Hi HN! I am a co-founder, excited to launch HyperFormula: our open-source, TypeScript engine for performing complex calculations in web apps.<p>HyperFormula supports CRUD operations, undo and redo, clipboard operations, and much, much more. Think of it as of the calculation engine behind Excel, but without Excel.<p>The library is agnostic towards user interface ("headless"). It can power data grids, smart documents, e-learning tools, you name it.<p>Check out the demo [1] to see it in action. (Note: the UI is not part of the project.)<p>We’d love to know what you think!<p>[1] <a href="https://handsontable.github.io/hyperformula/guide/demo.html" rel="nofollow">https://handsontable.github.io/hyperformula/guide/demo.html</a>