Formualizer Docs
Introduction

What is Formualizer?

Formualizer is a cross-runtime spreadsheet engine with workbook APIs for Rust, Python, and WASM.

Formualizer is a spreadsheet formula engine you can embed in your own product.

It gives you one core behavior model across runtimes:

  • Parse formulas into structured tokens/AST.
  • Store workbook cells (values + formulas).
  • Evaluate dependencies and return computed values.
  • Reuse the same logic from Rust, Python, and JavaScript/WASM.

Project surfaces

  • Rust crate: formualizer (meta crate) plus focused crates like formualizer-workbook.
  • Python package: formualizer (PyPI).
  • JS/WASM package: formualizer (npm).

Typical use cases

  • Add Excel-like formulas to your app without embedding Excel.
  • Recalculate workbook-driven business logic in backend jobs.
  • Share one formula model between backend and frontend runtimes.

See also

Introduction

Understand what Formualizer provides, how the workspace is organized, and where to start.

Why Formualizer?

Why teams choose Formualizer for spreadsheet logic in production systems.

On this page

Project surfacesTypical use casesSee also