Developer & Web Engineering Utilities
A suite of custom-engineered interactive tools, live compilers, and performance calculators designed for modern web developers.
Live HTML, CSS & JS Code Tester
Instant browser-based frontend playground with live preview, real-time error tracking, and responsive viewport toggles.
Online React Compiler (2026)
High-speed React JSX sandbox powered by instant live bundling. Test React components, hooks, and state in real-time.
Nursery Earnings Calculator
Custom vanilla JS financial projection tool built for automated yield and revenue calculation with dynamic parameters.
Core Web Vitals Estimator
Performance measurement tool mapping script execution overhead and layout shifts before deploying custom Shopify code.
JSON-LD Schema Engineering Tool
High-authority structured data builder for e-commerce products, technical blog posts, and local business rich snippets.
Need a Custom Interactive Tool or Calculator?
I design dynamic JavaScript tools tailored for your brand's business logic.