jquery.landing Open editor

library/jquery

A jQuery Online Editor with a Live DOM Preview

Select elements, chain jQuery methods and wire up events, and watch the DOM update in a live preview as you type, with nothing to install.

Open the jQuery editor Why it still fits
coreselect + chain
previewlive DOM
loadsjQuery from CDN/npm
installnone
main.js
$('.card').on('click', function () {
  $(this)
    .toggleClass('active')
    .find('.badge')
    .fadeToggle(150);
});

$('#search').on('input', function () {
  const q = $(this).val().toLowerCase();
  $('.card').hide().filter((_, el) =>
    $(el).text().toLowerCase().includes(q)).show();
});
jquery · DOM updating live

01 platform

Why jQuery is still worth an editor in 2026

jQuery is unfashionable and everywhere at once — a large share of the web still ships it, and plenty of tutorials and legacy code assume it. A place to run a snippet, test a plugin or learn the syntax is genuinely useful, whatever the trend says.

  • It is on more sites than not

    A great deal of production code still uses jQuery. Being able to reproduce a bug, test a selector or try a plugin without standing up a project is worth having.

  • The syntax is the appeal

    $('.x').addClass('y').fadeIn() — select, then chain. Terse DOM work is why jQuery stuck around, and it reads clearly in a live editor.

  • Real jQuery, real DOM

    jQuery loads and runs against the preview's real DOM, so selectors, events and effects behave exactly as they would on a page.

  • A project, not a snippet

    Keep HTML, CSS and scripts in a real tree, add a plugin, and commit with Git — more than a single-box playground when you need it.

02 deep dive

Select, chain and manipulate the DOM

The core of jQuery is one idea — select a set of elements, then act on all of them — and the editor shows the result in the preview as you go.

Selectors find the set. $('.card') is every matching element, and the methods that follow apply to all of them, so you rarely write a loop to touch a group of nodes.

Chaining reads top to bottom. .addClass().find().fadeToggle() runs left to right on the set, so a sequence of DOM changes is one readable statement rather than several.

Traversal moves around the tree. .find, .closest, .parent and .filter walk from a selection to a related one, which is most of what DOM work actually is.

select
$('.card')
chain
.addClass().fadeIn()
traverse
find, closest, filter
set-based
acts on all matches
chain.js
$('.item')
  .filter('.done')
  .css('opacity', 0.5)
  .find('.check')
  .text('done');
one statement, whole set

03 features

What ships with a jQuery project

Everything below is on the moment you open the jQuery editor, which starts as a filterable photo gallery — selectors, chaining and effects in one small app.

  • jQuery, loaded for you

    jQuery is available from the CDN, and any jQuery plugin resolves from npm through esm.sh, so $ works and plugins load with no node_modules.

  • A live DOM preview

    The script runs against the preview's real DOM, so a class toggle, an effect or a filtered list updates in front of you.

  • HTML and CSS beside it

    Keep the markup and styles in the project, so a jQuery script has a real page to act on rather than an abstract snippet.

  • The VS Code engine

    Monaco with multi-cursor, find-and-replace and the command palette — handy for the repetitive edits jQuery code tends to have.

  • A console beside the page

    console.log, warnings and errors print next to the preview, so a selector that matched nothing is easy to catch.

  • Git and export

    Commit through isomorphic-git and export the project as a zip of plain HTML, CSS and JS — no lock-in.

04 deep dive

Events, AJAX and effects, the jQuery way

Beyond selecting and styling, jQuery's other three jobs — events, requests and animation — are what most snippets are about, and they run here directly.

Events with delegation. .on('click', '.item', fn) handles clicks on current and future elements, which is why jQuery event code survives adding nodes to the page later.

AJAX in a line. $.getJSON(url) and $.ajax make a request and hand you the result, so a snippet that fetches and renders data works in the preview against a real network call.

Effects without keyframes. .fadeIn, .slideToggle and .animate cover the small animations jQuery is often kept around for, and they play in the live DOM as you edit.

events
.on(), delegation
ajax
$.getJSON, $.ajax
effects
fadeIn, slideToggle
plugins
via npm
events.js
$('#list').on('click', '.row', function () {
  $(this).addClass('selected').siblings().removeClass('selected');
});

$.getJSON('./data.json', (rows) => {
  rows.forEach((r) => $('#list').append(`<li>${r.name}</li>`));
});
delegated event + fetch

05 workflow

From a selector to a filtered gallery

No install, no bundler, no dev server — the whole loop from a first selector to a working, filterable interface.

jquery-gallery — xcodx
  • new project → jQuery Gallery
  • created index.html, main.js · $ ready
  • wire #search input → filter .card
  • preview: gallery filters as you type
  • add .fadeToggle on card click
  • DOM updates live · effect plays
  • git commit -m "filter + toggle"
  • [main 6b21e9f] filter + toggle · 3 files

  • Nothing to set up

    jQuery is loaded and the DOM is live — the snippet runs the moment you save, which is exactly what testing jQuery calls for.

