Simple Custom CSS Plugin vs Prismatic (2026)
Detailed side-by-side comparison of two WordPress plugins, based on real-time data from WordPress.org.
Simple Custom CSS Plugin
100K+ active installs
Free
Quick Verdict
As of April 2026, Prismatic has a higher user rating (4.8/5 from 45 reviews) while Simple Custom CSS Plugin leads in active installations (100K+ vs 2.0K+). Both are free WordPress plugins. Simple Custom CSS Plugin has accumulated 3.1M+ total downloads while Prismatic has 119K+.
Detailed Comparison
| Metric | Simple Custom CSS Plugin | Prismatic | |
|---|---|---|---|
| Rating | 4.7/5 | ► | 4.8/5 |
| Total Reviews | 159 | ◄ | 45 |
| Active Installs | 100K+ | ◄ | 2.0K+ |
| Total Downloads | 3.1M+ | ◄ | 119K+ |
| Support Resolution | N/A | 100% | |
| Last Updated | 1 year ago | ► | 3 weeks ago |
| First Released | 2013 | 2016 | |
| Age | 13 years | 10 years | |
| WP Requires | 3.0.1+ | 4.7+ | |
| PHP Requires | false+ | 5.6.20+ | |
| Business Model | Free | Free | |
| Latest Version | 4.0.7 | 3.7.4 |
Rating Breakdown
Simple Custom CSS Plugin
Prismatic
Download Trends
Over the past 30 days, Simple Custom CSS Plugin averaged approximately 261 daily downloads while Prismatic averaged 118.
Recent Reviews
Simple Custom CSS Plugin Reviews
Blocks Media view
This plugin block me from viewing my media files when I am, for instance, trying to add an image block to a page. Except for this I think it is an excellent plugin. My work-around will be to disable t
So simple yet works perfect!
İt’s so easy to use and does the job as described.
Useful but doesn’t know modern properties
Simple and useful, but modern CSS properties like clamp(), repeat(), margin-inline, or less common units like dvh throw syntax errors. For beginners, this can be really confusing.
Prismatic Reviews
Great syntax highlighter and great updating of the plugin!
It was hard to find a code syntax highlighter that was compatible with my version (latest) of WP. This plugin works great! Now I have nice looking code blocks on my front end. This developer obvious
Nothing happens
WordPress 6.7.1, maybe that’s the problem. Added the /prismatic, inserted code, choosed language in block settings. Nada. Very frustrating.
Excellent Plugin
Easy to use
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Frequently Asked Questions
Is Simple Custom CSS Plugin or Prismatic more popular?
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Plugin data sourced from WordPress.org. Comparison and analysis by PluginSift.