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#2 Substrate
Parity’s modular toolkit for building purpose‑built blockchains, powering the Polkadot ecosystem with rich runtime APIs and a flexible consensus layer.
Permissioned enterprise blockchain framework from the Linux Foundation, offering pluggable consensus, private channels, and chaincode smart contracts.
Public smart‑contract platform with a mature ecosystem; developers use Solidity with tooling like Hardhat or Truffle to build dApps on EVM‑compatible chains.
#5 Solana
High‑throughput blockchain with a Rust‑based development kit, offering low‑latency transaction processing and a growing DeFi ecosystem.
Framework for creating custom subnets (independent blockchains) on Avalanche, supporting Solidity, Go, and Rust smart contracts.
#7 Algorand
Pure‑proof‑of‑stake blockchain with a developer‑friendly SDK (Python, JavaScript, Go) and atomic transfers for fast, low‑cost transactions.
Sharding‑enabled blockchain with the NEAR SDK (Rust, AssemblyScript) and a focus on developer ergonomics and scalability.
#9 Corda
R3’s permissioned DLT platform designed for regulated industries, featuring CorDapps written in Kotlin/Java and a notary service for consensus.
#10 Quorum
Enterprise‑grade Ethereum fork from ConsenSys, offering private transaction capabilities and permissioned network management.
#11 Hyperledger Besu
Ethereum client written in Java, supporting both public and permissioned networks with robust tooling for enterprise use.
#12 EOSIO
High‑performance blockchain platform using WebAssembly smart contracts (C++/Rust) with delegated proof‑of‑stake consensus.
#13 Tron
EVM‑compatible blockchain with its own development suite (TronWeb, Java SDK) for building high‑throughput dApps.
Framework for building parachains that connect to the Polkadot relay chain, leveraging Substrate’s runtime modules.
Functional programming based smart‑contract platform with Plutus (Haskell) and Marlowe (DSL) for financial contracts.
Move language and VM for building safe, verifiable smart contracts, originally from the Diem project.
#17 Kadena
Hybrid blockchain offering a high‑throughput chain (Chainweb) and Pact smart‑contract language with formal verification.
#18 Aptos
Layer‑1 blockchain using the Move language, focusing on scalability, safety, and developer experience.
#19 StarkNet
Permissionless ZK‑Rollup platform on Ethereum, with Cairo language SDK for building scalable dApps.
#20 Arbitrum
Optimistic Rollup solution for Ethereum, providing SDKs and tooling to deploy high‑throughput contracts with low fees.
Modular blockchain platform with support for multiple consensus algorithms and transaction families written in Python, Go, or Java.