SuperCalc
15+ working calculators for finance & health (more weekly)
SuperCalc launched on September 28, 2025 with 7 votes, #2,024 of 8,160 launches that month. The site was still online in September 2026, 1 year on.
What it does
15 professional calculators for finance & health - compound interest, retirement, BMI, mortgage & more. Zero ads, no signup, mobile-friendly. Adding new calculators weekly. Built for anyone tired of ad-filled calculator sites.
Official SuperCalc website with 500+ free online calculators for mortgage, tax, retirement, health, business, and everyday planning.
500 + free calculators for finance, tax, health, business, real estate, loans, and everyday math. No signup, no install — just enter your numbers and get a clear answer in your browser. These shortcuts point visitors from broad discovery pages into high-intent calculators that already exist on SuperCalc. Enter principal, annual rate, and month count to verify short-term interest or late-fee math without a spreadsheet. Estimate California engaged-time and mileage guarantees for Uber, Lyft, DoorDash, and delivery work. Convert meeting times between Eastern Time and India Standard Time for remote teams and interviews. Compare COBRA premiums against Marketplace options before the 60-day…from supercalc.dev
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Source: Product Hunt launch ↗
Launched alongside, September 2025
the whole month →
The site hit #1 on HN about a year ago. Got enough traffic that I turned it into a proper API. What's there: - REST API — 35k products, manually filterable by category, free key, 60 req/min - CLI — npx anycrap random -c food - faker.js plugin — bundled, no API call, works offline - HuggingFace dataset — full 35k rows for ML/training https://anycrap.shop/developers
AI · 2025 · anycrap.shop
I made a built-from scratch Wayland Compositor to display any GUI app* in the terminal! I think there is a lot of unexplored potential in custom Wayland compositors, a lot of really cool things you can embed existing applications into! So, I started with embedding apps into the terminal because that is the easiest input/output (output is just utf-8 and I use the great `chafa` library for that, and I just read from stdin for the input). If you have any other ideas for cool Wayland compositors, let me know. I purposedly wrote 80% the app in Typescript to appeal to the most developers and…
Dev tools · 2025 · github.com
- IR
Years ago I stumbled across a basic version of this concept and it stuck with me. I knew if I was ever going to take on such a project, it would need to be flawless, but without coding experience it was just another idea that would never happen. By the end of 2024, as AI coding tools exploded everywhere, I finally had a way to make it real. I started from zero knowledge and spent months collaborating with AI agents as a learning experience. Every pixel and every function went through me. The AI translated what I asked for into code, but every decision was human. I didn't use existing OS…
AI · 2025 · mitchivin.com
