Learn Data Cleaning Online: Free Course with AI Tutor & Certificate
You will learn to identify and fix data quality issues in this 1-hour free data cleaning course. Across 40 video lessons, you'll master tools like Python, Excel, and OpenRefine. By the end, you can automate text data formatting and build real-world projects like standardizing Amazon's CRM data.
What you'll learn in this Data Cleaning course
Five concrete outcomes you'll walk away with, each mapped to modules in the curriculum below.
Identify and resolve common data quality issues using various data cleaning techniques.
Utilize tools like Excel, OpenRefine, and Python to effectively clean and transform data.
Develop and implement a comprehensive data cleaning plan to ensure data accuracy and reliability.
Automate data cleaning tasks to improve efficiency and maintain data quality.
Apply best practices in handling and cleaning text data, including normalization and regular expressions.
Data Cleaning course syllabus
01 Introduction to Data Cleaning
- What is Data Cleaning?
- Importance of Data Cleaning
- Common Data Quality Issues
- Overview of Data Cleaning Tools
02 Understanding Data Types and Formats
- Data Types in Data Cleaning
- Handling Different Data Formats
- Converting Data Types
- Identifying Data Type Issues
03 Data Cleaning Techniques
- Removing Duplicates
- Handling Missing Values
- Dealing with Outliers
- Standardizing Data
04 Data Cleaning Tools and Software
- Introduction to Data Cleaning Tools
- Using Excel for Data Cleaning
- Introduction to OpenRefine
- Using Python for Data Cleaning
05 Data Cleaning with Python
- Setting Up Python Environment
- Using Pandas for Data Cleaning
- Data Cleaning with NumPy
- Data Cleaning with Python Libraries
06 Data Cleaning with Excel
- Excel Basics for Data Cleaning
- Using Formulas for Cleaning
- Data Validation in Excel
- Using Excel Functions for Cleaning
07 Data Cleaning with OpenRefine
- Getting Started with OpenRefine
- Faceting and Filtering Data
- Clustering and Merging Data
- Transforming Data with OpenRefine
08 Data Cleaning Best Practices
- Developing a Data Cleaning Plan
- Documenting Data Cleaning Processes
- Ensuring Data Quality
- Automating Data Cleaning Tasks
09 Handling Text Data
- Cleaning Text Data
- Removing Stop Words
- Text Normalization
- Regular Expressions for Text Cleaning
10 Data Cleaning Case Studies
- Case Study: Cleaning Survey Data
- Case Study: Cleaning Financial Data
- Case Study: Cleaning Social Media Data
- Case Study: Cleaning E-commerce Data
Real-world projects you'll work on
Practice the exact kind of work Data Cleaning professionals do on the job.
Cleaning and Standardizing Customer Data for Amazon's Global CRM System
Optimizing Data Quality for Uber's Ride-Sharing Analytics
Automating Data Cleaning Processes for Google's Ad Performance Metrics
Ensuring Data Integrity in Netflix's Content Recommendation Engine
Skills you'll gain
Add these to your LinkedIn profile and resume the day you finish.
Who should take this Data Cleaning course?
And exactly what you need before starting (spoiler: almost nothing).
This course is for
- Aspiring data analysts looking to build a strong foundation in data preparation.
- Working professionals who spend too much time manually fixing spreadsheets.
- Career switchers entering the tech industry who need to understand basic data integrity.
- Students in India wanting practical, project-based data skills for their resumes.
Prerequisites
- No prior data science experience is required to begin this course.
- Basic familiarity with spreadsheets (like Microsoft Excel or Google Sheets) is helpful.
- A computer with an internet connection to run Python and OpenRefine.
How learning works on LearnTube
The structure of a bootcamp, the price of free.
AI curates your path
Our AI picks the top 1% of video content for each topic and arranges it into a structured, goal-based curriculum. No more tutorial roulette.
Learn, then get quizzed
After every lesson, your AI tutor asks you a question and gives personalised feedback on your answer, so gaps get fixed immediately.
Finish with proof
Complete the course, build the capstone project, and claim a certificate recognised by 900+ hiring partners.
A complete Data Cleaning course: free, structured and job-focused
You will be able to take messy, unstructured datasets and format them for reliable analysis by the end of this data cleaning training. The curriculum starts with a simple What is Data Cleaning? lesson before moving into practical applications. You'll quickly progress through 10 modules, including Understanding Data Types and Formats, Data Cleaning Techniques, and Data Cleaning Tools and Software.
