DEV3 Free Word and Character Counter — Source Code (React + Tailwind)

Source code of the DEV3 Word and Character Counter, a text analyser that counts words, characters, sentences and reading time, ranks keyword density and checks text against common length limits.

Free download: sign in to any DEV3 account and click Download ZIP. Try it live: https://dev3.tech/tools/word-counter 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

• Grapheme-aware character counting
• Silent-reading and speaking time at set words-per-minute speeds
• Keyword density with stop-word filtering
• Length checks for social posts, meta tags and SMS

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.