Data analytics is the most searched free-course topic in Nigeria, and also the one with the most misleading listings — half the courses advertised as “free with certificate” are free to watch and charge for the certificate. Here is what each of these actually gives you.
5 courses · every certificate claim checked 31 Aug 2026 · no affiliate links
1. Coursera
The full path from spreadsheets through SQL, R and Tableau, built around case studies rather than lectures.
The most widely recognised of the free-to-audit options, and the one Nigerian employers are most likely to have heard of. You can work through every lesson without paying; the certificate needs a subscription.
2. freeCodeCamp
Numpy, Pandas and Matplotlib taught through five projects you have to build to pass.
Genuinely free end to end, certificate included, and project-based — you finish with code you can show rather than a completion badge.
3. Macquarie University via Coursera
Excel from formulas through pivot tables, lookup functions and dashboards.
Unglamorous and the most immediately employable thing on this list. Most analyst jobs advertised in Lagos still test Excel, not Python.
4. Microsoft Learn
Building reports and dashboards in Power BI, from Microsoft directly.
Free including the learning path badges. The paid PL-300 exam is separate and optional — you do not need it to have the skill.
5. W3Schools
SQL from SELECT to joins and aggregation, with an editor you can type into.
Not a course so much as a reference you can practise in, and the fastest way to get from nothing to writing a working query. The certificate is paid and worth skipping.