PulseDev HTML/CSS coming soon

Fix HTML & CSS issues visually with AI

Click any element on your static site. Describe the fix. PulseDev's AI analyzes your HTML, CSS, and JavaScript — then writes production-ready code changes instantly.

Download Free for macOS View Setup Guide

Free tier available. No credit card required.

localhost:3000

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Ship pixel-perfect interfaces.

The fastest way to polish your front-end.

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Trusted by

10k+

99%

4.9

What is HTML/CSS?

No framework, no excuses. HTML/CSS bugs are still time sinks.

Pure HTML and CSS need no build tools, but debugging layout issues, responsive breakpoints, and cross-browser quirks still means endless DevTools toggling and manual edits.

PulseDev vs. the old way

How HTML/CSS developers fix UI issues — before and after PulseDev.

~20min

Legacy CSS fix

Inspecting elements, toggling styles, finding specificity conflicts, and testing across viewports — even simple CSS bugs waste time.

~1min

With PulseDev

Click the element, type the fix. PulseDev writes the HTML or CSS change and shows the result immediately.

20x

Faster iteration

PulseDev sees your live page and source files simultaneously. No framework overhead, instant fixes.

Install PulseDev

Download the PulseDev desktop app for macOS. No framework plugin required — PulseDev works with any static site out of the box.

Download PulseDev

Add PulseDev to your project

Add the PulseDev script to your HTML to enable visual debugging. No npm package required.

HTML

<!-- Add to your HTML <head> -->
<script src="https://cdn.pulsedev.app/widget.js"  data-project="YOUR_PROJECT_ID"  defer></script>

Open in PulseDev

Start the PulseDev server and add the widget script to your page. It will automatically detect your site and enable visual debugging.

terminal

$ pulsedev --port=3000

   → Site:    http://localhost:3000/
   → PulseDev: Visual debugging enabled
   → Status:   Element inspector active

How to use

Point & Inspect

Click any element on your site. PulseDev resolves the CSS selector, file path, and line number instantly — no DevTools needed.

Pin & Describe

Drop numbered pins on elements and describe fixes in plain English. Attach screenshots or Figma frames for visual reference.

AI Chat & Preview

Claude proposes code diffs in a sidebar chat. See changes live via hot reload. Iterate with follow-up instructions — uses your Claude subscription at zero extra cost.

Ship with Confidence

Review staged diffs, approve or reject per change. Create commits, open PRs, or roll back with one click. Nothing ships without your approval.

HTML/CSS-Specific Features

CSS Selector Resolution

PulseDev maps every element to its CSS selectors, specificity chain, and source file automatically.

Computed Styles Viewer

See the full cascade of applied styles for any element, including inherited and overridden rules.

Auto-Audit

PulseDev flags contrast, spacing, and accessibility issues automatically — even before you ask.

Zero Config

No plugins, no packages, no config files. Just serve your site and connect PulseDev.

Questions, answered.

Do I need a framework?

No! PulseDev works with plain HTML, CSS, and JavaScript. No framework or build tool required.

Which dev servers are supported?

Any local server works — npx serve, Live Server, Python http.server, PHP built-in server, or any other tool that serves on localhost.

Does it support CSS preprocessors?

Yes, PulseDev works with Sass, Less, PostCSS, and vanilla CSS.

Is there a performance overhead?

PulseDev only runs in development. It does not affect your production site.

Works with your stack

React Vue Astro Next.js Svelte WordPress Laravel Nuxt Solid Remix Eleventy Hugo Jekyll