Turn Web Data into AI Training Datasets (Free Tools + Methods)

LLMs need domain-specific training data. Web scraping is the source.

Best Sources for AI Training Data

1. Reddit discussions → domain conversations (tool)
2. YouTube comments → audience opinions (tool)
3. Stack Overflow → technical Q&A (tool)
4. arXiv papers → research text (via MCP)
5. Wikipedia → encyclopedia knowledge (tool)

All 77 tools: GitHub

Custom dataset — $20: Payoneer