Rowporter is an embeddable CSV & Excel import widget for SaaS applications. Your users upload files, columns are auto-matched (315+ synonyms across 10 languages), validation errors shown inline, and you receive clean JSON via webhook. Features: → CSV, XLSX, XLS up to 125k rows → Custom JavaScript validation rules → White-label on all plans → HMAC-signed webhooks with retry → Sandbox mode & schema versioning Free tier available. Paid plans from $15/mo