Vietnamese Money Number to Text Converter: Đổi tiền số sang chữ Tiếng Việt.

The N2vi.js "Vietnamese Money Number to Text Converter" is a lightweight, zero-dependency JavaScript library that converts integer values into their full Vietnamese word representation. It correctly handles all the special linguistic rules of Vietnamese numbering (“lăm”, “mốt”, “lẻ”, etc.), supports arbitrary-length numbers, and can optionally append a currency unit.

Key Features

• ✅ Framework-agnostic UMD bundle (works in Node.js and browsers)
• 🔢 Converts any non-negative integer to Vietnamese words
• 💬 Handles linguistic nuances:
  • “lăm” for units digit 5 after tens
  • “mốt” for units digit 1 after twenty
  • “lẻ” for zero in the tens place
• 💸 Optional currency suffix (e.g. đồng, USD)
• 🎯 Minimal, readable codebase (~100 lines)

USAGE:

string = to_vietnamese(10000);  \\"mười nghìn đồng"
string = to_vietnamese("324000"); \\"ba trăm hai mươi bốn nghìn đồng"
to_vietnamese('921200120000') \\ "chín trăm hai mươi mốt tỉ hai trăm triệu một trăm hai mươi nghìn đồng"

DEMO

https://hankphung.github.io/numer_to_vietnamese_text/

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Authored by Dong Hung Phung. MIT License.