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Benefits of the Chromia blockchain

Chromia is an advanced Layer-1 blockchain ecosystem that developers use to create high-performance and scalable decentralized applications (dapps). This platform enables developers to build dapps that support millions of users while providing a smooth and user-friendly experience.

Key features​

  • Gas-free transactions: Chromia removes gas fees, allowing users to interact with dapps at no cost. This eliminates financial barriers and promotes broader adoption.
  • Blockchain data storage: Developers can store large amounts of data directly on the blockchain, enabling sophisticated applications like gaming, digital assets, and enterprise solutions to operate seamlessly on-chain.
  • Scalable performance: Each dapp runs on its own dedicated blockchain, ensuring high performance without congestion, even during peak usage times.

Chromia serves as the ideal choice for developing innovative dapps across various industries, including Web3 gaming, real-world assets, DeFi, DAOs, NFTs, cloud storage, and more.

Multichain design​

Chromia's multichain architecture enhances scalability by running each dapp on its dedicated blockchain. This setup allows each blockchain to handle transactions, store data, and be accessible to network participants who need to query information. Dapps can communicate using proprietary protocols. Thus, one blockchain may represent one dapp, and vice versa.

By assigning an individual blockchain to each dapp, Chromia enables the creation of efficient and high-performing decentralized systems. This approach ensures that dapps maintain their performance, even under heavy loads, without affecting the overall network, thus preventing global congestion.

Dapps organize into clusters, with the Cluster Anchoring Chain serving as the central component of each cluster. When a dapp blockchain generates new blocks, it transmits the relevant information to the Cluster Anchoring Chain for validation and security.

The Chromia network supports an unlimited number of dapp clusters, each following this architectural model. All Cluster Anchoring Chains within these clusters connect to the System Chain, which serves as the core of the entire Chromia network.

On-Chain dapps and NFTs​

Chromia distributes storage and computational resources among provider nodes, allowing dapps to store program logic, metadata, and entire files directly on-chain. This distribution facilitates the development of intricate and fully decentralized applications.

NFTs on Chromia can store all associated metadata and images directly on-chain, unlike NFT tokens on EVM chains, which often rely on external services for metadata and image storage.

Rell programming language​

Chromia utilizes Rell, a programming language specifically designed for dapp development within the relational data model. Rell's concise syntax allows developers with database experience to build sophisticated and secure dapps quickly.

Advantages over EVM-based blockchains​

For developers coming from EVM platforms like Ethereum, Chromia offers a number of architectural and developer experience advantages:

  • No gas fees for users — Chromia uses resource leasing instead of per-transaction gas, allowing free user interactions and simpler UX design.
  • Relational on-chain state — Dapp data is stored in structured, queryable tables instead of logs and mappings.
  • Built-in automation — Chromia dapps can run code automatically when blocks are produced, using special operations like begin_block and end_block, without relying on off-chain schedulers or bots.
  • Cleaner developer experience — Rell provides a readable, SQL-inspired language familiar to backend developers, with structured operations and queries.

Next, you'll see a direct comparison between Chromia and EVM development to better understand these differences.

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For a more detailed understanding of the Chromia blockchain platform, refer to the Chromia White Paper.