Description
The Simple Custom CSS and JS PRO addon adds an editor to SilkyPress for inserting CSS and JavaScript snippets through the WordPress dashboard, allowing you to apply custom code without modifying theme files. This additional module serves those who need to adjust the appearance, page behavior, and tracking scripts while keeping customizations organized in a dedicated administrative area.
Main Features of Simple Custom CSS and JS PRO
- Code editor
Centralizes CSS and JavaScript snippets in dashboard screens. - Theme-independent insertion
Applies customizations without directly editing active theme files. - Snippet organization
Separates custom code to make maintenance and review easier. - Loading control
Helps define where scripts and styles will be applied. - Administrative workflow
Keeps visual and behavioral adjustments accessible in WordPress.
Benefits of Simple Custom CSS and JS PRO
- Less manual editing
Reduces direct changes to sensitive theme files. - Clearer maintenance
Makes it easier to locate code used for specific site adjustments. - Controlled customization
Helps adapt pages without relying on structural changes. - More agile workflow
Saves time on CSS tests, scripts, and minor adjustments.
Who Is Simple Custom CSS and JS PRO For?
- Those who need to apply custom CSS to WordPress pages without modifying the theme.
- Teams that maintain sites with recurring layout, script, and visual behavior adjustments.
- Those who already use SilkyPress and want to centralize code customizations in the dashboard.
How to Download Simple Custom CSS and JS PRO
Simple Custom CSS and JS PRO is available for download here at Ultrapack. After downloading the .zip file, install it under Plugins > Add New > Upload Plugin, select the .zip file, and activate it. Keep SilkyPress installed to use the addon correctly.
Simple Custom CSS and JS PRO works as a practical layer for those who need to adjust WordPress sites with CSS and JavaScript without scattering changes throughout the theme. By centralizing snippets in a dedicated interface, the addon helps preserve organization, reduce rework, and keep customizations easier to review in projects that require frequent appearance and behavior adjustments.
Frequently asked questions
Is SilkyPress | Simple Custom CSS and JS PRO GPL-licensed?
Yes. SilkyPress | Simple Custom CSS and JS PRO is distributed under the GPL (GNU General Public License). You may legally use, modify and redistribute it on as many sites as you want.
Can I use SilkyPress | Simple Custom CSS and JS PRO on multiple sites?
Yes. You can install SilkyPress | Simple Custom CSS and JS PRO on as many sites as you want. Only automatic updates through Ultrapack Auto Updater have a limit: from 3 to 80 sites, depending on the plan.
How much does SilkyPress | Simple Custom CSS and JS PRO cost at Ultrapack?
SilkyPress | Simple Custom CSS and JS PRO costs US$2.99 as a single purchase, and it is also included in the subscription plans starting at US$12/mo (VIP I).
Does SilkyPress | Simple Custom CSS and JS PRO include updates?
Yes. The current version of SilkyPress | Simple Custom CSS and JS PRO is 4.41.1, published at Ultrapack on Oct 23, 2025. Subscribers update straight from the WordPress dashboard with UAU (Ultrapack Auto Updater).
Is SilkyPress | Simple Custom CSS and JS PRO scanned before publication?
Yes. Every version of SilkyPress | Simple Custom CSS and JS PRO goes through a malware scan (ClamAV and YARA rules, at UltraHub) before it is published.
What are the requirements for the plugin SilkyPress | Simple Custom CSS and JS PRO?
Requires WordPress 3.0.1 or higher and PHP 5.6 or higher. Tested up to WordPress 6.9.
What changed in this version
Version 4.41.1
- 10/20/2025
- Fix: PHP warning on multi-site WordPress installations
- Fix: preprocess the SASS/LESS custom codes intended for internal loading in the Block editor
Version 4.41
- Jun 10, 2025
- Tweak: update the CodeMirror library to the 5.65.20 version
- Fix: change the loading method in the Block editor to the recommended "enqueue_block_assets"
Version 4.40
- 02/19/2025
- Fix: the editor doesn't show up under certain conditions
- Fix: don't show the code excerpts in the list table, if the "Extended View" option is enabled for posts or pages
- Update the composer libraries
- Feature: add the "ccj_preprocessor_import_paths" filter for adding custom directory paths when importing SASS or LESS files
Version 4.39
- 11/15/2024
- Fix: add nuance for the "in Block editor" option for websites with WP before v6.6 and after
Version 4.38
- 09/25/2024
- Feature: add JS/CSS custom codes to the Block editor
- Fix: show the handle for resizing the editor along the height
Release notes published by the developer.
How to install
Automatic updates: this item is updated by the Ultrapack Auto Updater. With it installed, the new version shows up in your dashboard like any other WordPress update (how to set it up).
- Download the file
custom-css-js-pro.zip. - In the WordPress dashboard, go to Plugins > Add New > Upload Plugin.
- Select the file
custom-css-js-pro.zipand click Install Now. - Click Activate.
Requirements: Requires WordPress 3.0.1 or higher and PHP 5.6 or higher. Tested up to WordPress 6.9.
Stuck on a step? Open a ticket telling us which one you stopped at.

UAU Ready