Extensions inspire

Live editor for CSS, Less & Sass - Magic CSS




Developer Tools






September 25, 2019

Webstore Link:

Developer's site:


Run this extension and start writing your CSS/Less/Sass code which gets applied immediately. The code you write will be saved in your browser's local storage at site level.

* Live editor for CSS/Less/Sass code - Preview changes as you write code
* Option to reapply styles automatically
* Syntax Highlighting
* Auto-generate CSS selectors with point-and-click
* Autocomplete for CSS selectors, properties and values
* Emmet support helps in quickly expanding abbreviations to CSS code (https://docs.emmet.io/css-abbreviations/)
* Color picker (supports HEX, RGB, RGBA, HSL and HSLA)
* Convert code from Less/Sass to CSS
* Beautify / Format code
* Minify code
* Highlight DOM elements matching the CSS selectors
* CSS reloader
* Option to load this extension in iframes as well
* Lint CSS code

Open source:
* https://github.com/webextensions/live-css-editor

This extension is available for:
* Google Chrome
* Microsoft Edge
* Mozilla Firefox
* Opera

Visit https://webextensions.org/ for further details

Created by:
* Priyank Parashar

* No need to refresh pages to test your CSS/Less/Sass code
* Speed-up development and testing of your styling code by doing it directly on your page
* Develop and test your code before finalizing your changes into the project files
* Apply some temporary styles (like hiding some components)
* Reload CSS resources without refreshing the page
* Test styling changes even when you cannot modify the original source code

* The CSS/Less/Sass code you write gets applied as you write it
* The Sass parser is loaded remotely from https://cdnjs.cloudflare.com/ajax/libs/sass.js/...
* With this styling code tester, you can develop and test the code at the same time
* The code is saved in browser as soon as you write it
* The code editor is resizable and draggable
* The code you write is auto-saved at site level and can be used again for same or different pages
* You can use "TAB" key to indent your code
* Running Magic CSS again, while it is already loaded, will restore it to its original position and size
* Press "Esc" or click on close to hide it and run it again to continue making changes
* The code you write is added at the bottom of the <body> tag of the active page
* It includes CSS/Less/Sass beautifier
* It includes CSS minifier
* It highlights the DOM elements matching the CSS selectors
* Use it along with your favorite Chrome/Edge/Firefox/Opera Developer tools
* You might find it useful in creating your custom themes for websites based on Stylish / Stylist
* This extension was previously known as "MagiCSS - Live CSS Editor"

Credits for open source code used by this extension:
* Amplify JS
* Browserify
* Code Mirror
* codemirror-colorpicker by easylogic @ GitHub
* Emmet codemirror-plugin by emmetio @ GitHub
* CSS Pretty
* CSSLint
* jQuery
* jQuery UI
* jQuery UI Touch Punch
* Less
* Mozilla Source Map
* Tooltipster

* "Auto-generate CSS selectors with point-and-click" feature is partly inspired by the Chrome extensions SelectorGadget and Stylebot

Connect to us at:
* https://webextensions.org/
* https://github.com/webextensions/live-css-editor
* https://twitter.com/webextensions
* Priyank Parashar - https://linkedin.com/in/ParasharPriyank/

Top Extensions


What has inspired us?

Extore is a team of professionals who are passionate about creating extensions for web browsers. This devotion also gives us opportunity to appreciate work of other people. We get inspired by useful, open source extensions made by developers all over the world. Our strong belief is that one should share helpful add-ons with others. That’s why we’d like to present you our ever-growing list of favourite extensions that have inspired us. Moreover, as you probably have already learned, sometimes struggling for the best brings an end to the good. Talking about add-ons it often turns out that an upgrade is worse then previous version. Also it can become really tricky to get back to the beloved version of your favourite extension. That’s why we’re going to make not only the latest, but all versions of our favourite (and we hope yours too) add-ons available for download. No more compromises, just stick to the version you really like!