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
Install the library from npm like so:
npm install hyperformulaOnce 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 })}`);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
