Free · open source · installable

Learn Power BI by doing the work.

Start with hands-on skills you can check against real numbers. Then take tickets, incidents and decisions from a simulated BI team: the situations Power BI developers usually meet only after years on the job.

Start with Beginner Find my starting point

Three ways in

Learn the skills

Three levels and seven specialist tracks: Power Query, modeling, DAX, SQL, testing, deployment, Fabric. Every assignment has a result you can check and a worked solution.

Skill Mode →

Practise real work

Join the BI team at Northwind Outdoors. Vague tickets, disputed numbers, a security incident, a failed refresh at 6am, a merge conflict and an architecture review.

Experience Mode →

Prepare for interviews

Plain-English flashcards with spaced repetition, and a timed mock interview you answer out loud. No Power BI needed, so it works on your phone.

Interview practice →

Already on the job? The BI Developer Toolkit has troubleshooting trees, a performance clinic, checklists and templates for real work.

What are you trying to become?

Pick one and you get a short route through the site. You can change it any time, and nothing is locked.

A promise we can keep. No website can give you five years of experience. What it can do is put you in front of the problems, failures and decisions that usually take years to meet, on purpose and with feedback, so you recognise them when they happen for real. Every number in the exercises is generated from a fixed seed and checked automatically.