Ultimate Customizer
The most complete theme builder for HighLevel agencies. Restyle your whole white-label CRM and login page from inside the CRM, with live preview.
20 prebuilt themes
One click restyles the whole CRM — colors, sidebar, fonts, animations and login page — from neon dark to clean light.
212+ settings
Every color, glow, blur, radius, font, speed and size, section by section.
Login page designer
Split or centered layouts, background image, logo frame, animated network, custom heading and tagline.
Live animations
Interactive particle networks, click ripples, glowing tabs, animated banner and loader.
Sidebar menu editor
Reorder, rename and hide menu items for agency and sub-account views.
Instant, live saving
Edit inside your CRM with live preview. Changes save automatically and reach every user.
Prebuilt themes
Every theme can be fine-tuned afterwards.
How it works
- Install the app from the HighLevel Marketplace as an agency admin.
- Paste two snippets into Agency Settings → Company → Custom CSS and Custom JS.
- Connect your CRM domain from the profile menu, then open Ultimate Customizer and design.
Check a license
Enter an agency Company ID (Agency Settings → Company) to see if it is licensed.
Support
We’re here to help with installation, design questions, billing and anything else.
Email: idylle_radieuse@outlook.com
We usually reply within one business day. Please include your Company ID, your CRM domain, and a screenshot or short description of the issue.
Email supportQuick answers
The menu item doesn’t appear. Only agency admins see it. Open your profile menu once the page has loaded. Make sure both snippets are saved.
The theme isn’t showing. Open the profile menu and click Connect Ultimate Customizer to connect this domain. See troubleshooting.
Can I use it on another agency? No. Each purchase is licensed to one HighLevel Company ID. See the Terms.