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  1. Home
  2. Plugins
  3. Font Size
  4. Zeno Font Resizer
Zeno Font Resizer icon

Zeno Font Resizer

Zeno Font Resizer allows the visitors of your website to change the font size of your text.

By Marcel Pol·Font Size·Free
4.6(20 reviews)
·6.0K+ active installs·Updated 2 months ago
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As of April 2026, Zeno Font Resizer is a WordPress font size plugin with 6.0K+ active installations and a 4.6/5 rating from 20 reviews. It has been downloaded 120K+ times in total. Requires WordPress 4.1+ and PHP 7.0+. Available on WordPress.org since 2015. Recently updated within the last 3 months. Downloads are up 17% this week. Top alternative: Accessibility Font Resizer.

4.6/520 reviews
6.0K+active installs
120K+total downloads
11 yearssince 2015

Overview

This plugin allows you to give the visitors of your site the option to change the font size of your text.

Features:

  • Uses JavaScript and jQuery to set the fontsize.
  • Settings are saved in a cookie, so the visitor sees the same fontsize on a revisit.
  • Admin page to set which content is being resized, the resize steps and other options.
  • There is a classic widget.
  • Alternatively, you can add PHP code to a template in your theme, preferably a child theme.
  • Simple and Lightweight.

This plugin is a fork of font-resizer with many bugfixes applied and features added.

Compatibility

This plugin is compatible with ClassicPress.

Contributions

This plugin is also available in Codeberg.

Read full description on WordPress.org

Screenshots

Ratings & Reviews

4.620 reviews
5 ★
16
4 ★
2
3 ★
1
2 ★
0
1 ★
1

Recent Reviews

Great & Simple
by bociakrodyl·2 years ago

Super simple, plugin does the job very well! Thanks!

The plugin also has helpful settings and its own shortcode.

Need a way to target multiple CSS tags
by trparky·3 years ago·5 replies

I need a way to target multiple CSS targets. My template has two CSS classes that have content in them, I need to target both.

almost perfect!
by codifies·5 years ago·4 replies

I injected the PHP fragment using the plugin

Head, Footer and Post Injections

In the “posts” / “just before content”, section, it works like a charm enabling my users to actually see a theme that is genuinely responsive, so many that claim to be responsive, break up words, when they just shouldn’t. Giving the end user the ability to choose their own font size genuinely makes my current theme much more responsive, regardless of which client, OS or guess of both my site thinks its being rendered on…

My only one teeny gripe, I’d love to be able to put a simple label just before the triple A that’s used to adjust the font size, while it should be configurable, I think I’d go for something like “For your comfort please do change the font size:” (the triple A is nicely centered with the content so there is plenty of room for a label)

Good solid working plugin, just does what it says, the only complication is how you inject it, but then there is even available a short code plugin for it.

I wanted an option I wouldn’t forget to add to each post (I don’t like side bars – messes with responsiveness) So injecting it with another plugin just works like a charm – but do be careful with injections, get it wrong and you might need to ftp in and disable the plugin, but then with anything that modifies a theme on the fly, that can always happen.

This is quite an Amazing Plugin.
by MrsJessicaSimpson·5 years ago

So much so, ..

That I’ve incorporated it into my site and heavily hacked it with header messages and pretty href links, which also means that I’ll never be able to upgrade it without taking the code apart.
But it really is worth the trouble.

The plugin is so simple to work, and it gives your users such a powerful tool in viewing your amusing ditties, (well I think they’re amusing), and now the users can’t moan that the font size is too small or too big; they can now set the text size that they are comfortable in reading.

Seriously, click on the aAA widget and the text inside the DIVs gets bigger or smaller, with even the cookies being taken care of, and what that means: is it’s prefect for theme developers to play with.

There are other options for non-themers to get the text to grown or shrink.

User side wise: there is a short-code version, and also a PHP hack to put it wherever you want on your site, but I just physically worked it into my sidebar.

Highly recommended.

10/10 – Thank You!
by Chris·5 years ago

Does it’s job perfectly, had to tweak the defaults a little but will be adding to all my WooCommerce / WP sites… Thank you for sharing your work!

Download Trends

Today: 16Yesterday: 28This week: 125Period total: 13K

Compatibility

WordPress4.1+ requiredTested up to 6.9.4
PHP7.0+ required

Version Adoption

v1.8
83.1%
v1.7
16.6%
v1.6
0.3%

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Frequently Asked Questions

Changelog

1.8.2

  • 2025-07-18
  • Sanitize settings correctly.
  • Remove option for ownid, doesn’t work with sanitizing.
View full changelog on WordPress.org

Contributors

Marcel PolMarcel Pol
Plugin Info
Version
1.8.2
Last Updated
Jan 10, 2026
WP Requires
4.1+
Tested Up To
6.9.4
PHP Requires
7.0+
Active Installs
6.0K+
Downloads
120K+
Added
May 22, 2015
Business
Free

Tags

font sizetext sizefont resizertext resizeraccessibility

Developer

M
Marcel Pol
18 plugins0.1M+ total installs
View all plugins →

Quick Compare

Zeno Font Resizer vs Accessibility Font Resizer→Zeno Font Resizer vs Font Size→Zeno Font Resizer vs WP-Font-Resizer→

Plugin data sourced from WordPress.org. Analysis and metrics by PluginSift.