Solidity Blog
Tutorials, guides, and insights on Solidity, smart contract security, and blockchain development.
Solidity en 2026 : Les Nouveautes a Connaitre
Decouvrez les evolutions majeures de Solidity en 2026 : nouvelles fonctionnalites du compilateur, optimisations gas, et meilleures pratiques a adopter.
Foundry vs Hardhat 2026 — Which Framework Should You Choose?
Comparaison complete des deux frameworks de developpement Solidity les plus populaires. Performance, DX, ecosysteme : tous les criteres analyses.
Les 10 Vulnerabilites Solidity les Plus Courantes
Analyse des vulnerabilites les plus frequentes en Solidity avec exemples de code vulnerable et versions securisees. Reentrancy, overflow, access control et plus.
How to Become a Smart Contract Auditor in 2026
Roadmap complete pour devenir auditeur de smart contracts : competences requises, outils a maitriser, plateformes d'audit et salaires 2026.
ERC-4337 Account Abstraction : Guide Complet
Comprendre l'Account Abstraction et ERC-4337 : comment les smart contract wallets revolutionnent l'UX Ethereum. Exemples, implementation, cas d'usage.
Solidity vs Vyper : Comparaison Complete
Comparaison approfondie de Solidity et Vyper : syntaxe, securite, performance, ecosysteme. Quel langage choisir pour vos smart contracts en 2026 ?
Top 10 Solidity Vulnerabilities Every Developer Must Know
From reentrancy to front-running, these are the vulnerabilities that have cost billions. Learn to identify and prevent them.
Solidity Developer Salary 2026 — Complete Guide
What do Solidity developers earn in 2026? From junior to senior, remote vs on-site, by region.
ERC-20 Token Tutorial — Create Your First Token in Solidity
Step-by-step guide to creating, testing, and deploying your first ERC-20 token. From scratch to mainnet.
What is the EVM? Ethereum Virtual Machine Explained
Understand how the EVM executes smart contracts. Stack machine, opcodes, gas, storage — everything you need to know.
8 Solidity Design Patterns Every Developer Should Know
From Checks-Effects-Interactions to Factory and Proxy patterns. Write cleaner, safer, more maintainable smart contracts.
How to Deploy a Smart Contract on Ethereum — Step by Step
From writing your contract to deploying on mainnet. Using Foundry, Hardhat, or Remix — all methods covered.
NFT Smart Contract Tutorial — Build an ERC-721 Collection
Create a full NFT collection with minting, metadata, royalties, and reveal mechanism. Complete ERC-721 guide.
Web3 Developer Roadmap 2026 — From Zero to Blockchain Developer
The complete learning path to become a Web3 developer in 2026. Skills, tools, timeline, and resources.
Smart Contract Testing with Foundry — Complete Guide
Master Foundry testing: unit tests, fuzz testing, invariant testing, fork testing. Write bulletproof smart contracts.
Understanding Gas in Ethereum — How It Actually Works
Gas price, gas limit, base fee, priority fee, EIP-1559 — demystify Ethereum gas once and for all.
DeFi Development Guide — Build Your First Protocol
Understand AMMs, lending pools, and yield farming. Build a simple DeFi protocol from scratch.
Solidity vs Rust for Blockchain Development — 2026 Comparison
Ethereum vs Solana, EVM vs SVM. Which language should you learn for blockchain development?
Solidity Security Best Practices — Ship Safe Smart Contracts
The essential security checklist for every Solidity developer. From access control to reentrancy guards.
Ethereum Layer 2 Scaling — Rollups, ZK, and Optimistic Explained
Understand L2 scaling solutions: Optimistic rollups, ZK rollups, validiums. Where to deploy your contracts.
Reentrancy Attack Explained — How It Works and How to Prevent It
Understand the reentrancy vulnerability that led to The DAO hack and learn proven techniques to protect your smart contracts from this critical attack vector.
tx.origin vs msg.sender — Why It Matters for Security
Learn the critical difference between tx.origin and msg.sender, why using tx.origin for authentication is dangerous, and when to use each global variable.
Flash Loan Attacks Explained — How Millions Get Stolen
Explore how flash loan attacks exploit DeFi protocols through oracle manipulation and governance attacks. Learn prevention strategies with TWAP oracles and Chainlink.
Smart Contract Audit Checklist — 20 Things to Check Before Deployment
Comprehensive pre-deployment checklist covering access control, reentrancy, overflow protection, input validation, gas optimization, events, and upgradability.
Delegatecall Vulnerabilities — Storage Collisions and Proxy Pitfalls
Understand how delegatecall works, why storage layout collisions occur in proxy patterns, and learn to implement safe upgradeable contracts using EIP-1967.
