📋 All free · No sign-up required for most

Free certifications.
Real credentials.

Curated links to certifications that are actually worth your time — from Google, Anthropic, NVIDIA, CS50, and more. Organized by track.

Links go directly to the official provider. Build45 is not affiliated with any of these platforms and does not earn anything from them.
💻
Web & Code
4 certs
🟢
Responsive Web Design
freeCodeCamp
FreeCertificate
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🟡
JavaScript Algorithms & Data Structures
freeCodeCamp
FreeCertificate
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🎓
CS50x — Introduction to Computer Science
Harvard · edX
Free to auditCertificate
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🔵
Meta Front-End Developer
Meta · Coursera (audit free)
Audit freeProfessional Cert
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🤖
AI & Machine Learning
4 certs
🧠
Claude AI Fundamentals
Anthropic Academy
FreeCertificate
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⚡
Getting Started with AI on Jetson
NVIDIA Deep Learning Institute
FreeCertificate
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📊
Intro to Machine Learning
Kaggle Learn
FreeCertificate
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🔍
Intro to AI Ethics
Kaggle Learn
FreeCertificate
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☁️
Cloud & DevOps
3 certs
🌐
Cloud Skills Boost — Learning Paths
Google Cloud
Free tiersBadges + Certs
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🟠
AWS Cloud Practitioner Essentials
Amazon Web Services (AWS Skill Builder)
FreePrep course
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🔷
Azure Fundamentals Learning Path
Microsoft Learn
FreeAZ-900 prep
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📈
Data & Analytics
3 certs
📉
Google Data Analytics
Google · Coursera (audit free)
Audit freeProfessional Cert
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🧹
Data Cleaning
Kaggle Learn
FreeCertificate
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🗄️
Intro to SQL
Kaggle Learn
FreeCertificate
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📣
Marketing & Growth
3 certs
🎯
Google Digital Marketing & E-commerce
Google Skillshop
FreeGoogle Certification
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📘
Meta Blueprint — Free Courses
Meta Blueprint
FreeBadge available
Start learning ↗
🟠
HubSpot Academy
HubSpot (Marketing, Sales, CRM)
FreeCertificate
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