Hello folks, Data Science is one of the most in-demand skills in the current technology world and all kinds of companies are looking for accomplished Data Scientists to make sense of the massive data they are collecting every day to increase sales, profit, and overall business process.

If you want to learn Data Science and Data Analysis and looking for some free online training courses to start learning this useful skill then you have come to the right place.

Earlier, I have shared the best Data Science courses and In this article, I am going to share free Data Science courses from Udemy, Coursera, DataCamp, and freeCodecamp for both beginners and experienced programmers.

What is data science, why is it so popular, and why did the Harvard Business Review hail it as the “sexiest job of the 21st century”? You will find answers to all of those frequently asked questions by joining these free Data Science.

You can join these free online courses to learn Data Science from scratch. They are also good to fill gaps in your knowledge if you already doing Data Analysis, and the big point, they are completely FREE.

If you will look around, the majority of the companies are running around for data. Some are looking for the user’s personal data whereas some are looking for professional details of the user.

For the last decade, every company needs data in order to sell their products. Data comes in handy in several industrial processes. Products are being developed after proper data analysis of different users.

These days, companies are looking for experts who can handle data for them. They need data analysts and since it’s a very new profession, negligible competition is there. Besides this, companies are ready to pay good salaries to data analysts.

If you are looking for a career in this field, you need to learn the basics of data analysis and if you need resources you have come to the right place. In the past, I have shared free courses to learn machine learning and Microsoft Excel, and in this article, you’ll learn about 10 free data science and data analysis courses that you can attend in order to begin your career as a data analyst in 2021.

All these courses are free and the best in their class. Besides this, all these courses are trusted by hundreds of students and have high ratings.

By the way, if you need a comprehensive course and you don’t mind spending few bucks to learn a valuable skill like Data Science then I highly recommend Data Science A-Z™: Real-Life Data Science Exercises Included course by Kirill Eremenko and his SuperDataScience team on Udemy.

Data Science A-Z™: Real-Life Data Science Exercises Included

My name is Kirill Eremenko and I am super-psyched that you are reading this! Professionally, I am a Data Science…

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10 Free Data Science Online Courses to Learn in 2021

Here is a list of the best free online courses you can join to become a Data Scientists 2021. These free online courses have been chosen from sites like Udemy, Coursera, DataCamp, etc.

These online courses have been created by experts and trusted by many developers around the world and they are made free by their instructor for educational purposes.

You can join a couple of these courses to learn Data Science from scratch and add an in-demand skill to your resume.

1. An Introduction to Data Science [Udemy Free Course]

This is one of the best free Udemy courses to learn Data Science. If you are a visual learner, this course is the best pick for you. Through this course, you’ll learn to handle the data efficiently.

In Data analysis, you need to have skills that will help you filter out the most important data from a pile of unwanted data. This course will help you develop these skills, besides this, you will learn about data science and its history.

Apart from this, this course will provide you a road map to that master the data analysis field. After this course, you will easily distinguish between noise and real information.

The most important feature of this course is that it’s a short and simple course that provides you value every second. This is a 44-minute video course and over 2000+ students have enrolled in it so far.

Here is the link to join this free course — An Introduction to Data Science

2. Essentials of Data Science [FREE Udemy Course]

This is another free online course from Udemy to learn and understand DataScience. If you’ll look into the industry that deals with data, you’ll understand how important they are.

Every company has a department that deals with data and this department are termed the data analyst department. In order to lead a successful professional career as a data analyst, you need to have an idea about excel sheets and their delivery.

This course is designed to give you an overview of the three essential areas of Data Science, the areas that every good data scientist should know, and being proficient in these areas can be the key to your success.

After completing this free Data Science course you will have a clear understanding of what Data Science is all about, and can make a clear decision of if it’s the right field for you.

You will also know what areas are important in Data Science and hence can make informed decisions on what areas to focus on learning.

Here is the link to join this free course — Essentials of Data Science

3. What is Data Science? [Coursera FREE Course]

If you are looking for a free introductory course on Data Science then you will be excited to join this free course on Coursera, one of the leading online learning portals and probably the best place to learn Data Science and Machine learning.

The course is a perfect introduction to data science, making a person comfortable and showing the participants of the course the daily work of data scientists, and simplifying the meaning of data science.

This course is also part of many best Coursera Specializations or Professional Certificates programs and completing this course will count towards your learning in any of the following programs:

After going through this course, you will have a much better idea of how to describe data science and common terms associated with the field (like machine learning).

Here is the link to join this free Coursera course — What is Data Science

4. Intro to Data for Data Science [FREE Udemy Course]

This one more online Data Science course from Udemy which you can join for FREE. In data analysis, you are going to deal with data of course and you can’t be a successful data analyst if you can’t understand the data. This course will help you understand the data and the science behind it.

In this course, you’ll learn how to use the data, how to prepare the data in order to perform operations on it. You’ll understand the complete process to extract important information from the pile of data.

Here are the key concepts you will learn in this free Data Science course:

What data are and why they are important
How data are used in data science
Types of data that exist in data science
How data are represented in a computer
How to extract information from a table of data

Overall, this course will help you to learn the key aspects related to data and these concepts will have you get better at data analysis.

Here is the link to join this free online course — Intro to Data for Data Science

5. Introduction to Data Science using Python [Free Course Udemy]

This is one of the easiest online courses you’ll find on the internet regarding data science. It’s a 2.5-hour long video course you will learn Data Science using Python Programming language, the most popular programming language for Data Science in the world.

