10 Best JavaScript Ethereum Smart Contract Libraries
List hand-picked by Openbase ExpertsLearn More
List hand-picked by Openbase Experts
OpenZeppelin Contracts is a library for secure smart contract development.
264K
21.2K
No support
MIT
Ethereum smart contract transaction input data decoder
4K
501
Built-in
{"type":"MIT","url":"https://github.com/miguelmota/ethereum-input-data-decoder/blob/master/LICENSE"}
Hardhat is a development environment to compile, deploy, test, and debug your Ethereum software. Get Solidity stack traces & console.log.
151K
4.9K
Built-in
MIT
A tool for developing smart contracts. Crafted with the finest cacaos.
53.2K
13.8K
Built-in
MIT
A tool for developing smart contracts. Crafted with the finest cacaos.
17.6K
13.8K
Built-in
MIT
Upgradeable variant of OpenZeppelin Contracts, meant for use in upgradeable contracts.
83K
778
No support
MIT
A tool for developing smart contracts. Crafted with the finest cacaos.
955
13.8K
No support
MIT
Cryptographic javascript-functions for ethereum and tutorials to use them with web3js and solidity
12.7K
773
Built-in
MIT
Gas usage per unit test. Average gas usage per method. (eth-gas-reporter for Hardhat)
78.3K
299
Built-in
MIT
OpenZeppelin Contracts is a library for secure smart contract development.
1.8K
21.2K
No support
MIT
Wrappers for 0x smart contract wrappers generated using @0x/abi-gen
2.2K
265
Built-in
Apache-2.0
A tool for creating a local blockchain for fast Ethereum development.
6K
2.2K
Built-in
MIT
A tool for creating a local blockchain for fast Ethereum development.
5.3K
2.2K
Built-in
MIT
A JavaScript library for interacting with the Request Network protocol
848
361
Built-in
MIT
A new modular DAO framework, inspired by the Moloch smart contracts
345
276
No support
MIT
JavaScript SDK for the OpenSea marketplace. Let your users buy or sell cryptogoods on your own site!
4.4K
2.1K
Built-in
MIT
Hardhat is a development environment to compile, deploy, test, and debug your Ethereum software. Get Solidity stack traces & console.log.
107K
4.9K
Built-in
MIT
Hardhat is a development environment to compile, deploy, test, and debug your Ethereum software. Get Solidity stack traces & console.log.
84.8K
4.9K
Built-in
MIT
Hardhat is a development environment to compile, deploy, test, and debug your Ethereum software. Get Solidity stack traces & console.log.
71.2K
4.9K
Built-in
MIT
Assertion library for Ethereum smart contract testing
15.7K
367
No support
MIT
A tool for creating a local blockchain for fast Ethereum development.
350
2.2K
Built-in
MIT
Hardhat is a development environment to compile, deploy, test, and debug your Ethereum software. Get Solidity stack traces & console.log.
13.9K
4.9K
Built-in
MIT
Truffle Flattener concats solidity files from Truffle and Buidler projects with all of their dependencies
10.2K
325
No support
MIT
Hardhat is a development environment to compile, deploy, test, and debug your Ethereum software. Get Solidity stack traces & console.log.
10.1K
4.9K
Built-in
MIT
0xcert Framework - JavaScript framework for building decentralized applications - build something unique
1.5K
334
Built-in
MIT
Buidler is an Ethereum development environment. Compile your contracts and run them on a development network. Get Solidity stack traces & console.log.
1.4K
5.1K
Built-in
SEE LICENSE IN LICENSE
0xcert Framework - JavaScript framework for building decentralized applications - build something unique
1.4K
334
Built-in
MIT
Buidler is an Ethereum development environment. Compile your contracts and run them on a development network. Get Solidity stack traces & console.log.
202
5.1K
No support
MIT
0xcert Framework - JavaScript framework for building decentralized applications - build something unique
184
334
Built-in
MIT
Buidler is an Ethereum development environment. Compile your contracts and run them on a development network. Get Solidity stack traces & console.log.
180
5.1K
Built-in
MIT
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