• IOTA, EOS, Ripple R3 Corda, Qtum ,Ripple, R3 Cords, Hyperledger Fabric, Ethereum, and Quoru are among the most popular platforms for developing blockchain applications.
• Ethereum is one of the most well-known and widely used blockchain platforms. It offers a genuinely decentralised blockchain network that is comparable to the Bitcoin network.
• Hyperledger Fabric is a collection of tools for building blockchain applications. It was designed from the ground up with enterprise distributed ledger applications in mind, according to The Linux Foundation. It has a diverse ecosystem of components that can be connected to a modular design.
• Hyperledger Sawtooth, another open source blockchain project co-founded by Hyperledger and The Linux Foundation, employs a novel consensus mechanism known as proof of elapsed time, which can be combined with hardware-based security technologies to enable 'trusted execution environments' of programme code to run in secure enclaves, which are secure areas of computer memory.
• R3 Corda is debated as to whether it is a blockchain or an other form of distributed ledger. It employs a new consensus technique that cryptographically links transactions but does not group many transactions into a block on a regular basis.
• In 2018, the EOSIO blockchain platform was released as an open source project. It's designed for building decentralised apps and smart contracts.

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