Every developer knows that having the right tools is half the battle. But with so many resources out there, it’s easy to get lost. Here’s a list of 10 awesome websites and services that can help both beginners and experienced devs.
And if you’re into crypto and Web3, you’ll be happy to know that many of these tools are great for blockchain development as well.
🔹 1. DevDocs.io – One-stop documentation hub
📌 DevDocs.io
This site combines all the key programming language and framework documentation in one place. JavaScript, Python, CSS, Rust—everything you need, even offline.
Why is it useful for crypto?
🔗 If you’re working with Web3.js, Ethers.js, or Solidity, this is a must-have reference for blockchain development.
🔹 2. Roadmap.sh – Learn step by step
📌 Roadmap.sh
Not sure how to start learning a new skill? Whether it’s Frontend, Backend, DevOps, or Blockchain, this site provides step-by-step learning paths for developers.
How does this relate to crypto?
🔥 There’s a dedicated blockchain roadmap, covering Ethereum, Solana, Polkadot, and more.
🔹 3. GitHub Copilot – AI-powered coding assistant
📌 GitHub Copilot
An AI tool by GitHub that helps you write code faster. It works in VS Code and other editors, suggesting code snippets as you type.
Why is it useful for crypto?
🤖 It can auto-generate Solidity smart contracts and optimize Web3 applications.
🔹 4. Chainlist – Simplifying blockchain connections
📌 Chainlist.org
If you’re working with DeFi, dApps, or smart contracts, you need RPC endpoints for different blockchains. Chainlist makes it easy to connect networks in Metamask and other wallets.
🔹 5. Crypto Fees – Track blockchain transaction costs
📌 CryptoFees.info
If you’re building a Web3 project, you need to know which chains have high congestion and expensive fees. Ethereum, BNB Chain, Polygon, Solana—all in one place.
🔹 6. FreeCodeCamp – The best free coding course
📌 FreeCodeCamp
A fantastic website where you can learn to code for free. It includes HTML, CSS, JavaScript, Python, and even some blockchain courses.
🔹 7. Solidity by Example – The best Solidity learning resource
📌 Solidity-by-example.org
If you want to write Ethereum smart contracts, this site is for you. It includes examples, patterns, and best practices for Solidity development.
🔹 8. JSFiddle – Quick JavaScript testing
📌 JSFiddle.net
A simple tool to test JavaScript code in your browser. Perfect for quickly checking Web3.js scripts or testing smart contract interactions.
🔹 9. Etherscan – Blockchain explorer for Ethereum
📌 Etherscan.io
If you’re working with Ethereum, you’ll need Etherscan to track transactions, inspect smart contracts, and check gas fees.
Final Thoughts
These resources will help you become a better developer while also exploring Web3 and blockchain development. Whether you’re into Frontend, Backend, or Solidity, the right tools can make your work easier and faster.
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