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Open Source Libraries
Open infrastructure, ready to drop into your project.
Core libraries built and maintained publicly by Zeforc on npm — solving distinctly Vietnamese problems like the lunar calendar and payment QR codes, with clear docs and lean APIs.
LichTa (@lichta)
A Vietnamese lunar calendar conversion and calculation library with no external data dependency, running in both the browser and Node.js.
- Accurate solar-lunar conversion through the year 2100
- Auspicious hours and traditional good/bad day calculations
- Zero dependencies, small footprint
npm install @lichta/corev3.0.0
VietQR (@viet-qr)
A VietQR-standard payment QR toolkit, compatible with most banking apps and e-wallets in Vietnam.
- Generate EMVCo / VietQR-compliant codes in a few lines
- Continuously updated bank directory
- Export as SVG or PNG
npm install @viet-qr/corev1.3.1