IronCalc

IronCalc is a modern, work-in-progress spreadsheet engine and ecosystem designed to power spreadsheets in many environments, from backend automation to interactive web apps. It provides a core calculation engine plus tooling such as XLSX reading and writing, with a focus on developer-friendly integration and scalability.

Key Features

• Spreadsheet calculation engine implemented in Rust
• XLSX reader and writer for importing/exporting spreadsheets
• Designed to be embedded into other products and workflows
• Supports usage from multiple environments via bindings/targets (including JavaScript via WebAssembly)
• Early web-based preview available as part of the ecosystem

Use Cases

• Embedding interactive spreadsheets into web applications, dashboards, or content platforms
• Automating spreadsheet generation, evaluation, and export in backend services
• Building custom spreadsheet “skins” such as terminal, desktop, or browser-based clients

Limitations and Considerations

• The project is explicitly work-in-progress; feature coverage and compatibility may be incomplete compared to mature spreadsheet suites

IronCalc is a strong foundation for teams that need a programmable spreadsheet engine rather than a full office suite. It aims to provide a high-quality core engine and interoperable tooling that can be integrated into diverse applications.