Hey HN, I built ImportKit (https://importkit.app) — a drop-in React widget that handles CSV and Excel imports for SaaS apps. This is my first software product ever. I work in sales and marketing for a maritime software company in Iceland, and I kept seeing the same problem: every SaaS app eventually needs CSV import, and every team builds it from scratch. Column mapping, validation, error handling — it’s a lot of repetitive work. So I decided to try building a solution myself. ImportKit is an embeddable widget you install with npm install @importkit/react and configure with a few props. It handles: ∙ AI-powered column mapping (auto-suggests matches between CSV headers and your fields) ∙ Built-in validation (email, phone, required fields) ∙ CSV and Excel support (XLSX, XLS) ∙ Theming to match your app’s look Setup takes about 5 minutes. There’s a free tier (100 rows/month) so you can try it without commitment. I’m a one-person team running this as a side project. I’d genuinely appreciate any feedback on the product, the landing page, or the approach. And if you’ve solved CSV imports differently in your apps, I’d love to hear how. https://importkit.app Docs: https://docs.importkit.app