  • The same loop on a tablet

    It runs client-side, so a tablet runs the script the same way a laptop does, with nothing installed.

  • Reproduce a bug fast

    Paste a legacy snippet, give it markup, and see what it does — the quickest way to understand or fix old jQuery.

06 ecosystem

jQuery among the web technologies

jQuery is one of many things the editor runs — the same tab runs a legacy snippet, a modern framework and plain JavaScript, per file.

  • React
  • Vue
  • Angular
  • Svelte
  • SolidJS
  • Lit
  • HTMX
  • Vite
  • TypeScript
  • JavaScript
  • HTML
  • CSS
  • SCSS
  • Less
  • Pug
  • Tailwind
  • Bootstrap
  • Vuetify
  • Ant Design
  • shadcn/ui
  • Phaser
  • Node.js
  • Python
  • Java
  • C++
  • C#
  • Go
  • Rust
  • Ruby
  • PHP
  • Kotlin
  • Swift
  • SQL
  • Bash

07 languages

What the editor runs beside jQuery

A jQuery script sits beside everything else the editor compiles in the browser, renders natively, or runs on demand.

Compiled in your browser11

Zero build step. Transform runs on a Web Worker, so typing never blocks.

  • JSX
  • TSX
  • TypeScript
  • Vue SFC
  • Svelte
  • Angular (JIT)
  • SolidJS
  • SCSS
  • Sass
  • Less
  • Pug

Rendered natively8

Straight to the live preview, no transform in the way.

  • HTML
  • CSS
  • JavaScript
  • JSON
  • Markdown
  • Jupyter (.ipynb)
  • SVG
  • YAML

Executed on demand22

70+ languages run through a self-hosted Piston engine. stdout, stderr, images and tracebacks land in the console.

  • Python
  • Java
  • C
  • C++
  • C#
  • Go
  • Rust
  • Ruby
  • PHP
  • Kotlin
  • Swift
  • Lua
  • Scala
  • Perl
  • Haskell
  • Elixir
  • Dart
  • R
  • Julia
  • SQLite
  • Bash
  • PowerShell

08 questions

jQuery in the browser — common questions

Do I need to install anything to run jQuery?

No. jQuery is loaded for you and $ is ready when the editor opens, so a snippet runs against the live DOM with no build, no dev server and no node_modules. jQuery plugins resolve from npm through esm.sh when you need them.

Does the DOM update live as I edit?

Yes. The script runs against the preview's real DOM, so a class toggle, a filter or an effect updates in front of you the moment you save — which is the point of a jQuery editor.

Can I test a jQuery plugin here?

Yes. Install the plugin from the npm panel and it resolves through esm.sh, so you can try a carousel, a date picker or a validation plugin against real markup without setting up a project.

Can I reproduce a bug from legacy code?

Yes, and it is one of the best uses. Paste the snippet, give it the HTML it expects, and watch what it does in the live preview — the fastest way to understand or fix jQuery you inherited.

Does AJAX work in the editor?

Yes. $.getJSON and $.ajax make real requests from the preview, so a snippet that fetches data and renders it works here, subject to the usual browser CORS rules of the endpoint you call.

Can I keep HTML, CSS and jQuery in one project?

Yes. Projects are multi-file, so the markup, styles and script live together with a file tree and tabs, and the whole thing commits with Git and exports as plain HTML, CSS and JS.

Do I need to install anything to use XCODX Studio?

No. XCODX Studio is a browser-based IDE — the editor, the compilers and the preview all run client-side. There is no download, no package manager to set up and no configuration file to write. Opening the editor is the whole setup step.

Where is my code stored?

In your own browser. Projects, file history and Git objects live in local storage on your device and are never uploaded to a server. That also means XCODX works offline: it is a Progressive Web App, so you can install it and keep coding with no connection.

Is XCODX Studio free?

Yes. The editor, the live preview, the 70+ language runtimes, npm installs, Git and the integrated terminal are all free to use.

Can I use XCODX on a tablet or Chromebook?

Yes. The editor is a responsive web app, so a Chromebook, an iPad or an Android tablet gets the same compilers and the same preview a laptop does — there is no desktop-only build, because there is no build to install at all. The layout adapts to the screen rather than shrinking a desktop UI into it.

Can I export a project or move it to my own machine?

Yes. Export the whole project as a zip with its folder structure intact and open it locally, or commit it and push. It is ordinary source on disk from that point on — no proprietary format and no lock-in, which is also why importing an existing repository from GitHub works the same way in reverse.

Nothing to install

Open the jQuery editor now

A working, filterable interface on screen in under a minute — live DOM, jQuery ready, with no account wall and nothing to install.

Open the jQuery editor Browse the docs