Who should use Modular Custom CSS?

Modular Custom CSS is a B2B2C product built for wordpress developers and designers.

Is Modular Custom CSS free?

Yes — Modular Custom CSS is free to use.

What platforms does Modular Custom CSS run on?

Modular Custom CSS runs on the web. It can also be self-hosted.

Is Modular Custom CSS still maintained?

Unverified. Modular Custom CSS has not been re-checked since it entered the index, so there is no finding either way — and only a positive finding would say otherwise.

What projects are similar to Modular Custom CSS?

Similar projects tracked by PulseGate include Multisite Custom CSS, Custom CSS Pro, and Modular Blocks Core.

Who develops Modular Custom CSS?

Modular Custom CSS is developed by Nick Halsey.

When did Modular Custom CSS launch?

Modular Custom CSS first shipped in 2014.

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Modular Custom CSS

Name: Modular Custom CSS
Author: Nick Halsey

wordpress.orgWeb & no-code builders

Modular Custom CSS extends the WordPress Customizer with a persistent plugin CSS option that applies regardless of the active theme. Changes are live-previewed instantly. It complements the core theme-specific Additional CSS feature and stores CSS as a site option. The plugin was created before core Additional CSS existed and continues to serve users needing global styles.

FreeWebSelf-hosted

Visit wordpress.org

Overview

4 features

In the Web & no-code builders space, Modular Custom CSS takes a focused approach. It focuses on managing CSS that needs to persist independently of the active theme on a WordPress site. It is built as a B2B2C product for wordpress developers and designers. Modular Custom CSS is free to use. It runs on the web, and it can be self-hosted.

It is developed by Nick Halsey, and it first shipped in 2014. Key capabilities include Global CSS, Customizer Integration, and Live Preview. The interface is available in English and Chinese.

Summary written by a language model from the project’s public pages.

Global CSS
Customizer Integration
Live Preview
Theme-independent

Built with & integrations

Runs on

BrowserSelf-hosted

Trust & compliance

Verified signals

HTTPSPrivacy PolicyFree tierMulti-language

Legal

Indexing history

What PulseGate has recorded for this listing

Indexed1 Aug · 22:47 UTC
Modular Custom CSS verified against its public source
Source: PulseGate · Open

Frequently asked questions about Modular Custom CSS

What is Modular Custom CSS?: Modular Custom CSS focuses on managing CSS that needs to persist independently of the active theme on a WordPress site. It is catalogued under Web & no-code builders on PulseGate.
Who should use Modular Custom CSS?: Modular Custom CSS is a B2B2C product built for wordpress developers and designers.
Is Modular Custom CSS free?: Yes — Modular Custom CSS is free to use.
What platforms does Modular Custom CSS run on?: Modular Custom CSS runs on the web. It can also be self-hosted.
Is Modular Custom CSS still maintained?: Unverified. Modular Custom CSS has not been re-checked since it entered the index, so there is no finding either way — and only a positive finding would say otherwise.
What projects are similar to Modular Custom CSS?: Similar projects tracked by PulseGate include Multisite Custom CSS, Custom CSS Pro, and Modular Blocks Core.Multisite Custom CSS Custom CSS Pro Modular Blocks Core
Who develops Modular Custom CSS?: Modular Custom CSS is developed by Nick Halsey.
When did Modular Custom CSS launch?: Modular Custom CSS first shipped in 2014.

At a glance

Pricing: Free
Platforms: Web
Languages: English, Chinese
First seen: 1 Aug 2026
Built for: wordpress developers and designers
Model: B2B2C
Solves: Managing CSS that needs to persist independently of the active theme on a WordPress site.

Registered as

WordPress.org: modular-custom-css

Developer

Nick Halsey

Live coverage

Identity confidence: High · 89
Indexed: 1 Aug 2026
Lifecycle: Alive
First seen: Aug 2026
Last seen: 1 Aug 2026

Identity audit (13)

Slug: modular-custom-css-wordpress-org
Lifecycle state recorded: 1 Aug 2026
Verification state: Indexed for public listing
Listing state: Listed: yes
Index status: Included in index
Latest evidence snapshot: 1 Aug 2026
Timeline basis: Indexed-at chronology (no inferred launch/funding milestones).
Name from: Written by a language model from the project's public pages.
Category from: Assigned by a language model.
Summary from: Written by a language model from public pages.
Languages from: Detected by a language model, checked against the page's own declaration.
Last updated: 4 Aug 2026
Canonical URL: https://wordpress.org/plugins/modular-custom-css

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