There are many online course websites which provide courses for free. The first one is called Coursera. If you want to look for coursera database, you can visit https://www.coursera.org/. This site offers anyone the ability to take free online courses which can include having a certificate upon completion. It is perfect for online learners who love connecting with people from around the world.
I have included other online learning platforms that could be beneficial to you.
Coursera

Course Topics | Business, Science, Programming, Social Sciences, Languages, Arts & Humanities
Pricing | Individual course (starting at $29/per course); Specialized program (starting at $39/month); degrees (starting at $15K/per)
Certifications Available | Project Management, Entrepreneurship, IT
Our Pick | Modern Art And Ideas
Started in 2012 by two Stanford professors, Coursera believes that everyone should be able to learn anywhere, anytime, and from the world’s top education providers. Since then, it’s reached over 60 million learners and partnered with more than 200 universities to bring all kinds of content to users. Whether you’re looking for a general course, a specific specialization, or a university-recognized degree, Coursera will be your one-stop-shop. Courses range from $29 to $99; specializations in topics like data science or econometrics go up to $39 to $99/month; degrees run up to $25,000 that can be taught over one to three years.
Review | “[Coursera] is a brilliant tool for lifelong learners. The best part about Coursera is the diverse range of subjects and topics available for us to learn and grow. It offers someone like me who has a passion for lifelong learning, an opportunity to keep learning within the confines and comforts of my house. I can get access to some of the best faculties in the world and institutions in the world without moving an inch.” – Nelson T.
General Assembly

Course Topics | Development, Marketing, Design, Science
Pricing | Free (some intro classes)–$15,000 (full-time immersive)
Certifications Available | Letters of Completion only
Our Pick | Digital Marketing
Ready to invest in yourself or your team? General Assembly (GA) is the way to go for learning the latest technology skills. With full-time and part-time programs, GA teaches employees at some of the biggest names in the tech industry, including Salesforce, Ernst & Young, and PayPal. With courses on everything from coding to HTML/CSS to iOS and Android development, you’ll build skills useful for decades to come. What’s most impressive about GA is that the instructors come from the likes of Google, Facebook, and other leading employers who hire the best and brightest talent. It offers in-person classes out of major cities as well, so you can learn IRL. While the prices are slightly higher than most online educational programs, GA offers installment plans, low-cost loans, and scholarships to subsidize the cost. This allows students to stop worrying about tuition and focus more on the learning experience.
Review | “I honestly did learn a lot at GA, and I felt like without it, I would not have made as much progress as quickly as on my own. My instructors were great, and everything went relatively smoothly.” – James
Academic Earth
Academic Earth is a collection of free online college courses from some of the world’s leading universities and colleges. On its site you’ll be able to find specific courses in many subjects as well as search by university. It collects playlists and video groups to help you learn from many different services, too.
Academic Earth is a smart search tool and a good place to start your journey. It collects many free courses from around the world, so you may click on a lesson plan and be taken to another partner on our list, such as MIT OpenCourseWare.
Alison Learning Paths
Alison offers free online courses created by experts in various fields. You’ll find a mix of educators and entrepreneurs creating this content. Some are sponsored by different companies to help with very specific projects such as applying for different types of certifications and exams. Classes fall under a few major categories such as marketing, health, humanities, science, and technology. Some of the more advanced classes do have a cost, but the service offers many free online learning paths designed to give you the groundwork to earning a diploma elsewhere.
Better Explained
For people who want to learn math and how it is applied in the real world, Better Explained offers interesting classes, articles, and lessons. Individual lessons are generally free and so are online course texts. You can purchase “complete” courses that come with PDF versions of textbooks, video lessons, more quizzes, and invitations to webinars when they occur.
Courses cover a wide range of study areas and complexities, plus some specific places where math rules guide computer programming and web development.
Bloc
Focused on web development, Bloc is a more intensive option for those who want to learn quickly. Instead of short courses or lectures, this highly structured program runs for 25 hours per week over several months. With tuition starting at $8,500, bloc.io doesn’t come cheap—but it does offer a great option for those who are ready to commit to a career change.
It presently offers learning focused specifically on building skills in two tracks: web design or web development.
Canvas Network
Canvas Network provides educators access to professional development courses and programs, and some of its courses are also open to the public. You can sign up with just an email and access a wide range of content and lessons. Its content is also available under an open license, so if you want to ultimately create your own content and lesson plans, you can utilize what Canvas makes available in some cases.
Canvas offers courses and tools in a variety of languages, making it open and more accessible than some other options in our list.
Codecademy
Previously backed by the White House, Codecademy is dedicated to teaching people how to code. The free service helped more than 45 million people in its first seven years and has stuck with its fast-paced teaching method designed to keep you moving and stay encouraged with supportive groups and a gamified points system. There are free courses as well as a paid Pro Membership that offers more direct guidance and support for creating a real-world portfolio that you can use to jumpstart a freelance career.
The school offers courses on a number of languages—including PHP, Python and Ruby—and students are often already building and deploying projects by the time they finish their course.
Udemy

