Decentralized Applications Courses and Certifications

DEFCONConference

Web2 Meets Web3: Hacking Decentralized Applications

Dive into the security challenges of decentralized applications, exploring real-world vulnerabilities, threat modeling, and attack vectors in both Web2 and blockchain environments.

• YouTube
• 24 minutes
• On-Demand
• Free Video

University at Buffalo;  SUNY

Decentralized Applications (Dapps)

1193 ratings at Coursera

Learn to design and develop decentralized applications using Truffle IDE, smart contracts, and web clients. Explore Dapp architecture, test-driven development, application models, and emerging standards for blockchain-based services.

• Coursera
• 17 hours 53 minutes
• On-Demand
• Paid Course

EDUCBA

Decentralized Application (DApp) Development

24 ratings at Coursera

Learn to build decentralized applications using Hardhat and Ether.js. Master UI design, implement business logic, and create secure, user-friendly DApps with blockchain integration and smart contract development.

• Coursera
• 12 hours 29 minutes
• On-Demand
• Paid Course

DEFCONConference

The Internals of Veilid - A New Decentralized Application Framework

Explore the architecture and capabilities of Veilid, an open-source P2P framework enabling secure messaging and decentralized applications through private routing, strong encryption, and cross-platform compatibility.

• YouTube
• 41 minutes
• On-Demand
• Free Video

Blockchain and Crypto Applications: From Decentralized Finance to Web 3

Explore blockchain evolution from Bitcoin to Web 3, mastering DeFi applications, NFTs, and crypto economics while developing your own project ideas with MIT guidance.

• GetSmarter
• 8 weeks, 7 hours a week
• 24th Jun, 2026
• Paid Course

LF Decentralized Trust

Building a Decentralized Application (dApp) - Step-by-Step Guide

Explore decentralized application development through a hands-on demo, architecture breakdown, and building blocks overview. Gain insights into Hyperledger Fabric and Ethereum Virtual Machine integration.

• YouTube
• 1 hour 34 minutes
• On-Demand
• Free Video

All Things Open

Refactoring the Web - Democratizing Data Ownership and Control

Explore the concept of a decentralized web platform that empowers individuals to own and control their personal data, revolutionizing online identity and data security.

• YouTube
• 16 minutes
• On-Demand
• Free Video

ETHTaipei

Building Encrypted DApps

Discover the fundamentals of building encrypted decentralized applications (DApps) through expert insights on secure blockchain development and implementation strategies.

• YouTube
• 23 minutes
• On-Demand
• Free Video

ETHTaipei

Privacy-First, User-Centric, Defensive Applications in Blockchain Development

Explore the principles of privacy-focused and user-centric decentralized applications, emphasizing defensive development strategies for enhanced security and user protection.

• YouTube
• 26 minutes
• On-Demand
• Free Video

Hedera Hashgraph

Dive into Hedera Hashgraph development with hands-on labs covering network architecture, consensus, tokens, dApps, smart contracts, and interoperability for Web3 building.

• Udacity
• 13 hours
• On-Demand
• Free Online Course

Microcredential

Blockchain Developer

Master blockchain fundamentals and smart contract development with Solidity, from basic concepts to production-ready dApps and collateralized loan contracts.

• Udacity
• 29 hours
• On-Demand
• Paid Course

Building Secure & Decentralized Global Applications on Kubernetes with NATS

Learn to build secure, decentralized apps spanning multiple Kubernetes regions using NATS. Covers global NATS cluster setup across 4 clouds, decentralized authorization, and implementing a Slack-like terminal clone.

• YouTube
• 44 minutes
• On-Demand
• Conference Talk

Blockchain Fundamentals: Understanding the Origins, Mechanisms, and Applications of Decentralized Systems

Explore blockchains origins, working mechanisms and technical features, and learn how you can harness its tools for business success.

• edX
• 4 weeks, 2-4 hours a week
• On-Demand
• Free Online Course (Audit)

Cryptocurrency

Explore cryptocurrency fundamentals, evaluate project viability, and understand blockchain's impact on finance and economics.

• GetSmarter
• 6 weeks, 8 hours a week
• 5th Aug, 2026
• Paid Course

Microcredential

Blockchain

9033 ratings at Coursera

Comprehensive exploration of blockchain technology, covering fundamentals, smart contracts, decentralized applications, and industry frameworks for programmers and enthusiasts seeking practical skills.

• Coursera
• 8 weeks, 10 hours a week
• On-Demand
• Paid Course
• 4 courses