Rowporter – Fast embeddable CSV & Excel import for SaaS

Summary: Rowporter is an embeddable widget that enables SaaS applications to import CSV and Excel files with automatic column matching and inline validation. It processes files up to 125,000 rows, delivering clean JSON data via secure webhooks.

What it does

Users upload CSV, XLSX, or XLS files, which Rowporter auto-maps using 315+ synonyms in 10 languages and validates with custom JavaScript rules in a WASM sandbox. Data is sent through HMAC-signed webhooks with retry support.

Who it's for

Developers and SaaS product teams needing a quick, secure, and customizable data import solution without building from scratch.

Why it matters

It reduces weeks of development time for data import features by providing a ready-to-integrate, secure, and scalable import widget.