Which CS50 professional certificate should I get?
Harvard's CS50 professional certificates offer valuable introductions to key computer science concepts. Compare certificates and find out how to add a Harvard credential to your résumé.
By: James M. Tobin, Edited by: Rebecca Munday
Published: September 5, 2025
Harvard University's CS50 computer science courses introduce concepts like algorithms, artificial intelligence (AI), data structures, information security, and programming languages to students of all skill levels. These self-paced programs lead to certificates that can help accelerate your professional development.
Browse courses, compare their content, and choose your pathway in this popular and prestigious educational program.
CS50 professional certificates
You can earn a CS50 professional certificate by completing Harvard course packages on the edX platform. Choose from these options:
Computer Science for Artificial Intelligence
Best for: Learners seeking knowledge of fundamental computer science concepts and AI skills with direct real-world applications
The AI-focused CS50 professional certificate includes two self-paced courses. You can begin with a robust introduction to computer science, then apply your learning in a focused AI course emphasizing the Python programming language.
Content specifically covers:
- Computer science and programming basics
- Core AI and machine learning principles
- Using AI in Python
You'll emerge with a solid foundation of applied knowledge in artificial intelligence, machine learning, and the design of intelligent computer systems.
Computer Science for Python Programming
Best for: Building strong knowledge foundations in Python and other programming languages widely used in computer coding for AI, data science, and software and web development
Python is a versatile and relatively straightforward programming language with extensive applications in multiple emerging computer science fields. This two-course professional certificate emphasizes not only Python, but also:
- C, CSS, HTML, structured query language (SQL), and JavaScript
- Arguments, Boolean expressions, conditionals, functions, and other fundamental programming concepts
- Algorithms, data structures, information security, software engineering, and web development
You'll also learn about data validation, debugging, entity-relationship modeling, and unit testing as you complete practical and applied exercises.
Computer Science for Web Programming
Best for: Learners interested in applied technical skills that support self-led website development efforts and/or potential access to entry-level web development employment
This self-paced two-course program explores:
- Foundational concepts in computer science
- Programming and database querying languages, including JavaScript, Python, and SQL
- Bootstrap, Django, and Flask web development frameworks
Upon completing the program, you'll command a diverse suite of fundamental web development and database design skills. You'll also learn how to use cloud-based programming tools, write and deploy application programming interfaces, and build interactive user experiences.
Equipped with these proficiencies, you can seek entry-level opportunities in database design, web design, and web development.
Computer Science for Data Science
Best for: Quickly building technical knowledge in analytics, statistical computing, data visualizations, and other data science fundamentals
If you'd like to explore data science and build career-ready introductory skills, consider this certificate pathway.
Emphasizing R programming, the program covers the analytical and business applications of data science through targeted work in data abstraction, data structures, algorithms, and the critical thinking and decision-making skills that enhance their applied impact.
Computer Science for Cybersecurity
Best for: Learners of all knowledge and experience levels interested in developing a scalable base of essential cybersecurity skills
As the global cybersecurity skills gap persists, this certificate program can help position you to meet critical employer needs. This two-course pathway operates at the intersection of cybersecurity and data science to cover:
- Key technical proficiencies in organizational cybersecurity management
- Cyberattack prevention
- Threat assessment and management proficiencies
You'll emerge with a solid base of risk evaluation, vulnerability assessment, and incident response knowledge. It can complement existing technical proficiencies in network engineering and information technology or function as a standalone set of career-ready skills.
Computer Science for Databases using SQL
Best for: Developing targeted data architecture and management skills with strong and growing applications in many industries
The Bureau of Labor Statistics reports a projected job growth of 4% for database administrators and architects from 2024-34, keeping pace with the average rate for all occupations. This two-course program can get you started on the path to these careers, and other roles in database design, data infrastructure, and data management.
You'll learn about:
- C, Python, and SQL languages, and their applications
- Fundamental principles of database design
- Information management best practices
The program builds data-focused skills in a general computer science context to foster a well-rounded base for future development.
Costs and timelines for CS50 professional certificates
CS50 certificate costs vary by subject, as detailed in the table below. You can audit individual courses at no charge, but you need to buy the course if you want unlimited access to its materials or stack it into a certificate program.
Weekly time requirements also vary. If you already have relevant technical knowledge, you'll likely lean toward the lower end. You'll probably need to invest more time if you're new to computer science.
| Professional certificate | Cost (as of June 2025) | Time to complete |
|---|---|---|
| Computer Science for Artificial Intelligence | $466.20 | 5 months (7-22 hours per week) |
| Computer Science for Python Programming | $466.20 | 6 months (5-14 hours per week) |
| Computer Science for Web Programming | $376.20 | 6 months (6-14 hours per week) |
| Computer Science for Data Science | $466.20 | 5 months (6-16 hours per week) |
| Computer Science for Cybersecurity | $601.20 | 4 months (5-14 hours per week) |
| Computer Science for Databases using SQL | $466.20 | 5 months (6-16 hours per week) |
Can you get financial aid for CS50 professional certificates?
With edX, most verified courses and learning pathways leading to a formal academic credential qualify for financial aid. Certificate-track CS50 programs meet this definition.
To receive financial aid, you'll need to complete an application process after enrolling in a course's free auditing track. This resource on edX financial aid explains the process in full.
How to choose which CS50 professional certificate is right for you
With so many options to choose from, you may find it difficult to settle on a particular CS50 learning pathway. To help you decide, consider the following factors:
- Skills you'll gain: Are you looking to build specific skills or explore a particular technical niche in computer science? If so, let that guide you to the best fit for your learning goals.
- Career relevance: Certain skills may complement your career development plans more than others. If you already work in tech, consider how these new abilities can supplement your current skill set.
- Cost: CS50 programs are affordably priced for most people, but every student's budget differs.
- Completion timelines: Typical timelines range from 5-22 hours per week for 4-6 months. The self-paced courses make it easier to move quickly if you have some existing knowledge of the subject.
Finally, remember that you always have the option of completing multiple CS50 professional certificates. You don't have to limit yourself to a single program if you have a strong interest in multiple courses.