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Dev tools · August 27, 2025

I built an open-source CSV importer that I wish existed

At my previous startup, CSV import was make-or-break for customer onboarding. We built the first version in three days. Then reality hit: Windows-1252 encoding, European date formats, embedded newlines, phone numbers in five different formats. We rebuilt that importer multiples over the next six months. Our onboarding completion rate dropped 40% at the import step because users couldn't fix errors without starting over. The real problem isn't parsing (PapaParse is excellent). It's everything after: mapping "Customer Email" to your "email" field, validating business rules, and letting users…

I built an open-source CSV importer that I wish existed launched on August 27, 2025 with 5 votes and more than 75% of that year's launches. The site was still online in September 2026, 1 year on.

What it does

Open-source CSV Importer for React. Contribute to importcsv/importcsv development by creating an account on GitHub.

In the maker’s words, at launch

At my previous startup, CSV import was make-or-break for customer onboarding. We built the first version in three days. Then reality hit: Windows-1252 encoding, European date formats, embedded newlines, phone numbers in five different formats. We rebuilt that importer multiples over the next six months. Our…

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