Licenses & Attribution

SlappFramework integrates with several commercial and open-source libraries to provide enterprise-grade data editing capabilities. This page provides full transparency about licensing requirements and dependencies.

⚠️ Important: Commercial use of SlappFramework requires obtaining appropriate licenses for commercial dependencies listed below.

💼 Commercial Dependencies

Handsontable

Website: handsontable.com

Purpose: Excel-like data grid component for bulk data editing

License: Dual license model

✅ Free for non-commercial use
💰 Commercial license required for commercial use (starting at $899/developer/year)

Why we use it: Provides authentic Excel-like bulk editing experience in web browsers

View Handsontable Pricing →

EPPlus

Website: epplussoftware.com

Purpose: .NET Excel library for generating and reading Excel files

License: Dual license model

✅ Free for non-commercial use under Polyform Noncommercial License
💰 Commercial license required for commercial use (starting at $499/developer/year)

Why we use it: Enables dynamic Excel template generation with foreign key dropdown validation

View EPPlus Pricing →

💡 Combined licensing cost: Approximately $1,200-1,400 per developer annually for commercial use

📖 Open Source Dependencies

SlappFramework also utilizes several open-source libraries under permissive licenses (no commercial restrictions):

AG-Grid Community	MIT License	Data grid display and filtering
Bootstrap	MIT License	UI framework and styling
jQuery	MIT License	JavaScript utilities
Select2	MIT License	Enhanced dropdown controls
ASP.NET Core	MIT License	Web framework
Dapper	Apache 2.0	Data access
CsvHelper	MS-PL/Apache 2.0	CSV processing

✅ Licensing Requirements Summary

For Non-Commercial Use (FREE)

SlappFramework can be used freely for:

Personal projects
Educational purposes
Non-profit organizations
Internal tools for non-commercial organizations

For Commercial Use

Commercial use requires purchasing licenses for:

Handsontable Commercial License - Required for any commercial application
EPPlus Commercial License - Required for any commercial application

Getting Licenses:
• Handsontable: handsontable.com/pricing
• EPPlus: epplussoftware.com

⚙️ License Configuration

When using SlappFramework commercially, you must configure license keys in your application:

EPPlus configuration (C#):

// EPPlus license configuration (required before using ExcelPackage)
ExcelPackage.License.SetCommercial("<Your EPPlus License Key>");

Handsontable configuration (JavaScript):

// Handsontable license configuration
const hot = new Handsontable(container, {
  licenseKey: '<Your Handsontable License Key>',
  // other configuration...
});

🎯 Target Audience

SlappFramework is designed for enterprise development teams who either:

Already use Handsontable and/or EPPlus in their projects
Have budget for professional development tools
Need enterprise-grade bulk data editing capabilities
Value time savings over licensing costs (the framework saves months of development)

🙏 Attribution

SlappFramework is built by Chris Hamilton and incorporates the excellent work of:

Handsoncode (Handsontable team)
EPPlus Software AB
The open-source community (Bootstrap, jQuery, Dapper, and many others)

💬 Questions?
For licensing questions specific to Handsontable or EPPlus, contact their respective support teams directly.
For SlappFramework-specific questions, see: GitHub Issues

SlappFramework respects and acknowledges the intellectual property rights of all dependency creators. Users are responsible for ensuring compliance with all applicable licenses.

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