Course Topics | Development, Business, Health & Fitness, Photography, IT + Software, Marketing, Language, Music, Lifestyle
Pricing | A la carte ($10–$200+)
Certifications Available | Certificate of completion only
Our Pick | Ultimate Photoshop Training: From Beginner to Pro
Udemy was founded by Eren Bali, Oktay Caglar, and Gagan Biyani to make quality education more accessible—and they’ve made some serious progress. To date, it’s achieved over 295 million enrollments around the world with courses ranging from Instagram marketing to aromatherapy. Starting at just $10.99, you can access more than 100,000 online courses that work with your pace and your lifestyle—plus, it’s yours forever. There’s a reason why businesses like Adidas and Mercedes-Benz utilize Udemy for their teams. Available in many languages and accessible around the world, you have nothing to lose and everything to gain by taking up Udemy’s trial offer—and get to learning.
Review | “I like the fact that the videos are self-paced. You can utilize the training for any duration of time. Also, you can read the reviews of others prior to choosing a course. Once you purchase a course, it is yours forever and you can always refer back to it. Many courses with a lot of material can be purchased for less than $20. I would equate this to an App store for training courses. Courses are submitted and Udemy provides a large and competitive market which brings down the price and improves the quality.” – Tom K.LEARN MORE
edX

Course Topics | Computer Science, Languages, Engineering, Psychology, Writing, Biology, Marketing
Pricing | Free–$26,000 (online Master’s Degrees)
Certifications Available | MicroMasters Programs, Online Master’s Degrees, Professional Certificates
Our Pick | Corporate Finance, Columbia University
What happens when two of the most prestigious higher education institutions come together for open learning? edX. Harvard and MIT collaborated to create the only MOOC (massive online open courses) provider and nonprofit around. Today, it works with more than 130 partners, including Georgetown University, Brown University, and Dartmouth, to name a few. The online learning options run the gamut: you can choose one course or an online Master’s Degrees, with a range of professional certificates and “micro” Master’s programs.
Review | “I love the self-paced modules on edX, in a range of different subjects. Professional development opportunities can be somewhat limited in Higher Education, but edX is a terrific way to explore different areas at no extra cost to the department. I’ve been able to continue my Spanish on my own time, learn additional skills through International Business courses, and even explore personal interests related to Human Rights – and I can do it on my lunch break! None of this would be possible without edX!” – Ilse D.LEARN MORE
Masterclass

Course Topics | Film & TV, Music & Entertainment, Culinary Arts, Writing, Sports & Games, Lifestyle, Science & Technology, Design, Photography, Fashion, Business, Politics & Society
Pricing | $90 (Single class); $15/month billed annually (Unlimited classes)
Certifications Available | None
Our Pick | Dr. Jane Goodall Teaches Conservation
Masterclass brings revered and renowned heroes, icons, and experts to your screen for one-on-one classes in their areas of expertise. Whether you’re learning acting from Natalie Portman, scientific thinking from astrophysicist Neil DeGrasse Tyson, or self-expression from famed queen of drag RuPaul, each practice and process is broken down into an average of 20 on-demand, cinematically produced video lessons (at an average of 10 minutes each) and comes with a downloadable workbook with optional assignments. Once enrolled, learners gain access to the online student community, and once completed, Masterclass provides tips on how to further use the site to continue their studies. With over 80 instructors and more than 90 hours of education and insight, the fields you can explore are endless.
Review | “Annie [Liebovitz]’s MasterClass offered insight into her approach, but also offered the permission to create, create, create! And with a tenacity I had been afraid to embody.” – Jesse L.LEARN MORE
Conclusion
Coursera is an online education platform created by Stanford computer scientists Andrew Ng and Daphne Koller. It offers free online courses taught by professors from the top universities across the globe along with certificate; for this you need to signup on coursera website with your full name, email address, phone number and country of residence to receive your course skills.