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Watch Radar no. 100 · Quiet

Simple Custom CSS

By John Regan

What it does: Adds custom CSS to a site from the admin area.

Why it’s listed: No update for 19 months, with one listed contributor. WordPress also has its own place for custom CSS. Before you remove it, copy its CSS into the Additional CSS panel, or into the Styles editor on a block theme.

View on WordPress.org ↗ Checked Reviewed by Abhishek Deshpande

Active installs
100k+
Last updated
2025-03-11
Tested up to
6.7.11
Rating
4.7 / 5 (159)
Version
4.0.7
Maintainers
1

Is Simple Custom CSS still maintained?

It has gone between one and two years without an update. That is an early sign, not a reason to move yet.

Quiet: No update for over a year.

Placements are our opinion, based on public evidence. Risk here means a plugin may not get a fix if a problem appears. It doesn’t mean we found a flaw, unless we show an advisory. Going quiet alone never puts a plugin in Replace now.

Updates No release since 2025-03-11. That was 1 yr 8 mo before our check. WordPress.org plugin directory · checked 2026-10-31
Compatibility Tested up to WordPress 6.7.11. WordPress 7.1.4 was current on 2026-10-31. WordPress.org plugin directory · checked 2026-10-31
Security No public advisories found. A quiet record is not proof of safety. wpvulnerability.net · checked 2026-10-31
Reviews The latest 10 reviews average 4.3 stars, against 4.7 overall. 1 of them gave 1 or 2 stars. Newest activity: 2026-01-28. We see no negative trend. WordPress.org reviews · checked 2026-10-31
Maintainers 1 listed contributor. No recent support threads. WordPress.org plugin directory · checked 2026-10-31
Usage 8,583 downloads in the last 30 days, including updates. 93.63% of sites run version 4.0. WordPress.org stats · checked 2026-10-31

What to do next

If your CSS is short, try one of the alternatives below.

Alternatives to Simple Custom CSS to consider

Additional CSS ↗

Add CSS in the WordPress Customizer or Site Editor.

No extra plugin needed

Simple Custom CSS and JS ↗

Manage CSS and JavaScript snippets.

600k+ installs · 4.4 stars · Updated 2026-10-08 · Tested 7.1.4

WPCode ↗

Manage code snippets from one screen.

3M+ installs · 4.9 stars · Updated 2026-10-29 · Tested 7.1.4

Each listed plugin was updated in the last six months, is tested with WordPress 7.0 or newer, and had no open advisory in WPVulnerability when we checked. We have not tried them ourselves. No one pays to appear here.

Latest reviews

Dates show last activity. Titles are written by WordPress.org users.

Also on this radar: Custom code

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