I Open-Sourced 15+ Core Financial & Math Algorithms in Vanilla JavaScript (Amortization, SIP, Compound Interest)

Description and use

The author released a MIT‑licensed vanilla JavaScript library implementing core financial formulas—loan EMI, SIP future value, and compound interest—removing tracker bloat and hidden server logic.

Problem

Calculator websites are bloated with trackers and hide formulas behind server code, preventing verification.

Outcome

The library offers transparent, lightweight implementations of key financial formulas, enabling developers and students to verify calculations and build custom tools.

Workflow

• Identify common financial calculations
• Implement formulas in plain JavaScript
• Publish code on GitHub
• Create live interactive tools on CalcCentrals site

Evidence

Most calculator websites on the internet today suffer from two glaring problems: They are bloated with heavy third‑party tracker scripts and sluggish layouts.

Source

I built and open-sourced financial-math-formulas under the permissive MIT License.

Source

Live Interactive Tool: You can test this algorithm with dynamic interactive amortization charts on the CalcCentrals EMI Calculator.

Source