Remix IDE Complete Guide — Write, Test and Deploy in Your Browser
Remix IDE is the most popular browser-based development environment for smart contracts. Learn how to write, compile, test, debug and deploy Solidity contracts without installing anything.
Slither — Static Analysis for Smart Contract Security
Slither is the industry-standard static analysis tool for Solidity. Learn how to install, run, and interpret Slither results to catch vulnerabilities before deployment.
OpenZeppelin Contracts — The Standard Library for Solidity
OpenZeppelin Contracts is the most trusted library for secure smart contract development. Learn how to use ERC20, ERC721, Access Control, and other battle-tested components.
MetaMask for Developers — Connect Your dApp to Web3
MetaMask is the most popular Web3 wallet with 30+ million users. Learn how to detect, connect, and interact with MetaMask to build seamless dApp experiences.
Ethers.js vs Web3.js — Which Library Should You Use?
Ethers.js and Web3.js are the two most popular JavaScript libraries for Ethereum. Compare their features, API design, bundle size, and performance to choose the right one for your project.
Tenderly — Debug and Monitor Smart Contracts Like a Pro
Tenderly is a powerful platform for debugging, monitoring, and simulating smart contracts. Learn how to use transaction debugging, gas profiling, alerts, and fork testing to build bulletproof dApps.
Ethereum Pectra Upgrade — What Developers Need to Know
The Pectra upgrade brings major changes to Ethereum in 2026. Account abstraction improvements, blob gas adjustments, and new EIPs that will shape smart contract development for years to come.
Solidity 0.8.28 Release — New Features and Breaking Changes
Solidity 0.8.28 is here with transient storage, improved error messages, and several breaking changes. Here's what every developer needs to know before upgrading.
DeFi TVL in 2026 — Trends and Opportunities for Developers
DeFi TVL reached $150B in 2026. Dive into the protocols dominating the space, emerging trends, and where developers should focus their skills to capture opportunities.
Biggest Smart Contract Hacks of 2025-2026 — Lessons Learned
Over $800M stolen in DeFi hacks in 2025-2026. Analyze the biggest exploits, understand what went wrong, and learn how to protect your contracts from similar attacks.
Account Abstraction Adoption in 2026 — The State of ERC-4337
Account abstraction is finally gaining traction. ERC-4337 powers millions of wallets, major exchanges are integrating, and EIP-7702 is changing the game. Here's where we stand.
Ethereum Blob Space — How It Changed L2 Economics
EIP-4844 introduced blob transactions in March 2024. Two years later, L2 costs are down 95%, and the blob gas market is reshaping Ethereum's economic model. Here's the impact.
Solidity Job Market 2026 — Where the Demand Is
Solidity job postings are up 140% year-over-year. Dive into salary data, most in-demand skills, top hiring companies, and whether you should go remote or relocate.
ERC-20 vs ERC-721 vs ERC-1155 — Which Token Standard to Use
Compare les trois standards de tokens Ethereum les plus populaires : ERC-20 (fungible), ERC-721 (NFT) et ERC-1155 (multi-token). Comprendre leurs differences, cas d'usage et couts en gas.
Arbitrum vs Optimism vs zkSync — L2 Comparison for Developers
Comparaison complete des trois principales solutions Layer 2 Ethereum : Arbitrum, Optimism et zkSync. Architecture, couts, vitesse, ecosysteme et experience developpeur.
Hardhat vs Foundry vs Remix — Development Environment Comparison
Comparaison complete des trois environnements de developpement Solidity : Hardhat (TypeScript), Foundry (Rust) et Remix (web). Avantages, inconvenients et recommandations par use case.
Chainlink vs Pyth vs Uniswap TWAP — Oracle Comparison
Comparaison des trois principales solutions d'oracles pour smart contracts : Chainlink (decentralise), Pyth (low-latency), Uniswap TWAP (on-chain). Securite, latence, couts et use cases.
Transparent vs UUPS vs Beacon Proxy — Which Pattern to Use
Comparaison detaillee des trois patterns de proxy pour smart contracts upgradeables : Transparent Proxy, UUPS et Beacon Proxy. Mecanismes, couts gas, securite et recommendations.
Solana vs Ethereum Development — 2026 Comparison
Comparaison complete du developpement sur Solana (Rust) vs Ethereum (Solidity). Modele de programmation, langages, couts, ecosysteme, jobs et quel blockchain apprendre en premier.
How to Build a Blockchain Developer Portfolio That Gets You Hired
Learn what to include in your blockchain developer portfolio, which projects recruiters look for, and how to stand out in the competitive Web3 job market.
