I built SheetSync, an open source spreadsheet app as an alternative to Google Sheets

a spreadsheet app similar to Google Sheets, and recently decided to open source it

It is built with Next.js, TypeScript, and Supabase for the backend and database. Some of the features include formulas, cell merging, data validation, charts, PDF and CSV export, and org/workspace management with invite links. There are also some pre built templates with merged cells and custom row heights for common use cases.

I will be very happy if you guys check out the repository, read the README, and consider giving it a ⭐ or contributing

Repo: https://github.com/hassan524/sheetsync
Live version: https://sheetsync.site