Firebase - Firebase is a cloud service designed to power real-time, collaborative applications for mobile and web.
DolphinCSV - DolphinCSV is a hosted CSV importer with automatic column matching, data validation, and data cleaning.
Blazor - An experimental web UI framework using C#/Razor and HTML, running in the browser via WebAssembly
Layercode UseCSV - Add CSV import functionality to your app in minutes
Flatfile - The new standard for data import
Sheety - Turn any Google sheet into an API instantly, for free. Power websites, apps, or whatever you like, all from a spreadsheet. Changes to your spreadsheet update your API in realtime. Neat