Top 30 Web3 Interview Questions for Solidity Developers
Prepare for your next Web3 interview with these 30 essential questions covering Solidity basics, security, gas optimization, EVM internals, and DeFi protocols.
Freelance Solidity Developer — How to Earn $200+/hour
Learn how to start freelancing as a Solidity developer, where to find high-paying clients, how to set your rates, and build a sustainable Web3 freelance career.
From Web2 to Web3 — A Developer's Transition Guide
Making the jump from Web2 to Web3 development? Learn which skills transfer, what's fundamentally different, the fastest learning path, and common mistakes to avoid.
Solidity Certifications in 2026 — Are They Worth It?
Should you get a Solidity certification? We review available certifications, what employers actually look for, and better alternatives to prove your blockchain development skills.
Understanding Solidity Mappings — From Basics to Advanced Patterns
Master Solidity mappings with this comprehensive guide covering basic usage, nested structures, iterable patterns, and gas optimization techniques.
Solidity 0.8.29 — User-Defined Operators and What They Mean for DeFi
Explore the groundbreaking user-defined operators feature in Solidity 0.8.29 and how it will transform DeFi protocol development.
Integer Overflow Before and After Solidity 0.8 — What Changed
A deep dive into integer overflow vulnerabilities in Solidity, the SafeMath era, and how Solidity 0.8 changed everything with built-in overflow checks.
Aderyn — The New Rust-Based Static Analyzer for Solidity
Discover Aderyn, the blazing-fast Rust-based static analyzer for Solidity. Learn how it compares to Slither, how to install it, and how to integrate it into your CI pipeline.
Foundry Forge vs Hardhat Testing — A Practical Side-by-Side
An in-depth comparison of Foundry Forge and Hardhat testing frameworks, including syntax, speed, fuzzing, debugging, and when to use each.
Building Your First Smart Contract Audit Report — A Step-by-Step Guide
Learn how to structure and write professional smart contract audit reports, including severity classification, finding templates, and real examples.
How to Write Gas-Efficient Loops in Solidity
Learn practical techniques to optimize loops and reduce gas costs in your smart contracts.
Front-Running and MEV — How Bots Exploit Your Transactions
Understand how MEV bots monitor mempools and sandwich your trades for profit.
EIP-7702 — The End of EOA vs Contract Account Distinction
How EIP-7702 lets EOAs temporarily behave like smart contract wallets without migration.
Echidna — Property-Based Fuzzing for Smart Contracts
Use Echidna to automatically find edge cases and invariant violations in your Solidity code.
OpenZeppelin vs Solady — Which Library for Gas Optimization?
Compare OpenZeppelin and Solady contracts to see which saves more gas and when to use each.
Day in the Life of a Smart Contract Auditor
Follow a typical day for a professional smart contract auditor, from threat modeling to report writing.
Proxy Patterns Explained — Transparent, UUPS, and Beacon
Understand the three major proxy patterns for upgradeable smart contracts and when to use each.
Access Control Pitfalls — Beyond onlyOwner
onlyOwner is just the beginning. Learn about role-based access, multi-sig patterns, and common mistakes.
Sourcify — Verified Source Code for Every Contract
Sourcify provides decentralized source code verification on IPFS. Learn how to verify your contracts.
Chainlink CCIP vs LayerZero — Cross-Chain Messaging Compared
Two dominant cross-chain protocols compared: security models, pricing, chains, and when to use each.
Building a Minimal ERC-4626 Vault from Scratch
Step-by-step guide to building a tokenized vault following ERC-4626 — the DeFi building block.
How to Price Your Smart Contract Audit — A Freelancer's Guide
Pricing audits is tricky. Learn frameworks for quoting, factors affecting price, and how top auditors charge.
Macron at Paris Blockchain Week 2026 — What a G7 President's Speech Means for Crypto
First sitting G7 head of state to address an institutional digital assets conference. Stablecoins, digital euro, European sovereignty — here's what changed.
Drift Protocol $285M Hack — How Months of Prep Executed in 12 Minutes
The biggest DeFi exploit of 2026. Social engineering, fake tokens, oracle manipulation, and a compromised admin key. Full technical breakdown.
12 Protocols Hacked in 16 Days — DeFi's Post-Drift Contagion
CoW Swap, Silo Finance, Aethir, Zerion, Bybit. The Drift exploit triggered a copycat wave. What's connecting them all.
EIP-4844 Blob Transactions — How They Actually Work
Blobs changed L2 economics. Here's what they are, how they work, and what they cost.
Post-Mortem — The Biggest DeFi Hacks of Q1 2026
$X million lost in Q1 2026. Recurring patterns, new attack vectors, and what we should learn.