What is Google Apps Script?

Google Apps Script is a cloud-hosted JavaScript runtime that lives inside your Google account and has direct, authenticated access to Google Workspace services like Sheets, Drive, Gmail, Calendar, and Docs. You write code in a browser IDE, deploy it as a web app, and Google gives you a public URL that runs your function on demand. There is no server to provision, no billing meter, and no separate authentication layer for your own data - the script already runs as you.

Apps Script is how millions of automations get built without hiring a developer: custom Sheets functions, scheduled triggers, Gmail filters, Docs templates. For SaaS vendors, it is also a way to offer a deep Google integration without ever seeing the user's data.

SheetLink Forms ships a small Apps Script connector (about 80 lines of JavaScript) that you paste into your own Sheet and deploy as a web app. From that moment, WordPress posts form submissions straight to your Apps Script URL, and the script writes rows to your Sheet using the built-in SpreadsheetApp service. Because the script is authenticated as you, no OAuth tokens are ever stored on your WordPress site, and no data ever touches the SheetLink servers. It is the most privacy-preserving architecture you can build for a form-to-Sheets pipe.