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The 5 best portals for online and free courses

Os 5 melhores portais de cursos onlines e gratuitos

The 5 best portals for online and free courses

Today we are going to present the 4 best free online course portals that will add a lot to your CV and, of course, learn more about your profession or even discover a new one.


Online course portals are the best option when it comes to expanding knowledge in an accessible and flexible way, as they are courses taken at home, whenever you want, without the need for extra expenses.

These courses do not require a monetary investment, as they are completely free and easily accessible. In this article, we will present some of the best free course portals available, providing you with a wide range of options to learn more and better about your areas of interest.


See now the 5 best free online course portals


Coursera is a renowned online course portal that has revolutionized the way people access and acquire knowledge. Although most courses are paid, the portal offers a selection of free courses, called “Audit Courses”. These courses allow you to access the full content, but you do not receive a certificate of completion.

Subjects covered by the course

The portal is recognized as a global learning platform, connecting students and instructors from around the world. It offers a wide range of courses across different disciplines, including science, business, arts, technology, data science, languages, and more. 

Portal tools

There you will find a variety of learning modalities to suit your preferences and needs. In addition to traditional video classes, courses often include practical exercises, additional readings, discussion forums and assessment tasks. 

Coursera also provides a collaborative and enriching learning experience. Students have the opportunity to interact with instructors and classmates from around the world, participating in discussion forums, sharing ideas, clarifying doubts and expanding their professional network. 

More about

One of the great advantages of Coursera is its flexibility and accessibility. Courses are available for free access, allowing students to learn at no cost. However, for those who wish to receive a certificate of completion, Coursera offers the option to purchase a verified certificate, which proves completion and enjoyment of the course. 

2. edX

Another renowned platform in the field of online education is edX. This collaborative platform was founded by renowned universities such as Harvard and MIT and offers a wide range of free courses. The courses are developed by academic experts and professionals from different areas, ranging from exact sciences to humanities. Additionally, edX also offers the option to obtain a verified certificate for a fee.

Access to courses in various disciplines

Whether you're interested in hard sciences, humanities, social sciences, technology, or business, you're sure to find relevant options in your area of interest on edX. The courses are organized into modules, allowing you to learn sequentially, gradually deepening your knowledge in the chosen subject.

Interactive learning modalities

In addition to video classes, many courses offer quizzes, practical exercises, discussion forums and collaborative projects. These learning modalities help to consolidate the concepts learned, promote interaction with other students and offer the opportunity to apply knowledge in real situations.

Flexibility and autonomy in learning

edX values student flexibility and autonomy in their learning process. Courses are taught online, allowing students to study at their own pace and according to their time availability. Additionally, it offers the option to audit courses for free, allowing students to access content without having to pay for a certificate of completion.

Access to verified certificates

The courses are available free of charge, but to obtain a certificate it is necessary to prove the skills acquired by paying a certain amount to have the certificate available. 

3. Khan Academy

Khan Academy is an online educational platform whose mission is to provide free, quality education for everyone, anywhere in the world. Founded in 2008 by Salman Khan, Khan Academy has become a reference in the field of education, helping millions of people acquire knowledge and develop skills in an accessible and personalized way.

Various subjects and teaching levels

The portal covers a wide range of academic disciplines, from mathematics and science to humanities and arts. It also offers content for different levels of education, from elementary school to higher education. 

Video lessons and interactive exercises

Instructional videos are developed by experts in each area of knowledge and present concepts in a clear and accessible way. These classes are complemented by interactive exercises, which allow students to practice and consolidate their learning. 

Resources for educators and parents

Teachers can use the platform to create classes, assign specific exercises and track student progress. Parents can monitor their children's performance, identify areas in which they need more support and help them with their academic development.

Free access and global availability

One of the main advantages is its completely free access. This means that anyone with internet access can take advantage of the high-quality educational resources offered by the platform, regardless of their geographic location or financial condition. 

4. Udemy

Udemy is a leading platform in the online teaching market, offering a wide variety of courses taught by experts in different areas of knowledge. Founded in 2010, Udemy stands out for its flexible approach, allowing students to learn at their own pace and according to their specific needs.

A comprehensive course catalog

Udemy offers a vast catalog of courses in different areas, from software development, digital marketing, graphic design, languages, to personal and professional skills. Additionally, the platform allows qualified instructors to create and deliver their own courses, ensuring an even greater variety of options for students.

Expert instructors and practical content

The courses are taught by specialized and experienced instructors in their respective fields. This ensures that the content is up-to-date, relevant and of high quality. In addition to video classes, many courses offer additional resources, such as practical exercises, real projects, quizzes and complementary materials. 

Flexible and autonomous learning

One of the great advantages of Udemy is the flexibility it offers students. You can learn at your own pace, choosing when and where to study. Courses are recorded on video and are available to access at any time, allowing you to adjust your learning according to your routine and availability. 

Global access and affordable prices

Udemy offers global access to its course catalog, allowing people around the world to benefit from online learning. Additionally, the platform generally offers free courses, but with the option to purchase a certificate of completion.

5. Google Atelier Digital

Google Ateliê Digital is an educational platform developed by Google, with the aim of training people in digital skills and helping entrepreneurs expand their businesses in the online world. With a wide variety of free courses, Google Ateliê Digital offers valuable resources for those who want to stand out in the constantly evolving digital environment.

Diversity of themes

Covers a wide range of topics related to the digital world. Available courses include digital marketing, SEO (search engine optimization), social media, analytics, online advertising, e-commerce, among others. 

Partnership with renowned experts and organizations

The portal has a partnership with experts and renowned organizations in each area of knowledge covered in the courses. This ensures that content is up-to-date, authoritative and relevant to current market trends and practices.

Free access and global availability

One of the great advantages is that all the courses available on the platform are free. This means that anyone with internet access can take advantage of the high-quality educational resources offered by Google. 

Support and certificates of completion

Google Ateliê Digital supports students throughout the learning process, providing guidance and answers to frequently asked questions. Additionally, upon successfully completing a course, students have the option of earning a certificate of completion. These certificates can be shared on resumes and professional profiles, demonstrating mastery of specific digital skills and enriching the professional profile.

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