This is an entry-level course so don’t expect to get detailed information about the subject. This is the basic step that you need to take in order to lead a successful data analyst career.

In this course, you’ll learn the following concepts:

Basics t of Data Science and Analytics
how to use Python and Scikit learn
Understanding of all buzz words like “Data Science”, “Machine learning”, “Data Scientist” etc.

All these concepts are very important when it comes to data analysis. You must attend this short and informative course.

Here is the link to join this free course — Introduction to Data Science using Python

6. IBM Data Science Professional Certificate [Coursera

This Coursera course is specifically designed for the IBM platform. This course will help you understand Data Science in the IBM cloud environment and all its basic elements.

In this course, you’ll learn the following key concepts of data analysis:

All the important filters to sort, group, and generate desired results.
SQL statements to manipulate data
Real-time analysis of actual data sets.

This course will help you kickstart your career as a data analyst like the other 1.8 lakh students. This a detailed course but it’s going to be your one-stop solution as you won’t need any other courses regarding data analysis.

Here is the link to join this certification— IBM Data Science Professional Certificate

Remember, in Coursera, a Professional Certification or Specialization is a collection of courses, most of the courses are free-to-audit which means you can join them for FREE to learn but you won’t get access to quizzes and assessments.

You will also not get any certificate of completion. You need to pay to get a certificate either by joining the specialization or professional certification or taking a Coursera Plus membership.

Coursera Plus | Unlimited Access to 3,000+ Online Courses

Invest in your professional goals with Coursera Plus. Get Unlimited access to over 90% of courses, Guided Projects…

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7. Data Science for Everyone [Free Course by DataCamp]

This is another best free online course you can join to learn Data Science. This course is offered by DataCamp, one of the best interactive learning websites for Data skills like Data Analysis, Data Science, etc.

This course provides an introduction to data science with no coding involved. In this non-technical course, you’ll be introduced to everything you were ever too afraid to ask about this fast-growing and exciting field, without needing to write a single line of code.

Through hands-on exercises, you’ll learn about the different data scientist roles, foundational topics like A/B testing, time series analysis, and machine learning, and how data scientists extract knowledge and insights from real-world data.

So don’t be put off by the buzzwords. Start learning, gain skills in this hugely in-demand field, and discover why data science is for everyone!

Here is the link to join this awesome course — Data Science for Everyone

8. Lean Data Science in 6 Hours for FREE [Youtube + FreeCodeCamp]

This is another amazing free course to learn Data Science for Beginners. In this 6 hours long Youtube course on the FreeCodeCamp channel, you’ll learn the important elements of data science.

You’ll be introduced to the principles, practices, and tools that make data science the powerful medium for critical insight in business and research. You’ll have a solid foundation for future learning and applications in your work.

With data science, you can do what you want to do, and do it better. This course covers the foundations of data science, data sourcing, coding, mathematics, and statistics.

Here is the link to watch this course right here:

9. Learn Data Science With R Part 1 of 10 [Free Udemy Course]

If you may not know but Python is not the only programming language for Data Science, while it certainly the best programming language, you can also use R for Data Science and that’s what this course will teach you.

R is not as popular as Python but it's a decent programming language when it comes to Data Analysis, Statistics, and Data Science.

If you want to learn Data Science using the R programming language then this free course on Udemy is definitely a great resource to join. Unlike many free courses which are very short, this is an 8-hour long course on Data Science with R.

It is also clear and complete and the instructor has done a great job in teaching basics, which means you will learn a lot about Data Science as well as the R programming language.

Here is the link to join this free course — Learn Data Science With R

10. NumPy for Data Science Beginners: 2021 [Udemy Free Course]

NumPy is an important library for both Data Science and Machine Learning and a good knowledge of this Python library goes a long way in your day-to-day job as Data Scientists.

Here are the things you will learn in this course:

Different Numpy function applied as Matrix/Array Operations
Different Numpy function for Linear Algebra, Statistics, Math
Numpy for Matplotlib visualization
Numpy Quizzes

If you are looking for a free NumPy course then look no further this Udemy course is perfect to join. This course covers everything from how to install and import NumPy to how to solve complex problems involving array creation, transformations, and random sampling.

The course is presented as a series of on-demand lecture-style videos with lots of animated examples, code walkthroughs, and challenge problems to test your knowledge, which also makes it interesting to watch and allows you to learn at your own pace.

Here is the link to join this free NumPy course — NumPy for Data Science Beginners

That’s all about the best free online courses to learn Data Science for Beginners in 2021. If you want to become a Data Scientist then joining one of these courses is a good idea. Data analysis is the need of the hour. You can have a bright future as a data analyst, but you have to understand that data analysis is a very complex and important task.

You can’t afford to get distracted. In order to increase your concentration, it is recommended to take at least 2–3 courses related to data analysis and then decide whether you actually want to be a data analyst or it was just a temporary fascination.

Other Data Science, Machine Learning, and Artificial Intelligence Articles may like

Thanks for reading this article so far. If you find these free Data Science online courses useful then please share them with your friends and colleagues. If you have any questions or feedback, then please drop a note.

P. S. — If you can afford and looking for a comprehensive Data Science course to truly master the art of Data Science and learn all the tools, concepts, and theory then I highly recommend you to join this The Data Science Course 2021: Complete Data Science Bootcamp course by 365 Careers on Udemy. It’s the best Udemy course on Data Science and completely with your time and money.

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10 Free Data Science Online Courses for Beginners to Join in 2021