After getting frustrated with constantly calculating tax-free prices and currency conversions while shopping for electronics in Japan, I built a simple tool to solve this.
What it does:
- Takes store price as input (e.g. ¥99,880 for DJI Osmo)
- Removes 10% consumption tax
- Converts to 170+ currencies using real-time rates
- Checks if the item meets the ¥5,000 minimum for tax-free
- Mobile-first design for in-store use
Tech stack:
- Frontend: React + Tailwind
- Currency API for real-time rates
- No backend needed, completely client-side
What it does: - Takes store price as input (e.g. ¥99,880 for DJI Osmo) - Removes 10% consumption tax - Converts to 170+ currencies using real-time rates - Checks if the item meets the ¥5,000 minimum for tax-free - Mobile-first design for in-store use
Tech stack: - Frontend: React + Tailwind - Currency API for real-time rates - No backend needed, completely client-side
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