web3.js

viem

wevm/viem

TrendingPopular

Lightweight, type-safe, tree-shakeable TypeScript interface for Ethereum; now the most downloaded EVM client.

ethers.js

ethers-io/ethers.js

Popular

Compact, battle-tested JavaScript library for Ethereum wallets, providers and contracts; huge installed base.

wagmi

wevm/wagmi

Popular

React (and Vue) hooks built on viem for wallet connection, contract reads/writes and caching in dApps.

web3.py

ApeWorX/web3.py

Popular

Python library for interacting with EVM chains (originally EF, now stewarded by ApeWorX); standard for Python backends.

Solana Kit

anza-xyz/kit

Rising

Modular, tree-shakeable successor to @solana/web3.js from Anza, with React hooks and typed RPC.

Solana web3.js

solana-foundation/solana-web3.js

Legacy

Classic 1.x Solana JavaScript SDK still in many apps; in maintenance mode in favor of Solana Kit.

Alloy

alloy-rs/alloy

Popular

High-performance Rust toolkit for EVM RPC, ABI and signing; replaced ethers-rs and powers Reth and Foundry.

RainbowKit

rainbow-me/rainbowkit

Polished React wallet-connection modal built on wagmi, with theming and support for most EVM wallets.

Reown AppKit

reown-com/appkit

Popular

Wallet connection, social login and onramp SDK from Reown (formerly WalletConnect) for EVM, Solana and Bitcoin.