WP Coder – Insert & Manage Code Snippets vs Syntax-highlighting Code Block (with Server-side Rendering)

This plugin extends the Code block in WordPress core to add syntax highlighting which is rendered on the server. Pre-existing Code blocks on a site are automatically extended to include syntax highlighting. Doing server-side syntax highlighting eliminates the need to enqueue any JavaScript on the frontend (e.g. Highlight.js or Prism.js) and this ensures there is no flash of unhighlighted code (FOUC?). Reducing script on the frontend improves frontend performance, and it also allows for the syntax highlighted code to appear properly in AMP pages as rendered by the official AMP plugin (see also ampproject/amp-wp#972) or when JavaScript is turned off in the browser. This extended Code block uses language auto-detection to add syntax highlighting, but you can override the language in the block’s settings sidebar. (There is currently no syntax highlighting of the Code block in the editor, but see #8.) The plugin supports all programming languages that highlight.php supports (being a port of highlight.js). The Code block also is extended to support specifying lines to highlight which get marked up with mark elements (including in RSS feeds). There is also a checkbox for whether to show line numbers on the frontend (with the numbers being non-selectable). Lastly, given inconsistencies across themes regarding whether lines in a Code block should be wrapped, this plugin adds styling to force them to no-wrap by default, with a checkbox to opt in to wrapping when desired. For advanced usage, please see the plugin wiki. This plugin is developed on GitHub. See list of current issues with the plugin. Please feel free to file any additional issues or requests that you may come across. Pull requests are welcome. See contributing information. Credits This is a fork of Code Syntax Block by Marcus Kazmierczak (mkaz), which is also available on WordPress.org. Copyright (c) 2018 Marcus Kazmierczak. Licensed under GPL 2.0 or later. highlight.php is released under the BSD 3-Clause License. Copyright © 2006-2013, Ivan Sagalaev ([email protected]), highlight.js (original author). Copyright © 2013, Geert Bergman ([email protected]), highlight.php

Tired of editing theme files to add custom scripts or styles? WP Coder lets you insert custom HTML, CSS, JavaScript, and PHP snippets directly from your dashboard — no coding in theme files required. Gain full control and flexibility over your site. Documentation | Upgrade to Pro Why WP Coder? All-in-One Code Editor: Tabbed editor for HTML, CSS, JS & PHP with CodeMirror syntax highlighting. Gutenberg Block: Insert snippets directly in the block editor with live preview and custom attribute support. Shortcode Integration: Use [wp_code id="X"] to embed snippets anywhere. Live Preview: Instantly preview HTML & CSS without reloads in both the backend and Gutenberg. Performance Ready: Minify CSS/JS, obfuscate JavaScript, and control script loading with async / defer. Ideal For Developers: Test snippets, hooks, and debug quickly. Marketers: Insert tracking pixels, analytics, and ad scripts. Designers & Bloggers: Customize layouts, styles, and enhance engagement. Key Features Insert HTML, CSS, JS, and PHP via powerful shortcodes. Smart PHP handling: run in admin, front-end, everywhere, or only where inserted. Include external libraries (Google Fonts, CDN scripts & styles). Test Mode: Preview snippets safely before going live. Import/Export snippets and settings between sites. JavaScript Obfuscation: Protect your scripts with Dean Edwards’ Packer. Customizable Interface: Hide unused editor tabs (HTML, CSS, JS, etc.) for a cleaner workflow. NAV comments: Add inline navigation markers for faster code editing. Lightweight & secure — built for performance. Included Tools: Integrations Google Tag Manager (GTM) integration with user role controls. Google Analytics, Facebook Pixel, and Pinterest Pixel integration. Google AdSense integration with the option to disable ads for selected user roles. Content & Templates Markdown Editor – Disables Gutenberg and TinyMCE, replacing them with a Markdown editor powered by CodeMirror. Developer Tools Debug Log management (enable/disable and clear log). Show Page Debug Info – Display technical info for the current request in the Admin Bar (template, query type, object, body classes). Admins only. Theme Switcher – Quickly switch between installed themes directly from the admin bar. Included Snippets: Editor & Content Disable Gutenberg Editor Remove Gutenberg Block CSS Disable Widget Blocks Enable Shortcode Execution in Widgets Enable Excerpt for Pages Open External Links in New Tabs Change “Read More” Text Admin Interface Tweaks Disable Screen Options Tab Disable Welcome Panel Duplicate Posts Disable Admin Bar Login & User Access Disable Login Page Language Switcher Disable Login by Email Disable Admin Password Reset Emails Custom Login Logo Custom Login Redirect URLs Change Redirect After Login Change Redirect After Logout Media & Embeds Enable SVG Upload Force Lowercase Filenames Default ALT Text for Avatars Enable/Disable Lazy Load Disable Embeds Adjust oEmbed Max Dimensions Core Functionality Disable XML-RPC Disable REST API Disable Automatic Updates Disable Automatic Updates Emails Disable Emojis Disable Shortlinks Limit Post Revisions Comments & Feedback Disable Comments Globally Disable Comment URL Field Disable Self Pingbacks Disable Trackbacks & Pingbacks Disable HTML in Comments Limit Comment Length Cleanup & Optimization Remove WP Version Disable Attachment Pages Disable RSS Feeds Disable Built-in Search Disable wlwmanifest Link Disable Automatic Trash Emptying Redirect 404 to Homepage WP Coder simplifies your WordPress development workflow and makes customization safe, fast, and flexible! Get started today and simplify your WordPress development workflow with WP Coder! Quick Start Video Plugin Demo: Support Need help? Ask questions and get quick answers in our support center.