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· 14 min read
Oleg Kulyk

LLM-Powered Data Normalization: Cleaning Scraped Data Without Regex Hell

Web scraping has become a foundational capability for analytics, competitive intelligence, and training data pipelines. Yet the raw output of scraping—HTML, JSON fragments, inconsistent text blobs—is notoriously messy. Normalizing this data into clean, structured, analysis‑ready tables is typically where projects stall: field formats vary, schemas drift, and edge cases proliferate. Traditional approaches rely heavily on regular expressions, handcrafted parsers, and brittle heuristics that quickly devolve into “regex hell.”