such as improving performance and increasing the size limit on smart contracts. 

ConsenSys Quorum

The Quorum blockchain platform was originally developed by JPMorgan Chase. The core framework of this platform was built on the Ethereum platform and has been optimized to support high-speed transactions on a secure network. Consequently, Quorum has been heavily adopted by companies in the financial sector looking to build high-performance applications for trade finance, supply chain finance, and the tokenization of financial assets.

In 2021, ConsenSys bought Quorum from JPMorgan and subsequently integrated the platform’s assets into its own work to create the ConsenSys Quorum open source protocol layer. This protocol can be used by enterprise clients to accelerate the development of enterprise applications and tools to complement other Ethereum-based technologies. 

Despite being a publicly accessible platform, Quorum distinguishes itself by offering robust privacy features and ensuring the confidentiality of all transactions thanks to a permissioned modular architecture. 

Avalanche 

Avalanche is an open-source blockchain system designed for building decentralized apps and creating custom blockchain networks. However, it can also be used for general-purpose smart contract execution. The unique framework of this blockchain software allows multiple stakeholders to create an independent but interconnected blockchain database that is securely validated by a dynamic set of users. 

The system is generally governed by the proof-of-stake mechanism, with only a small, random subset of network participants needed to confirm transactions. Avalanche is used for building custom blockchain apps with a specific focus on scalability, flexibility and performance. 

EOSIO

EOSIO is an open-source blockchain protocol launched in 2018. It is a smart contracts platform optimized for the development of decentralized applications with great speed and flexibility. In addition to validating transactions through a proof of stake system, EOSIO also supports a consensus-based governance system which gives all users equal opportunities to vote on changes to be made to the platform. 

The EOSIO platform is suitable for enterprise-grade use cases and has also been adopted for public and private deployment. Thanks to its open-source nature, the platform is customizable to suit a wide range of business needs across industries. So far, more than 400 decentralized apps have been built on this platform.

Use Cases and Applications

Open source blockchain technology is transforming industries by enabling a wide array of innovative applications. From finance and supply chain management to healthcare and digital identity, open source blockchain platforms like Hyperledger Fabric and Ethereum provide the foundation for building secure, transparent, and efficient solutions.

In the financial sector, smart contracts automate complex transactions, reducing costs and increasing trust between parties. Supply chain management benefits from blockchain’s ability to track goods across the entire chain, ensuring transparency and authenticity at every step. In healthcare, blockchain-based identity management systems protect patient privacy while streamlining access to medical records.

The flexibility of open source blockchain platforms allows businesses to create tailored solutions that address their unique challenges. Whether it’s improving efficiency, enhancing security, or building trust with customers and partners, the implementation of open source blockchain technology is driving innovation and delivering real value across various industries.

Development Tools and Frameworks

Building robust blockchain applications requires powerful development tools and frameworks, and open source blockchain platforms deliver just that. Ethereum and Hyperledger Fabric, for example, offer a rich ecosystem of tools that support every stage of the development process—from writing and testing smart contracts to deploying decentralized applications.

Popular tools like Truffle Suite and Web3.js make it easy for developers to create, test, and deploy Ethereum-based applications, while the Hyperledger Fabric SDK provides comprehensive support for building enterprise-grade solutions. These open source tools are designed to streamline development, reduce complexity, and enable rapid innovation.

By leveraging these frameworks, developers can focus on creating high-quality blockchain applications that are scalable, secure, and tailored to the needs of various industries. The open source nature of these tools ensures continuous improvement and support from a vibrant global community, making it easier than ever to bring new blockchain solutions to life.

Future Outlook and Trends IN OPEN SOURCE BLOCKCHAINS

The future of open source blockchain technology is bright, with continuous advancements in scalability, security, and usability shaping the next generation of blockchain platforms. Projects like Ethereum and Hyperledger Fabric are leading the way, evolving to meet the changing needs of businesses and developers across the globe.

As blockchain adoption accelerates in industries such as finance, supply chain, and healthcare, we can expect to see even greater innovation and the emergence of new use cases. Trends like decentralized finance (DeFi) and non-fungible tokens (NFTs) are expanding the possibilities of blockchain technology, driving the creation of novel applications and business models. This progress fuels the ongoing debate around is blockchain the future, as more organizations explore its potential to revolutionize traditional systems.

By embracing open source blockchain platforms and tools, developers and organizations can stay ahead of the curve, building solutions that are secure, scalable, and adaptable to the demands of a rapidly evolving digital landscape. The ongoing collaboration and innovation within the open source community will continue to shape the future of blockchain technology, unlocking new opportunities and delivering value across various industries.