Serious Slider vs Twenty20 Image Before-After (2026)
Detailed side-by-side comparison of two WordPress plugins, based on real-time data from WordPress.org.
Twenty20 Image Before-After
20K+ active installs
Free
Quick Verdict
As of April 2026, Twenty20 Image Before-After has a higher user rating (4/5 from 55 reviews) while Serious Slider leads in active installations (20K+ vs 20K+). Both are free WordPress plugins. Serious Slider has accumulated 502K+ total downloads while Twenty20 Image Before-After has 417K+.
Detailed Comparison
| Metric | Serious Slider | Twenty20 Image Before-After | |
|---|---|---|---|
| Rating | 3.4/5 | ► | 4/5 |
| Total Reviews | 8 | ► | 55 |
| Active Installs | 20K+ | 20K+ | |
| Total Downloads | 502K+ | ◄ | 417K+ |
| Support Resolution | N/A | N/A | |
| Last Updated | Yesterday | ◄ | 1 year ago |
| First Released | 2016 | 2016 | |
| Age | 10 years | 10 years | |
| WP Requires | 4.5+ | 5.9+ | |
| PHP Requires | 7.0+ | 5.6+ | |
| Business Model | Free | Free | |
| Latest Version | 1.3.1 | 2.0.4 |
Rating Breakdown
Serious Slider
Twenty20 Image Before-After
Download Trends
Over the past 30 days, Serious Slider averaged approximately 419 daily downloads while Twenty20 Image Before-After averaged 45.
Recent Reviews
Serious Slider Reviews
Everything ok!
Everything ok!
Thanks! Great plugin
It’s what I was looking for since cyclone slider. Simple, functional and free.
No good with Bootstrap!
WARNING: If your site or theme depends on the jQuery Bootstrap library, this plugin might not work correctly. There is no workaround. I could only get this plugin to work correctly by disabling Boot
Twenty20 Image Before-After Reviews
Great plugin, fast support
Great plugin, fast support, simple, easy to use.
No Longer Working
Type for an update or get pulled.
ブロックエディター未対応
恐らく、このプラグインはブロックエディターに対応していないので、Gutenbergでは画像が挿入できないです。 あと、lazyload.jsや”loading=lazy”を使用すると、表示されなくなったり画像下に空白ができてしまったりするバグがあるため、画像表示が崩れます。
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Frequently Asked Questions
Is Serious Slider or Twenty20 Image Before-After more popular?
Which has better ratings — Serious Slider or Twenty20 Image Before-After?
Are Serious Slider and Twenty20 Image Before-After free?
Which plugin has better support — Serious Slider or Twenty20 Image Before-After?
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Plugin data sourced from WordPress.org. Comparison and analysis by PluginSift.