TronWeb: whose main purpose is to connect develope

TronWeb: whose main purpose is to connect developers to the blockchain. It aims at offering a unified and seamless development experience. TronWeb is similar to Ethereum’s Web3, but has a different implementation process. TronWeb requires both a Full Node and a Solidity Node that runs on the HTTP API. TronWeb can also be used to send, purchase, and freeze/unfreeze TRX and other tokens
TronBox: a framework environment that allows developers to test and deploy their smart contracts
TronStudio: a comprehensive IDE with an embedded TRON Virtual Machine (TVM). It has an internal full node that creates a private local environment for the developer to test their smart contracts before deployment. Its defining feature is that it allows developers to interact with their Solidity based smart contracts in a user friendly environment
TronGrid: offers a similar use case with Infura on the Ethereum platform by providing developers access to the TRON Network. TronGrid allows developers to build and release their dapps and smart contracts.
More on these tools can be found on the Tron Developer Hub that is available online.