all templates
Web Basics

Character Counter

A tweet-style box that counts down and warns you before you run out.

Type into a text box and watch a live counter — and a little progress ring — react. It turns amber near the limit, red past it, and disables the button when you've gone over. Live feedback, visualized.

What's inside

  • Live remaining-characters count on every keystroke
  • Amber / red warnings as you approach the limit
  • Post button disables when you're over
  • A tiny SVG progress ring driven by the count
  • Light & dark mode, no dependencies

Quickstart

$ git clone https://github.com/devai-io/devai_boilerplates.git$ cd devai_boilerplates/char-counter$ open index.html   # or just double-click the file

Browse the code

The full source, exactly as it ships in the repo.

loading…
Download .zip
loading tree…

about this tutorial

A devai.io starter tutorial — turning a number into live, visual feedback.