SpreadJS Designer Component present as a control that could be embedded into your web application easily, and also provided flexible, customizable configuration to achieve your business logic.

Jspreadsheet is a lightweight, vanilla javascript plugin to create amazing web-based interactive data grids with spreadsheet like controls compatible with Excel, Google Spreadsheets and any other spreadsheet software.

Full Excel style number formatting

SheetJS Spreadsheet data parser and writer

Spread.Sheets react support

Structured SpreadsheetProject contracts and validation for Hara.

Feature-rich JavaScript Spreadsheet (Excel) control with built-in support for selection, editing, formatting, importing and exporting to Excel for Angular

React spreadsheet import for xlsx and csv files with column matching and validation

SheetJS Spreadsheet data parser and writer

Google Sheets API -- simple interface to read/write data and manage sheets

Best Data Grid for React with Spreadsheet Look and Feel.

a javascript xpreadsheet

Plugin which adds editable and customizable Spreadsheet widgets to CKEditor 4.

Plugin for automatic calculations of markdown table formulas.

Excel Workbook Manager - Read and Write xlsx and csv Files.

A spreadsheet component

Pure spreadsheet document, formula, clipboard, and history primitives for the Numera family.

Lower-level WorkPaper formula runtime for Node services with JSON persistence and verified formula readback.

A general-purpose color library for JavaScript

Best Data Grid for Vue with Spreadsheet Look and Feel.