Free courses

Start with HubSpot's free digital-marketing certification to connect content, search, email, and social activity before choosing a…

Study HubSpot Marketing Hub contacts, campaigns, and workflows. Lessons are free; certification exercises require a Professional or…

Build a search-insights report with Aja Frost's free HubSpot course on topic gaps, competitors, and keyword research, using a practical…

Explore HubSpot's free SEO in the Age of AI learning path for answer-engine visibility, content review, video, and a practical…

Study HubSpot's free AEO Fundamentals certification for search intent, trustworthy content, AI citations, and measurement, with clear limits…

A free browser-based introduction to beats, basslines, chords, melodies, and musical structure through interactive examples.

Microsoft's introductory learning path for the data analyst role and Power BI, connecting data work with reports and business decisions.

Free introductory Word learning resources for building confidence with word processing and everyday document tasks.

Free introductory PowerPoint resources for learning presentation software and practicing straightforward slide-based communication.

Free beginner resources for getting comfortable with Google Sheets and practicing everyday spreadsheet work in a browser.

A free MIT mechanics course with lectures and problem-solving material on motion, forces, momentum, energy, and rotation.

An archived MIT biology course introducing biochemistry, genetics, molecular biology, and cell function through university-level material.

An archived university course on the behavior of solids and structures, connecting loads, deformation, material response, and engineering…

Gilbert Strang's MIT linear algebra course on systems of equations, vector spaces, matrices, eigenvalues, and geometric interpretation.

A free self-paced statistics and probability sequence with explanations and exercises for describing data, chance, and statistical…

Explore the American Red Cross first-aid reference for emergency-response foundations, with a clear distinction between reading and…

Explore OpenLearn’s free Mental Health in Society course for language, social perspectives, and history, with an optional statement of…

Harvard's SQL course combines querying, relational database design, data modification, and performance concepts with problem sets.

Short SQL explanations paired with browser exercises, useful for practicing SELECT statements, joins, aggregates, and data changes.

The official introduction to PostgreSQL, combining a first SQL workflow with relational concepts and features of the database itself.

Official Terraform learning paths for infrastructure configuration, the plan-and-apply workflow, state, modules, and provider-specific…

A free technical course on transformers, tokenizers, datasets, model fine-tuning, and the practical Hugging Face ecosystem.

Official task-based pandas tutorials for reading tables, selecting data, calculating summaries, reshaping information, and combining…

Free web-security explanations and deliberately vulnerable labs for practicing how application flaws are found, understood, and tested.