Web3 keeps evolving fast — new chains, tokens, exchanges, SDKs. For developers, that means more tools and complexity.
Here are 5 libraries I rely on in 2025 to build secure, scalable Web3 projects and integrate with exchanges like WhiteBIT.
Foundry — fast Solidity toolkit
- Built in Rust, runs tests 10–20× faster than alternatives
- Supports fuzz testing, mainnet forking, gas reports
- CLI-first, great for audits and rapid development
Hardhat — popular JS/TS dev environment
- Rich plugin ecosystem (TypeChain, Waffle, ethers.js)
- Debugging and stack traces for contracts
- Easy MetaMask integration
Ethers.js — lightweight Web3 library
- Compact (~88KB) with TypeScript support
- Works seamlessly with Infura, Alchemy, custom RPC
- Used for integrating with APIs like WhiteBIT to track tokens activity
OpenZeppelin — secure, audited contracts
- Trusted implementations of ERC20, ERC721, AccessControl
- Supports upgradeable contracts via proxies
- Defender tool for safe contract management
The Graph — querying on-chain data easily
- Create Subgraphs to index data from Ethereum, Base, Arbitrum, Solana, etc.
- Used by projects (including WhiteBIT) to analyze tokens flows
- Supports high-performance data streaming with Substreams
My real-world use case - monitoring token activity
I built an analytics dashboard combining several tools. Ethers.js is used to connect to the Ethereum network, The Graph helps to fetch the token’s transaction history. OpenZeppelin together with Foundry are used for developing and testing smart contracts. The platforms API allows syncing on-chain and off-chain data. This stack enabled rapid creation of a minimum viable product (MVP) with real-time data.
In 2025, Web3 devs must use reliable, efficient tools. These five libraries are foundational - whether you’re building NFTs or integrating with exchanges like ByBit, WhiteBIT etc.
💬 Share your favorite Web3 libraries in the comments!
Disclaimer: Mentions of exchanges (WhiteBIT, Binance, OKX, etc.) are for demonstration only. This post is not sponsored.
Top comments (1)
Solid stack! We’ve been working on something that complements this toolkit well. At haveto.com, we're making it possible to run AI directly on the blockchain, without external servers.
Think Foundry-level performance + OpenZeppelin-level security, but for AI workloads, all on-chain.
Supports any language via Docker-style smart contracts, and yes, auto-scaling and sharding are built-in.
If you’re building apps that combine AI + Web3, this might be your next go-to tool.
Always happy to connect with fellow builders.