HubSpot Academy: marketing and sales courses
FreeOnline courses on content marketing, social media, email marketing and sales.
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Harvard's CS50: introduction to programming
Harvard's introduction to computer science, 2026 edition: C, Python, SQL and web development. It's free and gives a free certificate if you submit all problem sets and the final project with at least 70%.
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Kaggle Learn: Python, data and AI in a few hours
Hands-on micro-courses on Python, Pandas, SQL, visualization and machine learning, done in your browser. They're free, and you get a certificate of completion for each course (you need a Kaggle account).
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Google Professional Certificates on Coursera
Data analytics, IT support, UX, digital marketing and more, created by Google. You can view the content for free and apply for Coursera's Financial Aid to get the certificate without paying: it's requested course by course and the answer takes up to 15 days.
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