Your First App on G-Suite Marketplace

Add-ons are customized extensions of G Suite productivity applications such as Gmail, Google Sheets, and Google Docs. Add-ons can add new capabilities to the G Suite applications they extend, help automate tasks, or make third-party services or information available in G Suite. Add-ons are built using Apps Script—a rapid application development platform based on JavaScript that lets you create business and productivity applications quickly and easily.