An open-source headless spreadsheet for business web apps

HyperFormula is a headless spreadsheet built in TypeScript, serving as both a parser and evaluator of spreadsheet formulas. It can be integrated into your browser or utilized as a service with Node.js as your back-end technology.

HyperFormula doesn't assume any existing user interface, making it a general-purpose library that can be used in various business applications. Here are some examples:

• Custom spreadsheet-like app
• Business logic builder
• Forms and form builder
• Educational app
• Online calculator

• Function syntax compatible with Microsoft Excel and Google Sheets
• High-speed parsing and evaluation of spreadsheet formulas
• A library of ~400 built-in functions
• Support for custom functions
• Support for Node.js
• Support for undo/redo
• Support for CRUD operations
• Support for clipboard
• Support for named expressions
• Support for data sorting
• Support for formula localization with 17 built-in languages
• GPLv3 license
• Maintained by the team that stands behind the Handsontable data grid

• Client-side installation
• Server-side installation
• Basic usage
• Configuration options
• List of built-in functions
• API Reference

• Integration with React
• Integration with Angular
• Integration with Vue
• Integration with Svelte

Install the library from npm like so:

npm install hyperformula

Once installed, you can use it to develop applications tailored to your specific business needs. Here, we've used it to craft a form that calculates mortgage payments using the PMT formula.

import { HyperFormula } from 'hyperformula';

// Create a HyperFormula instance
const hf = HyperFormula.buildEmpty({ licenseKey: 'gpl-v3' });

// Add an empty sheet
const sheetName = hf.addSheet('Mortgage Calculator');
const sheetId = hf.getSheetId(sheetName);

// Enter the mortgage parameters
hf.addNamedExpression('AnnualInterestRate', '8%');
hf.addNamedExpression('NumberOfMonths', 360);
hf.addNamedExpression('LoanAmount', 800000);

// Use the PMT function to calculate the monthly payment
hf.setCellContents({ sheet: sheetId, row: 0, col: 0 }, [['Monthly Payment', '=PMT(AnnualInterestRate/12, NumberOfMonths, -LoanAmount)']]);

// Display the result
console.log(`${hf.getCellValue({ sheet: sheetId, row: 0, col: 0 })}: ${hf.getCellValue({ sheet: sheetId, row: 0, col: 1 })}`);

Run this code in CodeSandbox

Contributions are welcome, but before you make them, please read the Contributing Guide and accept the Contributor License Agreement.

HyperFormula is available under two different licenses: GPLv3 and proprietary. The proprietary license can be purchased by contacting our team at Handsontable.

Copyright (c) Handsoncode