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Harvard's CS50: introduction to programming

Free certificate

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%.

Go to CS50x

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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).

Go to Kaggle Learn →
Financial aid
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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.

See Google certificates →
100% free
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freeCodeCamp: learn to code for free

Interactive courses in web development, JavaScript, Python and databases, with real projects. Everything is free, including the certifications.

Start on freeCodeCamp →