Technology Aug 15, 2026 · 1 min read

How I Vibe-Coded a Fast Client-Side Word Counter Tool using AI

Hey DEV community! šŸ‘‹ I wanted to share a quick project I built using AI-assisted development (Vibe Coding): a lightweight, real-time Online Word Counter Tool. As an SEO specialist, I often need quick text analysis (word count, reading time, character limits). Instead of using bloated third-party...

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DEV Community
by Vo Viet Hoang
How I Vibe-Coded a Fast Client-Side Word Counter Tool using AI

Hey DEV community! šŸ‘‹

I wanted to share a quick project I built using AI-assisted development (Vibe Coding): a lightweight, real-time Online Word Counter Tool.

As an SEO specialist, I often need quick text analysis (word count, reading time, character limits). Instead of using bloated third-party sites, I decided to build one using pure JS/PHP with AI guidance.

šŸ’” Key Features Built:

  • Real-time word, character, sentence, and paragraph counting.
  • Estimated reading & speaking time calculations.
  • Clean, fast, and 100% client-side text processing.

šŸ› ļø What I Learned (Vibe Coding Perspective):

  • Regex handling: Fine-tuning word breaking algorithms for edge cases (hyphenated words, special symbols, multi-language characters).
  • DOM performance: Ensuring smooth typing without lag when processing large documents (>10,000 words).

šŸ”— Check it out & Feedback:

I’d love for you to try it out and let me know if you run into any bugs or have feature ideas!

šŸ‘‰ Live Demo: Online Word Counter Tool

Online Word Counter Tool

Feedback on UI/UX or code optimization is warmly welcomed! What micro-tools are you guys building with AI lately?

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This article was originally published by DEV Community and written by Vo Viet Hoang.

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