Qamrul Hassan

Web Developer Building Modern Web Apps

About

I'm a web developer passionate about building useful products for the web. I enjoy creating fast, intuitive applications with Next.js and React. Currently, I'm working on CostNest, a collection of free online calculators and tools that help people make everyday decisions more easily.

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Tastemaker

Gone streaking

Maker History

CostNest100+ free calculators for daily life
Jun 2026

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Joined Product HuntMay 31st, 2026

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24h ago

CostNest - 100+ free calculators for daily life

CostNest is a growing collection of 100+ free online calculators designed to help users make smarter financial and everyday decisions. From loan, EMI, fuel, and vehicle cost calculators to budgeting, conversion, health, and utility tools, CostNest provides fast, accurate results with a simple user-friendly experience. No registration required.