By Quick answer: Can I learn data science and get certified for free?
- Free certificates — Kaggle Learn, freeCodeCamp Data Analysis with Python, Harvard CS50 and CS50 AI.
- Free to audit — IBM Data Science courses on Coursera.
- Order — CS50 or Kaggle Python, then freeCodeCamp projects, then CS50 AI for ML.
- Portfolio — publish everything on Kaggle or GitHub.
Key takeaways
- You can learn data science to an employable foundation without paying.
- Free certificates from freeCodeCamp and Kaggle require completing projects, which is what employers value.
- Pay only when a target job names a specific credential.
Data science is one of the most generously taught subjects online. Between Kaggle, freeCodeCamp and Harvard's open courses, you can learn Python, SQL, analysis and machine learning and earn free certificates for each, then build a public portfolio that does more for your job search than any paid badge. Here are the five best free routes.
Five free data science options
Kaggle, freeCodeCamp and Harvard include free certificates; IBM is free to audit. Checked 3 November 2026.
| # | Certification | Cost | Time | Prove it free |
|---|---|---|---|---|
| 1 | Kaggle Learn Micro-Courses (ML, Python, SQL)Kaggle (Google) | Free1 | Short micro-courses, a few hours each | Free test |
| 2 | freeCodeCamp CertificationsfreeCodeCamp | Free2 | Self-paced | Free test |
| 3 | CS50: Introduction to Computer ScienceHarvard University | Free3 | Self-paced | Free test |
| 4 | CS50's Introduction to AI with PythonHarvard University | Free4 | Self-paced | Free test |
| 5 | IBM Data Science Professional CertificateIBM / Coursera | Coursera plan5 | 4 months at 10 hours a week | Free test |
Prove it free before you pay for an exam
Take the free test first. Pay for an exam only when you pass.
Every pick above has a matching free practice test on Science of Apps, one of the world's largest libraries of free certification tests (1,200+). Check your level before you pay for an exam, or add a verifiable credential to LinkedIn while you study. (Disclosure: we publish these tests; the certifications above earn us nothing.)
- Machine Learning Fundamentals CertificationPractise for Kaggle Learn Micro-Courses (ML, Python, SQL) before you pay.Start free test →
- Front-End Development CertificationPractise for freeCodeCamp Certifications before you pay.Start free test →
- Computer Science Fundamentals TestPractise for CS50: Introduction to Computer Science before you pay.Start free test →
- Data Science Certification TestPractise for IBM Data Science Professional Certificate before you pay.Start free test →
Each free option, and what it covers
- KaggleKaggle Learn Micro-Courses (ML, Python, SQL)Hands-on data skills, certificate freeFree
- freeCodeCampfreeCodeCamp CertificationsPython data analysis with projects, freeFree
- Harvard UniversityCS50: Introduction to Computer ScienceProgramming foundations, freeFree
Kaggle Learn Micro-Courses (ML, Python, SQL)
- Cost
- Free1
- Time
- Short micro-courses, a few hours each
Free micro-courses in Python, pandas, SQL, data visualisation and machine learning, each with a free certificate, plus datasets and competitions to practise on. Kaggle's free micro-courses cover Python, pandas, SQL, data visualisation and machine learning, each in a few hours with hands-on notebooks and a free certificate. They're ideal practice alongside a structured course.
Best forhands-on data skills, certificate free
freeCodeCamp Certifications
- Cost
- Free2
freeCodeCamp's Data Analysis with Python certification requires building projects with NumPy, pandas and Matplotlib that pass automated tests. Free, and portfolio-ready. freeCodeCamp's free certifications in web design, JavaScript, Python, data analysis and more are earned by building projects that must pass automated tests. The projects make useful portfolio pieces.
Best forPython data analysis with projects, free
CS50: Introduction to Computer Science
- Cost
- Free3
Harvard's CS50 builds programming foundations, including Python and SQL, through demanding problem sets. Free certificate on completion. Harvard's free introduction to computer science teaches C, Python, SQL and web development through demanding problem sets, with a free certificate. An optional paid verified certificate is available through edX.
Best forprogramming foundations, free
CS50's Introduction to AI with Python
- Cost
- Free4
Harvard's follow-on course teaches AI and machine learning with Python through seven projects, free certificate included. Harvard's free course teaches AI with Python through projects: search, optimisation, machine learning, neural networks and language. It assumes some Python and offers an optional paid verified certificate through edX.
