Paydown.js
Loan payment calculation library with advanced features. Demo available at http://135.181.40.67/paydowncalc/
Also available as an NPM package.
Features
- fully leap year aware
- freely selectable calculation period
- daily interest calculation
- negative interest calculation
- recurring payments
- recurring payment period length setting
- day count methods supported:
- act / 360
- act / 365
- payment methods supported:
- equal installment
- equal principal reduction
- freely settable rate changes and extra payments
- optional calculation of payment fees
Browser usage
See dist directory.
Node.js usage examples
See examples directory.
GUI demo
Both examples above are also available in the GUI demo, see http://paydowncalc.loan/
Click Import example button to get the menu.
Demo source codes can be found from gui-demo/reactive directory.
Documentation
See doc directory.
To Do
- more tests
- better input validation
- better documentation
- more day count methods
- loan term features
- etc.
Contributing
Contributions are welcome.
License
Copyright (c) 2019 Jussi Utunen
Licensed under the MIT License