Harvard Online
CS50's Introduction to Programming with Python
Harvard's dedicated Python course: functions to unit tests, regex and object-oriented programming.
Free certificateProgramming
60 hrsBeginner
173 free courses
All free online courses
Search and filter everything we list. Every card says whether the certificate is free, paid or not offered, and links straight to the provider.
26 of 173 free courses match
Harvard Online
CS50x: Introduction to Computer Science
Harvard's famous intro to computer science, from Scratch and C to Python, SQL and the web.
Free certificateProgramming120 hrsBeginnerPython for Everybody (PY4E)
Python for Everybody (PY4E)
Dr. Chuck's free Python course and textbook, the same material as his Coursera course.
Free certificateProgramming60 hrsBeginnerKaggle Learn
Data Cleaning
Kaggle's course on fixing missing values, scaling, dates, encodings and messy entries.
Free certificateData Science4 hrsBeginnerKaggle Learn
Data Visualization
Kaggle's short course on making line, bar, scatter and distribution charts with seaborn.
Free certificateData Science4 hrsBeginnerKaggle Learn
Pandas
Kaggle's short hands-on course on reading, selecting, grouping and cleaning data with pandas.
Free certificateData Science4 hrsBeginnerKaggle Learn
Python
Kaggle's quick Python primer for data science, run entirely in browser notebooks.
Free certificateData Science5 hrsBeginnerfreeCodeCamp
Python Certification
freeCodeCamp's new interactive Python certification, launched December 2025, with a free exam.
Free certificateProgramming300 hrsBeginnerCisco Networking Academy
Python Essentials 1
Cisco and Python Institute's free beginner Python course, aligned with the PCEP exam.
Free certificateProgramming30 hrsBeginnerUniversity of Helsinki
Python Programming MOOC 2026
University of Helsinki's free Python course with automatic exercise checking and optional credits.
Free certificateProgramming200 hrsBeginnerHarvard's AI course: search, knowledge, uncertainty, optimization, learning and language.
Free certificateAI & Machine Learning70 hrsIntermediateHarvard Online
CS50's Web Programming with Python and JavaScript
Harvard's follow-on to CS50x: build and deploy web apps with Django, JavaScript and SQL.
Free certificateWeb Development120 hrsIntermediatefreeCodeCamp
Data Analysis with Python Certification (Legacy)
freeCodeCamp's project-based certification in NumPy, pandas and visualization.
Free certificateData Science300 hrsIntermediateCisco Networking Academy
Python Essentials 2
The free follow-on to Python Essentials 1, covering intermediate Python and prep for PCAP.
Free certificateProgramming40 hrsIntermediateDeepLearning.AI
ChatGPT Prompt Engineering for Developers
Andrew Ng and OpenAI's Isa Fulford on prompting LLMs through the API to build apps.
Paid certificateAI & Machine Learning2 hrsBeginnerMadhavan Mukund's NPTEL course on Python, sorting, searching and core data structures.
Paid certificateProgramming48 hrsBeginnerIIT Madras' short NPTEL course on Python, pandas and visualization with two case studies.
Paid certificateData Science16 hrsBeginnerIIT Ropar's popular NPTEL course that teaches Python through games and puzzles.
Paid certificateProgramming30 hrsBeginnerMIT OpenCourseWare
6.0001 Introduction to Computer Science and Programming in Python
MIT's classic intro to computational thinking and Python, with full lectures and problem sets.
No certificateProgramming60 hrsBeginnerMIT OpenCourseWare
6.100L Introduction to CS and Programming using Python
MIT's 2022 full-semester intro to programming in Python, taught by Ana Bell.
No certificateProgramming80 hrsBeginnerMicrosoft (open-source curricula)
Data Science for Beginners
Microsoft's free 10-week, 20-lesson open curriculum introducing data science.
No certificateData Science40 hrsBeginnerMicrosoft (open-source curricula)
Generative AI for Beginners
Microsoft's free 21-lesson course on building generative AI apps in Python and TypeScript.
No certificateAI & Machine Learning30 hrsBeginnerMicrosoft (open-source curricula)
Machine Learning for Beginners
Microsoft's free 12-week, 26-lesson curriculum on classic machine learning with scikit-learn.
No certificateAI & Machine Learning50 hrsBeginnerMIT OpenCourseWare
6.0002 Introduction to Computational Thinking and Data Science
MIT's follow-on to 6.0001 on optimization, simulation, statistics and intro machine learning.
No certificateData Science60 hrsIntermediate