Free Courses
Structured, self-paced programs built from verified training videos and official government sources. No account required — your progress saves automatically in your browser.
HVAC University A-Z
Zero knowledge to apprenticeship-ready. 48 embedded training videos (every one verified and published within the last five years), plain-English lessons, vocabulary, safe practice tasks, quizzes with answer keys, downloadable unit notes, and a final capstone. Built on EPA, OSHA, and NIOSH sources.
Honest limit: this course teaches fundamentals and safety. It does not make you licensed, EPA-certified, or qualified to do paid HVAC work alone.
Start HVAC University A-Z →Building Automation University A-Z
Zero knowledge to job-ready. 97 embedded training videos (all verified via YouTube API), covering electrical fundamentals, HVAC systems, DDC hardware, BACnet/Modbus/LonWorks protocols, Tridium Niagara N4, PID control theory, energy management, BAS cybersecurity, and project documentation. Built on OSHA, ASHRAE, NIST, and DOE sources.
Honest limit: this course teaches fundamentals and theory. Hands-on lab time with real DDC hardware and Niagara Workbench is required to apply what you learn. Seek an internship or employer lab.
Start Building Automation University A-Z →Plumbing University A-Z
Zero knowledge to apprenticeship-ready. 25 embedded training videos (every one verified live, with honest flags wherever a publish date couldn't be confirmed), plain-English lessons on supply, DWV, pipe materials, fixtures, and water heaters, safe practice tasks, quizzes with answer keys, downloadable unit notes, and a final capstone. Built on OSHA, CDC, DOE, and BLS sources.
Honest limit: this course teaches fundamentals and safety. It does not make you licensed or qualified to do paid plumbing work alone.
Start Plumbing University A-Z →Automotive University A-Z
Zero knowledge to apprenticeship-ready. Embedded training videos verified live (YouTube oEmbed, 15-year window), plain-English lessons on electrical systems, engine performance, brakes, suspension, transmissions, OBD-II diagnostics, and ASE certification. Built on OSHA, NHTSA, EPA, and BLS sources. Curriculum modeled on Durham Tech's Automotive Systems Technology AAS.
Honest limit: this course teaches fundamentals and safety. It does not make you ASE-certified, licensed, or qualified to do paid automotive work alone.
Start Automotive University A-Z →Plumbing Tool & Equipment Flashcards
34 foundational tools and equipment — tap to flip and reveal the key fact. Pipe materials, hand tools, valves, fixtures, and recognize-only equipment. Study before your first day or alongside the course.
Free PDF download (tradetoolz.com watermark on every card). No account required. No course completion gate.
Study the Flashcards →