The learning experience focuses heavily on applied skills. You will practice Data Cleaning with Python, Data Cleaning with Excel, and Data Cleaning with OpenRefine. To ensure these concepts stick, you'll complete four hands-on projects. These include Optimizing Data Quality for Uber's Ride-Sharing Analytics and Automating Data Cleaning Processes for Google's Ad Performance Metrics. You also get specific training on Handling Text Data and Data Cleaning Best Practices, finishing up with real-world Data Cleaning Case Studies.
LearnTube makes this process highly efficient. We pair curated YouTube videos with interactive AI-tutor quizzes after every single lesson to test your knowledge. The learning content is entirely free, and you can join 60,000+ other learners on the platform. If you don't just want to learn but also want to prove your skills, you can upgrade to an optional paid certificate once you finish the material.
Jobs you can target after learning Data Cleaning
Data Cleaning is a gateway skill for some of the fastest-growing roles in tech.
Cleans and interprets raw data to help companies make better decisions.
Maintains database accuracy and standardizes incoming information.
Prepares datasets for reporting dashboards and visual analytics.
Typical entry-level salary ranges in India as of September 2026. Actual compensation varies by city, company and experience.
Earn a Data Cleaning certificate employers recognise
Finish the course and claim a certificate you can share anywhere.
- Learn 100% free: every lesson, quiz and the AI tutor cost nothing
- Claim your certificate when you complete the course (an optional paid add-on)
- Recognised by 900+ hiring partners across India
- One click to share on LinkedIn and add to your resume
Why learners choose LearnTube
Real reviews from Google. You learn free, you get assessed free, and you pay only if you want the certificate.
Though I have 11 years of experience as an HRBP, the course helped me refresh my knowledge and gave me insights into new trends in the market. The modules were clear and easy to understand, and the quizzes were well designed. I have added the certificate to my LinkedIn profile.
I had a lot of doubts while learning, but the AI chatbot answered them in detail with simple summaries. The videos on the platform saved me a lot of time as I didn't have to search YouTube and watch random content.
Just earned my certificate in HR Management from LearnTube.ai! The platform is user-friendly and the assessment was a great way to validate my knowledge. Feeling proud of this accomplishment!
I enrolled in a LearnTube personalized course to get into a Data Analytics role. It helped me learn SQL in depth and gave me hands-on experience with Power BI. I attached the LearnTube certificate to my CV, it added credibility to my profile, and I'm currently in the interview process.
The interface is user-friendly and intuitive, making it easy to navigate the course. I encountered no errors during my time using the platform, which was a refreshing change from other online learning platforms.
Just cleared the Business Analyst assessment and got certified! Loved how the course simplifies big concepts like data-driven decision making into short, practical lessons. The automated quizzes kept me on track the whole time. Perfect boost for my resume!
The certificate gave me a real edge during my B.Tech. By the time I graduated, I had skills that set me apart from my peers, and the certification opened up more job opportunities. It gave me the confidence to stand out during interviews.
I manage many software projects as a General Manager and was looking for a good certification program to stay competitive. After researching many programs, I chose LearnTube and it was much better than I expected. The material is well-organized and practical, and what I liked most is the lifetime access.
Frequently asked questions
Everything learners ask before starting this Data Cleaning course.
What can I build after taking this data cleaning tutorial?
You will build automated scripts and clean datasets for four major projects. This includes standardizing customer data for a global CRM system and ensuring data integrity for a content recommendation engine.
Is data preparation still a valuable skill to learn?
Yes. Analysts spend a massive portion of their time fixing messy data. Mastering these formatting techniques makes you highly efficient and sets a strong foundation for advanced data science roles.
Do I have to pay for this data cleaning full course?
No, the learning materials are completely free. You can watch all 40 video lessons and take the AI quizzes at zero cost. The official certificate is an optional paid upgrade.
Which tools will I use during the training?
You will practice with Python, Microsoft Excel, and OpenRefine. The curriculum includes dedicated modules for each tool so you can choose the best software for different types of datasets.
Will I receive a data cleansing certification?
You can earn an official certificate of completion if you choose the paid upgrade. It verifies your ability to handle text data and automate quality checks for potential employers.
Is this course self-paced?
Yes, you can complete the 1-hour curriculum entirely on your own schedule. The video lessons and AI-tutor quizzes are available on-demand, letting you learn whenever it suits you best.
How does the AI tutor work?
The AI tutor generates a specific interactive quiz immediately after every video lesson. It tests your understanding of the tools and techniques just covered, ensuring you actually retain the new information.
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Start learning Data Cleaning today, for free
40 lessons, an AI tutor that never gets tired, and a certificate at the finish line. All you need is an hour a day.
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