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Simple Mathjax vs KaTeX (2026)

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

Simple Mathjax

Simple Mathjax

4.7(13)

4.0K+ active installs

Free

Updated 6 months ago
View Simple Mathjax
VS
KaTeX

KaTeX

5(16)

2.0K+ active installs

Free

Updated 8 months ago
View KaTeX

Quick Verdict

As of April 2026, KaTeX has a higher user rating (5/5 from 16 reviews) while Simple Mathjax leads in active installations (4.0K+ vs 2.0K+). Both are free WordPress plugins. Simple Mathjax has accumulated 47K+ total downloads while KaTeX has 39K+.

Detailed Comparison

Rating
4.7/5Simple Mathjax
►
KaTeX5/5
Total Reviews
13Simple Mathjax
►
KaTeX16
Active Installs
4.0K+Simple Mathjax
◄
KaTeX2.0K+
Total Downloads
47K+Simple Mathjax
◄
KaTeX39K+
Support Resolution
N/ASimple Mathjax
KaTeX0%
Last Updated
6 months agoSimple Mathjax
◄
KaTeX8 months ago
First Released
2011Simple Mathjax
KaTeX2018
Age
15 yearsSimple Mathjax
KaTeX8 years
WP Requires
3.0+Simple Mathjax
KaTeX5.0+
PHP Requires
false+Simple Mathjax
KaTeX5.3+
Business Model
FreeSimple Mathjax
KaTeXFree
Latest Version
2.1.1Simple Mathjax
KaTeX2.2.5

Rating Breakdown

Simple Mathjax

4.7/5(13 reviews)
5
77%
4
15%
3
8%
2
0%
1
0%

KaTeX

5/5(16 reviews)
5
100%
4
0%
3
0%
2
0%
1
0%

Recent Reviews

Simple Mathjax Reviews

by wengs

Incompatible with WP version 6.7

The plugin is great, but it’s not compatible with WP6.7, I used math symbols in $xxx$ format in the text, and it still shows $xxx$, no change, it only shows the formula correctly when I use math symbo

by sebasmurgue

Excellent Plugin

This plugin has been very useful for our website. It simply works, and it works well. We have been able to add some customization (for example to number the equations) without problem. I highly recomm

by edwardw

Works as expected

Works as expected on 5.4.2!

KaTeX Reviews

by gkoper

Updates again

Thanks to Tom for reopening this plugin for updates. It must have been a chore to satisfy the “administrators” but the result is great. I have been using KaTeX all the time. WordPress complained about

by Difa

Rendering inline

Is it possible to render KaTeX for inline mode in a paragraph (Gutenberg preview)? Please consider this in next update. This topic was modified 2 years ago by Difa. This topic was modifi

by مرتضی رستگار

RTL equation in RTL websites!

This plugin have no options at all! and sets its direction by global direction that means RTL equations in RTL websites!

Frequently Asked Questions

Is Simple Mathjax or KaTeX more popular?
Simple Mathjax has 4.0K+ active installations while KaTeX has 2.0K+. Simple Mathjax is the more widely-used plugin as of April 2026.
Which has better ratings — Simple Mathjax or KaTeX?
Simple Mathjax has a 4.7/5 rating from 13 reviews, while KaTeX has a 5/5 rating from 16 reviews.
Are Simple Mathjax and KaTeX free?
Simple Mathjax is free and KaTeX is free. Both can be downloaded from the WordPress.org plugin directory.
Which plugin has better support — Simple Mathjax or KaTeX?
Support resolution data is not available for all plugins. Check each plugin's WordPress.org support forum for current response quality.
Which plugin is updated more frequently?
Simple Mathjax was last updated 6 months ago and KaTeX was last updated 8 months ago.

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