Calculeaf

Calculeaf is a web-based engineering calculation worksheet built as an alternative to Mathcad for formulas, unit-aware math, notes, plots, and reusable technical documents. It offers unit-aware mathematics supporting SI, USCS, and CGS measurement systems, document-style worksheets combining equations, text, plots, and images, and template and snippet creation for reusable calculations. Calculeaf includes engineering functions covering constants, statistical operations, and matrices, 2D plotting capabilities, AI-assisted worksheet authoring, and Mathcad file import support for both Prime and 15 formats. The product offers a working web application with example calculations across various engineering domains, comprehensive user documentation and guides, an active blog for updates, and a customer support messaging system. Pricing is freemium: the tool offers free access directly in the browser with no sign-up needed to try and no license requirements, with a paid tier available on its pricing page for additional features.