# HyperFormula

> HyperFormula is a headless, open-source spreadsheet calculation engine for TypeScript and JavaScript. It evaluates Excel-compatible formulas deterministically and runs in both the browser and Node.js, with no UI included.

HyperFormula is maintained by Handsoncode, the team behind Handsontable. It is used as the calculation engine inside data grids, business applications, financial models, and AI-powered apps that need reliable, repeatable spreadsheet semantics.

## Site

- [Landing page (HTML)](https://hyperformula.handsontable.com/): Marketing site overview
- [Landing page (Markdown)](https://hyperformula.handsontable.com/index.md): Same content as plain markdown for agents
- [Sitemap](https://hyperformula.handsontable.com/sitemap.xml): XML sitemap of canonical URLs
- [robots.txt](https://hyperformula.handsontable.com/robots.txt): Crawl policy including Content-Signal preferences (ai-train=yes, search=yes, ai-input=yes)

## Documentation

- [Documentation home](https://hyperformula.handsontable.com/docs/): Guides, configuration, and examples
- [API reference](https://hyperformula.handsontable.com/docs/api/): Public API surface
- [Live demo](https://hyperformula.handsontable.com/docs/guide/demo.html): Interactive grid powered by HyperFormula
- [Full docs corpus (Markdown)](https://hyperformula.handsontable.com/docs/llms-full.txt): All guide pages concatenated into one Markdown file for agents
- [Docs pages as Markdown](https://hyperformula.handsontable.com/docs/guide/basic-usage.md): Every guide page is also served as plain Markdown (append `.md` to any docs page URL)

## Source

- [GitHub repository](https://github.com/handsontable/hyperformula): Source code, issues, releases
- [npm package](https://www.npmjs.com/package/hyperformula): Published package
- [Claude skills](https://github.com/handsontable/handsontable-skills): Official Claude Code / agent skills for Handsontable and HyperFormula

## Licensing

- [License key guide](https://hyperformula.handsontable.com/docs/guide/license-key.html): How to apply a commercial or GPL key
- [Pricing](https://hyperformula.handsontable.com/#pricing): Commercial tiers and free hobby license
- [Contact sales](https://handsontable.com/get-a-quote): Get a quote for commercial use