Fast, private, single-file HTML applications engineered with zero runtime dependencies. Run directly in your browser or install as offline PWAs.
Select a tool to launch in browser or download the standalone HTML.
Mobile-first grocery buy-list with package unit-price normalization ($/kg, $/L, $/ea), purchase ledger, and in-aisle deal intelligence.
Comprehensive housing decision engine comparing buying vs. renting net worth projections, opportunity cost sweeps, and sensitivity analysis.
Advanced compound savings simulation with salary escalation, multi-tier fixed deposits, inflation forecasting, and capital accumulation.
Mobile-first standalone PWA habit tracker with mathematical streak/consistency models, 52-week calendar heatmaps, and offline IndexedDB persistence.
Mobile-first standalone PWA for deliberate English shadowing, synchronized dual subtitles (.srt), instant hotkey looping, and color-coded vocabulary acquisition.
All calculations, simulation projections, and purchase records reside exclusively in your browser's storage. No telemetry, no accounts, zero cloud leaks.
Equipped with service workers and web manifests. Install onto home screens or desktop docks and use seamlessly without an internet connection.
Packaged as single-file HTML deliverables with inlined or purged assets. No npm runtime dependencies or server-side runtimes required to serve.