Comprehensive image optimization with WebP, AVIF, Lazy Load, and more. Optimize images automatically for Faste...
Free
1M+ installs 4.8★ (1,838)
Opti MozJpeg Guetzli WebP
WordPress Opti MozJpeg Guetzli WebP - is the FREE plugin for high quality image optimization in WordPress website. It was created to meet latest requi …
The facts
- Rating
- 4.4★ from 7
- Active installs
- 90+
- Price
- Free
- Last updated
- 31 Jul 2018
- Added
- Dec 2017
- Requires WP
- 4.7
- Tested up to
- WP 4.9.31
- Requires PHP
- 5.4
- Downloads
- 7,505
Our analysis
AI-assistedOpti MozJpeg Guetzli WebP is a free WordPress plugin designed for high-quality image optimisation. It uses Mozilla MozJpeg, Google Guetzli, and Google WebP encoders to enhance image quality while meeting Google Pagespeed Insights requirements. The plugin can operate using a virtual machine for remote access to these encoders or utilise locally installed versions.
This plugin is suitable for WordPress users who want to improve their site's performance and SEO through effective image optimisation. It offers batch processing, automatic thumbnail generation, and the ability to revert changes, making it user-friendly for those looking to maintain image quality without degradation.
Best for: WordPress users looking to optimise images for better performance and SEO.
What it does well
- ✓Free to use from the WordPress.org directory
- ✓Utilises multiple advanced image encoders
- ✓Can create webp duplicates for compatible browsers
- ✓Offers batch optimisation and automatic thumbnail generation
- ✓Includes a revert option to restore original images
Where it falls short
- •Requires setup of a virtual machine for some features
- •Last updated in July 2018, may not be compatible with newer WordPress versions
- •Limited active installs (90) may indicate lower community support
Verdict
Opti MozJpeg Guetzli WebP provides a range of image optimisation features for free, but its reliance on a virtual machine may not suit all users. Consider your technical comfort level before installation.
From the developer
ihorsl's own description of Opti MozJpeg Guetzli WebP, lightly tidied.
WordPress Opti MozJpeg Guetzli WebP – is the FREE plugin for high quality image optimization in WordPress website. It was created to meet latest requirements of Google Pagespeed Insights. Google will “like” all your images after using this plugin, and you will expend $0 for that.
This plugin uses flowing image encoders: Mozilla MozJpeg, Google Guetzli and Google WebP. But don’t worry. There is no necessity to install them into your hosting. The plugin has built-in ssh client. It can access encoders remotely via ssh tunnel.
Plugin’s author created a virtual machine for Oracle VirtualBox. It contains Linux, ssh server and Mozilla MozJpeg, Google Guetzli and Google WebP. Simply run this virtual machine in your computer, establish ssh connection between the plugin and the virtual machine and optimize your images for free without any limitations.
Of course the plugin can use locally installed encoders too.
The plugin can create webp duplicates for all your images and serve them to webp compatible browsers. Lately Google Pagespeed changed the rules of the game. It wants now all images to be smaller then webp with quality 75 + 10%. And this plugin can do it for you.
The plugin can convert non alpha png images into jpeg. Automatically generates thumbnails and cleans not used thumbnail files.
All your images will be backed up before changing. You can run batch optimization many times, experiment with settings. And every time original images will be used as source. No quality degradation.
There is also the ability “Revert everything”. It can bring back the initial state of your images. All your images will be the same, as they were before this plugin use.
Please read this brief manual, before using the plugin.
The virtual machine with encoders is here
If you have difficulties with use of the virtual machine in your computer, you may try the plugin author’s free online server. Click here to read more.
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