DEV3 Number to Words Converter — Source Code (React + Tailwind)

Source code of the DEV3 Number to Words Converter, a number-to-words converter for the international and Indian lakh/crore systems with currency wording for cheques, using BigInt for exact large numbers.

Download: buy a licence and the ZIP is waiting in Account → Downloads. Try it live: https://dev3.tech/tools/number-to-words-converter shows the finished tool running.

What is in the download

• A standalone Vite + React + TypeScript + Tailwind CSS project: src/tool holds the tool, shared pieces sit beside it
• package.json with exact versions plus a lockfile, so npm ci works
• README.md (run, build, embed in Next.js or plain React) and an MIT LICENSE

What the code does

• International and Indian grouping up to 21 digits
• Cheque-style wording with major and minor currency units
• Title, sentence, lower and upper case plus British "and"
• Ordinal words for small integers

Tech stack

React 19, TypeScript, Vite, Tailwind CSS 4.

Install and customise

The How to install and How to use tabs list the steps. In short: unzip, npm ci, npm run dev, then copy the tool folder into your own app if you want to embed it.

Good to know

• A browser-only tool: there is no backend or database in the code.