Back to school is a common excuse to refresh your skills, and this Udemy roundup pulls together a mixed bag of free short courses across AI tooling, data, and everyday dev platforms. Think of it as a sampler from the wider Udemy catalogue, competing with the free tiers on Coursera, edX and YouTube playlists, but in Udemy’s familiar “video plus exercises” format. The spread is broad, from agent workflows and RAG concepts through to practical platform topics like Jira, Drupal and Microsoft’s DAX, so it suits dipping in rather than committing to a single long pathway.
Who is this for?
Best for learners who want quick, focused introductions, or working developers and analysts trying to plug a specific gap. If you already know the basics, these can still be useful for tooling updates, new patterns (like AI agents), or a structured refresher.
- AI and LLM topics: agent frameworks, RAG concepts, prompt and workflow practice
- Data stack coverage: lakehouse ideas, Databricks themes, DAX for Power BI style modelling
- Team and web tooling: Jira fundamentals, Drupal site building basics