Learn Web3 & Crypto
Free, no-signup courses and guided paths that take you from zero to decoding real on-chain data — the same methodology the W3D Terminal uses to grade blockchains.
Pick a path
Beginner Path
Understand money, Bitcoin, blockchains, smart contracts and DeFi — in plain English, no math.
Start hereAnalyst Path
Learn the W3D four-pillar methodology, the Nakamoto Coefficient and how to read stress tests like a pro.
Go analystFree courses
Certified Decentralization Analyst
Start the courseWallets & Security 101
Hold your own keys without becoming your own worst enemy. From your first wallet setup to multisig, scam defense, and…
Start the courseDeFi 101
Understand decentralized finance the safe way: DEX trading, lending, stablecoins, yield, contracts, bridges — with a…
Start the courseBlockchain Basics
How blockchains actually work, from first principles: why they were invented, how blocks link, who runs the network,…
Start the courseSmart Contracts for Beginners
Programs that run themselves: how contracts execute, reading real Solidity, tokens as contracts, DeFi composability,…
Start the courseL2 Developer Path
From L2 fundamentals to shipping on testnets: OP Stack mechanics, bridging, comparing Optimism/Arbitrum/Base, blob…
Start the courseSecurity & Self-Custody Advanced
Think in threat models, not tips: famous hacks dissected, a 15-minute audit checklist, SIM-swap and address-poisoning…
Start the courseAll lessons, by course
Crypto Fundamentals from Zero
- What is Money, Really?
- Bitcoin: Digital Gold Without a Middleman
- How a Blockchain Records Truth
- Ethereum and Smart Contracts
- DeFi in Plain English
- Crypto Safety 101: Keys, Scams & Custody
- What Decentralization Actually Means
- LAB 1 — Your First Network Scan
- What Is a Blockchain?
- What Is Cryptocurrency?
- Wallets, Keys & Seed Phrases
- Buying Your First Crypto
- Sending Crypto Safely
- Staying Safe: Scams & Self-Custody
- Proof of Work vs Proof of Stake
- Staking & Earning on Your Crypto
- What Is DeFi? A DEX Walkthrough
- Where to Go Next: Your Learning Map
Certified Decentralization Analyst
- The Four Pillars of the W3D Methodology
- Nakamoto Coefficient Explained
- Censorship Resistance in Practice
- Lab: Terminal Walkthrough
- LAB — Stress Tests and Grade Compression
- LAB — Comparing Chains Side by Side
- Final Exam Preparation
- Decentralization Is Not a Buzzword
- Reading the Nakamoto Coefficient
- Pillar 1: Infrastructure
- Pillar 2: Capital
- Pillar 3: Governance
- Pillar 4: Software
- Lab: Score a Chain in the Terminal
- Method: Weights, Limits & Best Practices
Hands-on tools
W3D Terminal
Live decentralization audits for 8 blockchains, stress tests, and side-by-side comparisons.
Open the terminalGlossary
Every term explained — blocks, nodes, forks, stablecoins, rollups and more.
Browse the glossary