IronCalc

The premium Open Source alternative to Handsontable

🎯 Best for:Developers building their own spreadsheet-like applications or calculation tools.
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Apache-2.0License

What is IronCalc?

Replaces proprietary spreadsheet engines in custom-built internal tools. Written in Rust to provide high-speed formula evaluation and Excel compatibility.

Tech Stack
RustLow-Code & Builder

Why IronCalc?

  • High-speed Rust execution
  • WASM support for browsers
  • Clean separation of engine/UI

Limitations

  • No built-in UI
  • Evolving API
  • Limited documentation
3/5/2026
Last Update
127
Forks
187
Issues
Apache-2.0
License
Financial Leak Detected

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Competitor Cost
-$1,440
/ year (est. based on Handsontable)
Self-Hosted
$0
/ year
Team Size10 Users
150+
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