Learn to clean messy data using AI without writing any code. Spot data problems, fix inconsistent text, handle missing values and duplicates, reformat columns, and build a reusable cleaning workflow with ChatGPT and Claude.
Messy data is one of the biggest time sinks in any job or study project, and you don't need to know how to code to fix it. This free course teaches you how to clean spreadsheets and CSV files using AI tools like ChatGPT and Claude, walking you through the exact problems that make raw data unreliable: inconsistent text entries, missing values, duplicate rows, and columns that need reformatting. Each lesson is grounded in real cleaning tasks so you can apply what you learn immediately to your own files.
The course covers the full cleaning process from start to finish. You'll learn how to spot data problems before they cause errors, how to fix messy or inconsistent text, how to handle blanks and duplicates without guessing, and how to reshape columns into a format that's actually usable. The final lesson brings everything together into a repeatable workflow you can reuse on future datasets.
This course is for students, analysts, researchers, and anyone who works with data but has no programming background. Whether you're cleaning survey responses, financial records, or exported reports, these AI-assisted techniques will save you hours of manual work. It's completely free, and completing the course along with the final exam earns you a certificate of completion you can add to your LinkedIn profile or resume.
1 modules • 6 lessons
Finish every lesson and pass the final exam to earn this free, shareable certificate.

Certificate of Completion
has successfully completed
12 lessons · Final exam passed

Michail Ouroumis
Founder, FreeAcademy.ai
Sample preview. Your name appears on the certificate when you complete the course. Learn more
You'll learn to clean real-world messy data using ChatGPT and Claude, covering how to spot data problems, fix inconsistent text, remove duplicates, handle missing values, and reformat columns. By the end, you'll have a repeatable cleaning workflow you can apply to your own spreadsheets or CSV files.
No coding is required at any point. The course is designed specifically for beginners who work with data but have no programming experience. If you can open a spreadsheet, you have everything you need to get started.
Yes, the course is completely free. After finishing all the lessons and passing the final exam, you receive a certificate of completion that you can share on LinkedIn or add to your resume.
The course uses ChatGPT and Claude to assist with data cleaning tasks. You'll learn how to write prompts that get these tools to identify problems and suggest fixes for common data issues like formatting errors, missing entries, and duplicate rows.
It's a great fit for students, researchers, office workers, and anyone who regularly handles exported data, survey results, or reports and wants to clean them faster without manual effort. You don't need a data or analytics background, just a willingness to work with real files.

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