freeCodeCamp
Responsive Web Design Certification
freeCodeCamp's rebuilt HTML and CSS certification with lessons, workshops, labs and a free exam.
Free certificateWeb Development
300 hrsBeginner
173 free courses
All free online courses
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Google
Learn HTML
web.dev's free HTML course on semantics, forms, metadata and accessible markup.
Free certificateWeb Development12 hrsBeginnerThe Odin Project
Foundations Course
The Odin Project's free starting course: Git, HTML, CSS, Flexbox and JavaScript basics.
No certificateWeb Development100 hrsBeginnerMDN Web Docs (Mozilla)
Learn Web Development (MDN Curriculum)
Mozilla's free, standards-based web curriculum from first HTML page to frameworks and accessibility.
No certificateWeb Development150 hrsBeginnerMicrosoft (open-source curricula)
Web Development for Beginners
Microsoft's free 12-week, 24-lesson project curriculum on HTML, CSS and JavaScript.
No certificateWeb Development48 hrsBeginner