>_const certified = await javascript.guild();
Master JavaScript.
Earn the proof.
The definitive JavaScript certification. 22 hands-on lessons and 16 real coding challenges that run in your browser — with an AI instructor on call and a verifiable certificate waiting at the end.
- 22 lessons
- 16 challenges
- Zero setup — code runs in your browser
- Lifetime access
- Verifiable certificate
- AI instructor included
// How it works
Everything you need. Nothing you don't.
01 / 04
Real JavaScript, in your browser
Every challenge runs in a sandboxed JavaScript runtime right in your browser. Write code in a professional editor, see live output, and get instant pass/fail feedback — zero setup, nothing to install.

02 / 04
AI Instructor
Stuck on closures or async/await? Your AI instructor knows exactly which lesson you are on and explains concepts, debugs code, and nudges you forward without spoiling answers.

03 / 04
Built-in notes
Capture your own explanations and gotchas right next to each lesson. Your notes save automatically per lesson and are always one tab away.

04 / 04
Verifiable certificate
Finish every lesson and pass every challenge to earn the JavaScript Guild certificate — with a public verification link you can put on LinkedIn and your resume.

// Curriculum
Variables to advanced patterns
6 modules, 22 lessons, and 16 hands-on challenges. Each module builds on the last — finish them all to unlock your certification.
// Certification
Proof that stands up to scrutiny
Complete every lesson and pass every challenge to earn the JavaScript Guild certificate. Each certificate has a unique public verification URL — recruiters and hiring managers can confirm it in one click.
- Unique verification ID and public link
- A shareable achievement badge for your profile
- One-click LinkedIn sharing
Certificate of Completion
Your Name Here
has successfully completed the JavaScript Guild Certification Course and demonstrated proficiency in JavaScript.
jsguild.com/cert/xxxxxxxx
// Pricing
One course. One price.
We sell exactly one thing: the definitive JavaScript certification. No tiers, no upsells.
- 22 in-depth lessons across 6 modules
- 16 interactive coding challenges
- AI instructor with full lesson context
- Per-lesson note taking
- Verifiable, shareable certificate
- Lifetime access — one payment, no subscription
// FAQ