PluginSift

Autoptimize vs Seraphinite Accelerator (2026)

Detailed side-by-side comparison of two WordPress plugins, based on real-time data from WordPress.org.

Autoptimize

Autoptimize

4.7(1,424)

900K+ active installs

Free

Updated 3 weeks ago
View Autoptimize
VS
Seraphinite Accelerator

Seraphinite Accelerator

4.8(473)

60K+ active installs

Free

Updated Yesterday
View Seraphinite Accelerator

Quick Verdict

As of April 2026, Seraphinite Accelerator has a higher user rating (4.8/5 from 473 reviews) while Autoptimize leads in active installations (900K+ vs 60K+). Both are free WordPress plugins. Autoptimize has accumulated 43M+ total downloads while Seraphinite Accelerator has 822K+. Autoptimize has a higher support resolution rate (40% vs 0%).

Detailed Comparison

Rating
4.7/5Autoptimize
►
Seraphinite Accelerator4.8/5
Total Reviews
1,424Autoptimize
◄
Seraphinite Accelerator473
Active Installs
900K+Autoptimize
◄
Seraphinite Accelerator60K+
Total Downloads
43M+Autoptimize
◄
Seraphinite Accelerator822K+
Support Resolution
40%Autoptimize
◄
Seraphinite Accelerator0%
Last Updated
3 weeks agoAutoptimize
►
Seraphinite AcceleratorYesterday
First Released
2009Autoptimize
Seraphinite Accelerator2021
Age
17 yearsAutoptimize
Seraphinite Accelerator5 years
WP Requires
5.3+Autoptimize
Seraphinite Accelerator4.5+
PHP Requires
7.1+Autoptimize
Seraphinite Accelerator7.1+
Business Model
FreeAutoptimize
Seraphinite AcceleratorFree
Latest Version
3.1.15Autoptimize
Seraphinite Accelerator2.29.2

Rating Breakdown

Autoptimize

4.7/5(1,424 reviews)
5
90%
4
2%
3
1%
2
1%
1
5%

Seraphinite Accelerator

4.8/5(473 reviews)
5
93%
4
1%
3
1%
2
1%
1
4%

Recent Reviews

Autoptimize Reviews

by uniqf0x

avoid

causes critical error, also no way to deactivate or remove without it crippling my wp site. don’t use it.

by kkrajk

Injects Malware.

Not one but this happened twice in about 6 months across 2 sites. This topic was modified 1 week, 6 days ago by kkrajk.

by davo342

Mala idea adquirir la versión PRO

Pague la versión PRO, y realmente fue un desastre, mi web tuvo constantes caídas, excesiva cantidad de cache, problemas con el CSS, realmente fue una perdida de dinero en el Plugin

Seraphinite Accelerator Reviews

by kafdagi3462

Muhteşem bir eklenti

Eklentiyi indirdim kurdum. SONUÇ: Performans: % 99 Erişebilirlik: %99 En iyi uygulamalar %100 Seo: %100 çok heyacanlıyım. ilk defa bütün değerler yeşil oldu. Eklentiyi kim yaptıysa son

by serg1991my

500 Merchant

I have encountered a problem: Google Merchant Center has started rejecting my products, supposedly due to a 500 error, even though my server is very powerful.

by sreekanthglog

Excellent Customer Support and Noticable Speed

We discovered the Serpentine Accelerator plugin online and were genuinely impressed by the quality of their support. Even while using the free version, the support team was extremely helpful and guide

Frequently Asked Questions

Is Autoptimize or Seraphinite Accelerator more popular?
Autoptimize has 900K+ active installations while Seraphinite Accelerator has 60K+. Autoptimize is the more widely-used plugin as of April 2026.
Which has better ratings — Autoptimize or Seraphinite Accelerator?
Autoptimize has a 4.7/5 rating from 1,424 reviews, while Seraphinite Accelerator has a 4.8/5 rating from 473 reviews.
Are Autoptimize and Seraphinite Accelerator free?
Autoptimize is free and Seraphinite Accelerator is free. Both can be downloaded from the WordPress.org plugin directory.
Which plugin has better support — Autoptimize or Seraphinite Accelerator?
As of April 2026, Autoptimize has a 40% support resolution rate while Seraphinite Accelerator has a 0% rate.
Which plugin is updated more frequently?
Autoptimize was last updated 3 weeks ago and Seraphinite Accelerator was last updated Yesterday.

Plugin data sourced from WordPress.org. Comparison and analysis by PluginSift.