Rushiram Finance – Privacy-first, client-side financial calculators

Name: Rushiram Finance – Privacy-first, client-side financial calculators
Availability: InStock
Author: sethuu

by sethuu·Mar 2, 2026·2 points·1 comment

Visit Project View on HN

AI Analysis

●MidSolve My Problem

Privacy-first calculators, but Google Sheets and Zerodha already handle SIPs and taxes.

Strengths

•100% client-side execution—sensitive financial data never touches a server
•Covers gap for privacy-conscious Indian users (SIPs, old vs new tax regimes for FY26-27)
•Multi-tool consolidation (investments, loans, inflation, tax) in one place

Weaknesses

•Crowded space: Zerodha Coin, Google Sheets, and specialist tax software already solve each use case
•No differentiation beyond privacy; calculator accuracy unverified and no comparison to established tools

Post Description

Hi HN,

I spent 3 weekends building Rushiram Finance. I wanted a single, reliable place for financial planning without having to worry about my personal numbers being tracked, stored, or sold. As a fun note on the development process, I built this alongside Google Gemini, using it heavily as an AI coding assistant to help bring the project to life.

It features a suite of calculators for SIPs, loans, interest, and taxes.

The biggest technical priority was privacy. The financial calculators run entirely client-side, meaning your sensitive inputs never leave your browser. For full transparency: the site is hosted on Vercel and I use their built-in analytics for basic, anonymous traffic tracking, but absolutely zero personal or financial data is collected or sent to any server.

I’d love for you to try it out. Any feedback on the UI, the accuracy of the calculators, or suggestions for what to add next would be greatly appreciated!