Building a fast, privacy-first Ratio Calculator to fix bloated web utilities

Hey Indie Hackers! 👋

Most online math tools and ratio calculators are cluttered with heavy ads, popups, and slow backend scripts that ruin the user experience—especially on mobile devices.

To fix this, I launched Ratio Calculator Pro: a lightweight, pure client-side web utility designed for instant calculations with zero tracking.

### Key Features:

- ⚡ Instant Execution: 100% client-side JavaScript (no server delays)

- 📐 Proportion Solver: Solves missing values ($A:B = C:D$) instantly

- 🎬 Aspect Ratio Scaling: Easy resolution scaling (16:9, 4:3, custom ratios) for designers and creators

- 🔒 Privacy-First: Zero data collection or storage

Try the live tool here:

👉 [Ratio Calculator Pro Tool](https://www.globaltoolsbox.online/2026/09/ratio-calculator.html)

I’d love to get feedback from fellow builders! What features or additional math utilities would make your workflow smoother?