JavaScript Blockchain Development: Build Cryptocurrencies and Smart Contracts — PickAClass
⏱ 2h 36m 📚 26 lessons 🎧 Audio version

JavaScript Blockchain Development: Build Cryptocurrencies and Smart Contracts

Learn the fundamentals of blockchain technology by building your own cryptocurrency and smart contracts from scratch using modern JavaScript.

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About this course

Have you ever wanted to understand how blockchain works behind the scenes without getting lost in complex cryptography? By building your own decentralized ledger from scratch using JavaScript, you will demystify the core concepts of decentralized networks. This text-based course guides you through the process of writing clean, modern JavaScript code to construct a functional blockchain, issue digital tokens, and implement smart contract logic. You will transition from a curious developer to someone who thoroughly understands the architectural foundations of decentralized systems. What you'll learn: - Understand the foundational architecture of blockchain networks, blocks, and distributed ledgers. - Implement a proof-of-work consensus algorithm to secure transactions using JavaScript. - Create a custom cryptocurrency token with transactional capabilities and wallet addresses. - Write smart contract logic to automate agreements directly on your custom blockchain. - Apply modern JavaScript features like async/await and ES6 classes to write clean blockchain code. - Analyze security best practices to protect your decentralized application from common vulnerabilities. The course starts with essential terminology and the basic structure of a block, then progresses step-by-step through network synchronization, mining mechanics, and smart contract execution. Designed for beginner developers and curious programmers with basic JavaScript knowledge who want to understand blockchain mechanics from the ground up, this program requires no prior blockchain or cryptography experience. Start reading today to build your own decentralized systems from the first line of code.

What you'll get

  • 📜 Certificate of completion
    Add it to your LinkedIn profile
  • 💬 Personal AI tutor
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  • 🎧 Audio version included
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  • ♾️ Lifetime access
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  • 📱 Phone or computer
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  • 💸 14-day refund
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  • Short & focused
    2h 36m of practical content

Certificate of completion

Every course you complete on PickAClass issues a credential like this — original, with its own code, verifiable by URL, and detailed about what was actually demonstrated.

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PickAClass
Skills profile · verifiable
Document
Certificate of Mastery
This certifies that
Name Surname
has successfully demonstrated mastery of
JavaScript Blockchain Development: Build Cryptocurrencies and Smart Contracts
Skills demonstrated
Behavioral pattern analysis
Foundational
1.2 hrs
Decision-architecture frameworks
Proficient
1.4 hrs
A/B test design
Proficient
1.7 hrs
Behavioral copywriting
Advanced
1.9 hrs
P
PickAClass — Name Surname
JavaScript Blockchain Development: Build Cryptocurrencies and Smart Contracts
Page 2 of 2
Performance detail
Coursework summary
Lessons completed 14 / 14
Practice questions 26 / 28
Assignments submitted 4 (avg 4.5 / 5)
Capstone project Reviewed — 4.6 / 5
Total practice 6.2 hrs
Performance benchmark
Cohort rank Top 12% of 1,625
Time to completion 11 days (median: 22)
Mastery score 91 / 100
Practice-question score 94%
Skill verification Verified Skill Path
Verify this credential
pickaclass.com/certificates/PCC-2026-X4F7-AP19
Issued under the academic standards of PickAClass. Skill levels reflect assessed performance against the course's competency rubric. This is an original credential of this platform.

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Frequently asked

What do I need to take this course? +

Just a phone or computer with internet. No installs, no special hardware.

How do I pay? +

By card via Stripe. We don’t store card details — Stripe handles them securely.

Can I get a refund? +

Yes — full refund within 14 days, no questions asked.

How long will I have access? +

Forever. Once you purchase, the course is yours to revisit anytime.

Will I get a certificate? +

Yes. On completion you'll receive a certificate you can add to your LinkedIn profile.

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