September 20, 2023

Minify HTML Plugin

Minify HTML output for clean looking markup and faster downloading.

Try it out on a free dummy site here => https://demo.tastewp.com/minify-html-markup

Ever look at the HTML markup of your website and notice how sloppy and amateurish it looks? The Minify HTML plugin cleans up sloppy looking markup and minifies, which also speeds up download time.

Make your website’s markup look professional by using Minify HTML. Easy to use, simply install and activate (with additional options for advanced settings).

Minify HTML also has optional specialized minification for JavaScript and internal CSS. It doesn’t mess with your textareas or preformatted text.

Settings options to removes HTML, CSS and JavaScript comments (leaving MSIE conditional comments), remove unneeded XHTML closing tags from HTML5 void elements and remove unneeded relative schemes and domains from links.

Installation

For an automatic installation through WordPress:

Select Add New from the WordPress Plugins menu in the admin area.
Search for Minify HTML.
Click Install Now, then Activate Plugin.

For manual installation via FTP:

Upload the minify-html-markup folder to the /wp-content/plugins/ directory.
Activate the plugin from the Plugins screen in your WordPress admin area.

To upload the plugin through WordPress, instead of FTP:

From the Add New plugins page in your WordPress admin area, select the Upload Plugin button.
Select the minify-html-markup.zip file, click Install Now and Activate Plugin.

Screenshots

Minify HTML settings.
Minify HTML turns this...
To this!

FAQ

Are there any settings for Minify HTML?

Yes. Under the Settings menu in the admin console there’s a Minify HTML menu item which allows you to modify Minify HTML settings.

How does it work?

Magic, obviously! Actually, it creates an output buffer and then preforms its ‘magic’ on the output buffer. It kinda is like magic.

Will it break my stuff?

Normally, you won’t notice any changes to the way the site looks in the browser. However, if you rely on white space between HTML tags (which you shouldn’t be doing) you may notice very isolated elements with reduced horizontal spacing. This is because inline objects will add a few pixels of spacing if there’s whitespace between the objects. I consider Minify HTML a good way of finding these style ‘errors’ and correcting them with proper padding or margin style.

Is it fast?

Plenty. On my server that’s running dozens of websites, it takes 0.007 seconds to minify a page. Also, because the HTML file is smaller, it will speed up transfer and rendering times. Minify HTML doesn’t use bloated external libraries that add additional overhead and therefore take longer to process.

How much smaller will my HTML be?

With real-world test sites, the HTML file is around 20-25% smaller. Even when using deflate/gzip compression the resulting file is around 20% smaller, speeding up download times.

I’m using deflate/gzip to compress HTML, do I need Minify HTML?

With Minify HTML, the source HTML file will be smaller, therefore, it will compress faster and be even smaller once compressed. Also, even with deflate/gzip, your HTML markup will still look sloppy and amateurish. Minify HTML corrects this even for deflated/gzip transfers (and also saves another 20% in bandwidth).

Changelog

v2.1.9 – 9/20/2023

Resolve line break issues with inline javascript comments.

v2.1.8 – 2/25/2023

Nonce added to prevent CSRF vulnerability.

v2.1.7 – 2/25/2023

Nonce check removed, doesn’t seem to work.

v2.1.6 – 2/25/2023

Last try at nonce, doesn’t seem to work sometimes.

v2.1.5 – 2/25/2023

Now using a unique to plugin value for nonce for better security.

v2.1.4 – 2/25/2023

After some back and forth, I believe this implements CSRF protection correctly.

v2.1.3 – 2/25/2023

Resolved form POST issue.

v2.1.2 – 2/25/2023

Nonce verification for CSRF protection.

v2.1.1 – 2/24/2023

Added nonce for CSRF protection, verified working with WordPress v6.2

v2.02 – 1/3/2022

Added link to dummy site for testing, verified working with WordPress v5.8.2

v2.00 – 2/1/2021

Updated contact email address, verified working with WordPress v5.6

v1.99 – 05/21/2018

Compatiblity with WordPress thru 4.9.6
Text changes

v1.98 – 03/15/2017

Forces the multi-byte UTF-8 encoding option to default to OFF
Added support for WP-CLI (command line interface for WordPress) http://wp-cli.org/.

v1.97 – 03/06/2017

Added option to support multi-byte UTF-8 encoding if your foreign language website introduces odd characters.

v1.96 – 03/02/2017

Removed multi-byte non-English encoded content support because it caused problems with many English sites. Will make this an option instead in a future release.

v1.95 – 03/02/2017

Correctly deals with multi-byte UTF-8 encoded content (typically non-English language websites).

v1.94 – 01/03/2017

Added option to not minify JavaScript.

v1.93 – 12/28/2016

Removed extra blank lines after v1.92 modification.

v1.92 – 12/27/2016

Corrected rare problem with inline JavaScript line comments.

v1.91 – 6/29/2016

Fixed a problem with errors in the log and the “Remove schemes” switch not quite working correctly.

v1.9 – 5/10/2016

Broke up option to remove relative schemes and domains into two options.
Cleaned up settings page, gives option suggestions.

v1.8 – 5/10/2016

New Minify HTML Settings menu item in the admin console.
Option to deactivate Minify HTML without
Option to remove HTML, JavaScript and CSS comments.
Option to remove XHTML closing tags from HTML5 void elements.
Option to remove relative schemes and domains from links.

v1.7 – 4/21/2016

Now removes CSS and JavaScript comments.
Fixed issue with minification of internal CSS media queries.
Fixed issue with Google AMP reporting problems with the style boilerplate.
No longer minifies XML files (which Minify HTML was never designed to do).

v1.6 – 3/1/2016

Removes HTML comments to further reduce file size (doesn’t remove MSIE conditional comments).

v1.5 – 2/23/2016

No longer minifies the admin dashboard.
Some additional JavaScript minification.

v1.4 – 2/23/2016

Fixed bug that could cause ‘M1N1FY-ST4RT’ to output to website.

v1.3 – 2/22/2016

Added compatibility for PHP 7.0.0

v1.2 – 2/22/2016

Compatible with older versions of PHP.
More effective at cleaning up tabs, JavaScript, and internal CSS.
Cleaned up source code and made a few performance tweaks.

v1.1 – 2/19/2016

Also minifies internal CSS.

v1.0 – 2/18/2016

Initial release.