Finternals
Developer tools, system libraries, and documentation for FinTech
Financial Tools
Powerful tools to help you manage and analyze financial data, including our popular Reverse Snowball Calculator for debt management.
Our tools are designed to be secure, efficient, and easy to use, with a focus on privacy and data protection.
Learn about our calculatorDeveloper Resources
Comprehensive libraries and APIs for FinTech developers, with documentation and examples to help you build robust financial applications.
Our resources are regularly updated to reflect the latest industry standards and best practices in financial technology.
Explore developer docsFinTech Solutions
Custom solutions for financial institutions and FinTech startups, designed to meet specific needs and challenges in the financial sector.
Our team of experts can help you implement and integrate financial technologies into your existing systems and workflows.
Learn about our solutionsFeatured Product
Reverse Snowball Calculator
Smart Debt Payment Planning Made Simple. Our Reverse Snowball Calculator helps you optimize your debt payments by prioritizing high-balance accounts first.
Key Features:
- Upload your credit card data via CSV
- Prioritize highest balances first
- Track payment sequence based on due dates
- Interactive visualizations
- Complete payment summary
Privacy First:
- 100% secure processing
- Zero data storage
- No account required
- Local processing only