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Free Online Courses to Learn New Skills in 2025

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Learning new skills has never been more accessible than it is today.

With the large number of online teaching platforms, anyone can specialize in different areas without leaving home and without spending money.

If you want to improve your knowledge in 2025, check out the 10 best free online courses to boost your career and expand your skills.

1. CS50 – Introdução à Ciência da Computação (Harvard – edX)

Harvard University's CS50 course, offered for free on the edX platform, is one of the most popular courses for those who want to learn programming and computer science from scratch.

It covers everything from algorithms and data structures to web development and artificial intelligence.

What will you learn?

This course is ideal for both beginners and those who already have some experience in the field and wish to deepen their knowledge.

2. Google Digital Garage – Fundamentals of Digital Marketing

If you want to learn about digital marketing, this Google Digital Garage course is essential.

It teaches concepts such as SEO, online advertising, data analysis and much more, making it ideal for entrepreneurs and professionals who want to expand their digital presence.

What will you learn?

Additionally, upon completing the course, you can obtain a free Google certification, which can be a differentiator in the job market.

3. Python for Data Science and Machine Learning (Udemy)

Udemy offers several free courses, and this one on Python for data science is an excellent option for those who want to delve deeper into one of the most promising areas of the moment.

The course teaches everything from basic language concepts to advanced machine learning techniques.

What will you learn?

4. Online English Course (BBC Learning English)

If your goal is to improve your English, BBC Learning English provides free materials and video lessons for all levels.

The course focuses on listening comprehension, vocabulary and grammar, making it a great option for those who want to learn in a practical and interactive way.

What will you learn?

5. Fundamentos de Negócios (Harvard Business School – Online)

Harvard Business School offers free courses on the fundamentals of business, finance, and leadership.

This course is ideal for entrepreneurs and professionals who want to develop management and strategic skills.

What will you learn?

6. Web Development with HTML, CSS and JavaScript (freeCodeCamp)

freeCodeCamp is one of the best platforms to learn web development for free.

The HTML, CSS, and JavaScript course teaches everything from the basics to advanced concepts, helping anyone build modern websites and apps.

What will you learn?

7. Curso de Inteligência Artificial e Machine Learning (Stanford – Coursera)

Offered by Professor Andrew Ng on the Coursera platform, this course is one of the most recommended for those who want to enter the field of artificial intelligence.

It covers everything from machine learning algorithms to neural networks and deep learning.

What will you learn?

8. Educação Financeira (Fundação Getulio Vargas – FGV Online)

FGV offers an excellent free financial education course, covering topics such as financial planning, investments and expense control.

Perfect for those who want to improve their relationship with money and make more informed financial decisions.

What will you learn?

9. Graphic Design for Beginners (Canva Design School)

If you want to learn graphic design, Canva Design School offers a free course focused on creating layouts, visual identity and using design tools.

Ideal for those who want to create high-quality visual materials without needing to be an expert.

What will you learn?

10. Introduction to Java Programming (MIT OpenCourseWare)

The Massachusetts Institute of Technology (MIT) offers a free introductory course on Java programming.

Ideal for those who want to learn how to develop robust applications and systems using this programming language widely used in the market.

What will you learn?

Conclusion

With so many free, high-quality course options available, 2025 is the perfect year to invest in your learning and expand your skills.

Choose a course that aligns with your interests and goals and start learning today!

Take advantage of these opportunities and be sure to explore other courses available on the platforms mentioned.

Knowledge is at your fingertips, and the future of online learning continues to evolve!