Bookmarklet CSS editor

Tiny tool. Sharp results.

CSS Yes!

Click -> Style -> Done

A fast little CSS editor for any webpage.

Click an element, tweak its styles, see the result instantly. No setup. No extensions. Just a bookmarklet.

Drag to bookmarks or click to launch on this page:

CSS Yes! Try live

No setup
Works on any page
Instant visual feedback

css-yes://editor-panel

.promo-card Selected element

Live edits appear right away, so experimenting feels fast instead of heavy.

Element picker .promo-card .button

CSS Yes! live

Selector .promo-card .button

Mode inline edit + preview

.promo-card .button {
  background: linear-gradient(135deg, #38bdf8, #22c55e);
  color: #020817;
  border-radius: 18px;
  padding: 14px 18px;
  box-shadow: 0 16px 40px rgba(56, 189, 248, 0.28);
}

Why this exists?.

Four small reasons this tool is handy in real work.

Sometimes you need to quickly change the look of a page.

Without DevTools. Just a quick way to change styles on the page and immediately see if the idea works.

CSS panel live

.promo-card {
  background: linear-gradient(135deg, #38bdf8, #22c55e);
  border-radius: 20px;
  padding: 18px 20px;
}

Edit the text too

txt

Need to test a headline, CTA, or tiny copy tweak in context? Pick the text block, change it, and keep the original version one clear action away.

Text editor saved

Join the beta
Ship quick page edits
without opening DevTools

Inline AI Assistant¹

assist

Describe a visual change in plain words. When you know the result you want but not the exact CSS, AI can suggest a fast starting point right inside the inline editor.

Prompt

Make this button feel more premium: darker glass background, softer glow, a little more radius.

AI Assistant:

.cta-button {
  background: linear-gradient(180deg, rgba(15,23,42,.88), rgba(30,41,59,.92));
  border-radius: 18px;
  box-shadow: 0 16px 38px rgba(56,189,248,.22);
}

And save the changes

You can come back to the same page later and continue from your saved edits instead of starting from zero again.

Features

Built for fast visual experiments.

Click any element on the page

Point, click, start styling.

Edit CSS visually

Quick tweaks without context switching.

Live preview

See the impact immediately.

CSS autocomplete

Move faster while writing declarations.

Smart selector picker

Get to the right target without the hunt.

Undo / redo history

Try things boldly and step back safely.

Text editing mode

Try copy changes right on the page and keep them saved locally.

Color picker

Grab color values without extra tools.

Box-model overlay

Understand layout spacing in context.

Inline AI assistant¹

Describe a change and get a CSS starting point.

Notes

A small personal tool built for quick CSS experiments.

If it happens to be useful for someone else, even better.

Free to use. Built with AI as part of a playful bookmarklet toolkit experiment.

1. Inline AI Assistant is an experimental feature. Its long-term usage model is not defined yet. It currently works while quota is available, and the way it will work later may change.

The bookmarklet itself does not act like a browser extension and does not install a persistent local app. It launches a client-side interface in the page, while the executable service logic required for AI requests is hosted on the server.

This tool is not intended to collect or resell page data. Still, when you use AI-powered features, the selected context and prompt may be sent to the server endpoint that powers the response. Do not use it on pages or content you should not transmit.

Use it at your own discretion. Generated CSS suggestions may be incorrect, incomplete, or unsuitable for production without review and testing.

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