CleanCSV

What it does

CleanCSV is the fastest way to clean and normalize messy CSV files. Fix duplicates, empty rows, encoding issues, broken rows, inconsistent headers, and more — in seconds. Just create a free account, upload your CSV, and instantly download a perfectly cleaned version. Simple, accurate, and built for marketers, analysts, and developers.

Clean, fix, and format messy CSV files online in one click. Remove duplicates, fix encoding, trim whitespace, and export perfect CSVs. Free and fast.

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  Hi HN, I built a small utility to clean up messy CSV exports without opening Excel or writing pandas scripts. Upload a CSV → preview → choose columns to dedupe → normalize/trim → download the cleaned file. Free tier, no signup required for basic use. Stack: -Lovable for the app -Supabase (auth, Postgres, storage, edge functions) -Stripe for subscriptions/day passes Processing runs server-side; I kept the architecture intentionally simple and low-ops. Would love feedback on UX, edge cases, or features you’d want. Website: https://csv-cleaner.com/

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