Rail selected: Sites

Launch, resume, or browse blueprints

Self-teaching state

Rail opens one pane. The seam shows how much room the live WordPress preview gets as the task changes.

Start a new Playground

Route-specific inputs are visible before boot, so every launch path explains itself.

Vanilla WordPress

Latest WordPress with the default Playground welcome page.

WordPress PR

Gutenberg PR / branch

From GitHub

{}

Blueprint URL

ZIP

Import .zip

Featured blueprints

Showing all 43 blueprints

Search and filters stay in the same Sites pane instead of opening another screen.

Your Playgrounds

Saved identity and consequence live in the Sites widget, not in a separate dashboard.

Unsaved Playground

Not saved to browser storage

Coffee Shop Demo

Saved yesterday · WooCommerce blueprint

Theme Test Lab

Saved May 17 · Gutenberg experiments

Plugin Debug Snapshot

Saved May 12 · logs retained

Site Manager

One secondary surface swaps the current tool. The live iframe stays beside it.

This is an Unsaved Playground. Your changes will be lost on page refresh.

WordPress Version Include older versions PHP Version Language Allow network access Create a multisite network

Applying these settings resets WordPress to its initial state.

File browser

▾ /wordpress

▸ wp-admin

▾ wp-content

▸ themes

▸ plugins

▸ wp-includes

□ index.php

□ wp-config.php

□ wp-load.php

/wordpress/wp-config.php

<?php
define( 'DB_NAME', 'database_name_here' );
define( 'DB_USER', 'username_here' );
define( 'DB_PASSWORD', 'password_here' );
define( 'DB_HOST', 'localhost' );

$table_prefix = 'wp_';

if ( ! defined( 'ABSPATH' ) ) {
    define( 'ABSPATH', __DIR__ . '/' );
}
require_once ABSPATH . 'wp-settings.php';

Blueprint editor

□ blueprint.json

□ landing.html

□ mu-plugin.php

/blueprint.json

{
  "$schema": "https://playground.wordpress.net/blueprint-schema.json",
  "meta": {
    "title": "Playground Welcome Landing Page",
    "description": "Landing page for WordPress Playground",
    "author": "fellyph"
  },
  "login": true,
  "landingPage": "/hello-from-playground/",
  "steps": [
    {
      "step": "runPHPWithOptions",
      "options": {
        "code": "<?php /* create welcome page */",
        "env": { "CONTENT": "<!-- wp:cover -->" }
      }
    }
  ],
  "preferredVersions": { "php": "8.3", "wp": "latest" }
}

Database management is an early access feature.
WordPress Playground emulates MySQL using SQLite. These tools are a work in progress and are exposed here for debugging.

SQLite database path: /wordpress/wp-content/database/.ht.sqlite · 452 KB

table

rows

size

updated

wp_posts

80 KB

10:18 UTC

wp_options

214

152 KB

10:18 UTC

wp_users

8 KB

10:17 UTC

wp_comments

12 KB

10:16 UTC

[21-May-2026 10:18:21 UTC] PHP Warning: file_get_contents(/wordpress/wp-admin/css/view-transitions.min.css): Failed to open stream: No such file or directory in /wordpress/wp-includes/view-transitions.php on line 2

[21-May-2026 10:18:20 UTC] PHP Notice: Function wp_maybe_inline_styles was called incorrectly. Unable to read the "path" key with value "/wordpress/wp-includes/css/dist/block-library/common.min.css".

[21-May-2026 10:18:20 UTC] PHP Notice: Function wp_maybe_inline_styles was called incorrectly. Unable to read the "path" key with value "/wordpress/wp-content/themes/twentytwentyfive/style.min.css".

[21-May-2026 10:18:19 UTC] PHP Debug: Blueprint step "runPHPWithOptions" completed in 442ms.

[21-May-2026 10:18:18 UTC] PHP Debug: WordPress loaded from OPFS mount /wordpress.

Settings are reachable from the rail and top chrome, but both open this same pane. There is one destructive path.

WordPress Version PHP Version Language Allow network access Create multisite network

Destructive confirmation shown below. Apply & Reset wipes this browser session before booting the selected runtime.

WMy WordPress WebsiteEdit Site0+ NewEdit PageHowdy, admin⌕

My WordPress Website

Hello from WordPress Playground!

This is Playground, a WordPress that runs client-side in your browser. It is perfect for training, demonstrating plugins and themes, and for testing purposes.

Note that you are logged-in as admin!
Thus, you can modify this site as you like: edit content, install plugins and play around.

Discover the mission behind Playground

Booting state

Running selected Playground

Mounting WordPress, applying blueprint steps, then returning focus to the live preview.

✓

Saved locally
This playground now appears in Your Playgrounds.