Best forML for programmers, free
IBM Data Science Professional Certificate
- Cost
- Coursera plan5
- Time
- 4 months at 10 hours a week
IBM's Data Science courses can be audited free on Coursera, giving a structured path; the certificate requires a subscription or financial aid. IBM's professional certificate covers Python, SQL, data visualisation and machine learning basics with hands-on labs and a capstone. It takes about four months at ten hours a week, and financial aid is available on Coursera.
Best fora structured path, free to audit
A free data science path
- Month 1 — Kaggle Python and pandas, or CS50's first weeks.
- Month 2 — Kaggle SQL and data visualisation.
- Month 3 — freeCodeCamp Data Analysis with Python projects.
- Months 4–5 — CS50 AI or Kaggle ML courses.
- Ongoing — publish notebooks and take Science of Apps' free data science test.
How we ranked these picks
We included only data science learning that's free on the issuer's site as of 3 November 2026, prioritised options with free certificates and project-based assessment, and list five rather than pad to seven.
Frequently asked questions
Is there a free data science certification?
Yes. Kaggle Learn, freeCodeCamp's Data Analysis with Python and Harvard's CS50 courses include free certificates. IBM Data Science is free to audit, with a paid certificate.
What is the best free data science course?
For structure, audit IBM Data Science. For hands-on practice, Kaggle Learn. For foundations, Harvard CS50. Most learners combine two of them.
Are free data science certificates worth it?
Yes as proof of learning, especially freeCodeCamp's project-based certification. Employers care more about the projects you publish.
Can I become a data scientist for free?
You can learn the skills for free. Getting hired also depends on a strong portfolio, networking and sometimes a paid credential for specific roles.
Is there a free data science test?
Yes. Science of Apps offers a free data science certification test with an instantly graded, verifiable certificate.
Sources
- Kaggle (Google) — Kaggle Learn Micro-Courses (ML, Python, SQL), official page (checked 3 Nov 2026)
- freeCodeCamp — freeCodeCamp Certifications, official page (checked 3 Nov 2026)
- Harvard University — CS50: Introduction to Computer Science, official page (checked 3 Nov 2026)
- Harvard University — CS50's Introduction to AI with Python, official page (checked 3 Nov 2026)
- IBM — IBM Data Science Professional Certificate, official page (checked 3 Nov 2026)
- Checked November 4, 2026. Figures that change — fees, salaries, prices — are reviewed every six months; if something is out of date, tell us.
Where to go from here
- The best online certifications of 2027 — the full top 10 across every field
- Best Data Science Certifications of 2027: Top 10 Ranked — related guide
- Best AI Certifications of 2027: 10 Ranked by Career Impact — related guide
- Career guides by Science of Apps for 2027Free Python certifications in 2027: five ways to learn Python and prove it without paying5 free Python certifications for 2027: Harvard CS50 and CS50 AI, freeCodeCamp Python, Kaggle Learn Python and Microsoft Learn, with free certificates.
- Career guides by Science of Apps for 2027Free web development certifications in 2027: five ways to learn to code for the web without paying5 free web development certifications for 2027: freeCodeCamp, Harvard CS50, Microsoft Learn, Kaggle Python and Meta Front-End with financial aid.
- Career guides by Science of Apps for 2027Free data analytics certifications in 2027: five ways to learn analytics without paying5 free data analytics certifications for 2027: Kaggle SQL and visualisation, freeCodeCamp data analysis, Google Analytics, CS50 and Microsoft Learn.
- Career guides by Science of Apps for 2027The best Python certifications of 2027: eight for beginners, data people and developersThe 8 best Python certifications of 2027: PCEP, Harvard CS50 and CS50 AI, freeCodeCamp, Kaggle, IBM Data Science, Meta Back-End and the ML Specialization.
- Career guides by Science of Apps for 2027Python certifications for beginners: six best for 2027, from first line of code to first projectThe 6 best Python certifications for beginners in 2027: Kaggle Python, Harvard CS50, freeCodeCamp, PCEP, IBM Data Science and Google Advanced Data Analytics.
- Career guides by Science of Apps for 2027Free IT certifications in 2027: six ways to start an IT career without paying6 free IT certifications and training paths for 2027: ISC2 CC, Harvard CS50, freeCodeCamp, Microsoft Learn, Google IT Support aid and Kaggle.
Get the ideas, not the noise.
Sign up with Google and we’ll send you short UX psychology tips by email — why people tap, stall and leave, and what to do about it. Unsubscribe anytime. Prefer something to keep? Get the free Laws of UX guide as a PDF.
Prove the skill before you pay for the exam.
Start with the free Machine Learning Fundamentals Certification. 1,200+ free, test-based certifications graded on our server. Pass and get a founder-signed certificate with a credential ID employers can verify.