Optimus – WordPress Image Optimizer

Wordpress Plugin
Download latest - 1.6.2

Developers

keycdn
sergej.mueller

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WordPress Image Optimizer

Optimus reduces the file size of uploaded media files automatically. Depending on the image and format, reductions in size of up to 70% are possible. Several kilobytes can be saved per imagethese savings contribute positively to the performance of the blog website. Whats most impressive about the compression technology: the quality of the images is maintained.

There are three different versions of Optimus:

  1. Optimus (Free) as base version with limitations (e.g. max of 100kb)
  2. Optimus HQ (Premium) with expanded functionality for personal projects
  3. Optimus HQ PRO (Premium) as professional solution for customer websites

More details about the features and the pricing model on optimus.io

How does it work?

During the uploading process of images to the media library, the Optimus plugin simultaneously sends the images to the Optimus server, where the incoming material is processed and sent back in optimized form. Afterwards, the Optimus plugin saves the image version with a reduced file size in the media library.

The optimization of images - including thumbnails - is conducted in the background and outside of the view of the user. The image compression gains per file are displayed by Optimus within the media library in form of a percentage value, see screenshot.

Superfluous information that is saved by image processing programs and is not even necessary for displaying the image is extracted from image files. This way, the quality of the graphics remains intact while the image size can be reduced significantly. If you wish, Optimus keeps all author, EXIF and copyright information contained within the photos the compressional gains will be correspondingly lower.

Optimus supports the conversion of images to the new WebP image format.

It is recommended to use the WordPress Cache Enabler plugin to integrate the converted WebP images.

Features

  • Progressive JPEGs
  • Reduction of file size during the upload
  • Optimization of all preview images of a photo
  • No adjustments to code necessary
  • Optional: no removal of EXIF and IPTC metadata
  • Optional: HTTPS connection for the image transfer (Optimus HQ)
  • Optional: conversion to the WebP image format (Optimus HQ)
  • Faster load times for blog pages
  • Support for WooCommerce
  • WordPress multisite-support
  • Bulk optimization (optimize existing images)

Privacy

  • After the image optimization and transfer process, the Optimus server immediately deletes all the temporarily stored files. No files are stored!
  • The Optimus servers are located in Germany.

Tips

  • Photos should always be saved as JPEGs rather than PNGs. The PNG format works well for illustrations, JPEG on the other hand is the right choice for photographs. Another reason: the size reduction always works more quickly for JPEGs.
  • Your images have been optimized using Desktop tools such as ImageOptim (Mac) or PNGGauntlet (Win) before you upload them? Optimus has the significant benefit of also minimizing the thumbnails (=preview images) created by WordPress. After all, themes almost always integrate thumbnails rather than original images.

System Requirements

  • PHP >=5.6
  • WordPress >=4.6
  • Allow outbound connections

Storage Utilization

  • Backend: ~ 0,19 MB
  • Frontend: ~ 0,01 MB

Website

  • optimus.io

Author

  • KeyCDN

Releases (21 )

Version Release Date Change Log
1.6.2 2022-05-31
  • Compatibility for WordPress 6.0
1.6.1 2021-05-28
  • Fix bulk image optimization (#13 @tg247)
1.6.0 2018-09-02
  • Skip missing files
  • Added wpcli command for bulk optimization
  • Added option to append instead of replace file extension for webp files
1.5.0 2018-04-10
  • Unsupported image types are now gracefully skipped
  • Renamed setting names and greyed out inapplicable settings to avoid confusion
  • Increased size limit for Optimus HQ to 10MB
  • Licences can now easily be extended
  • Optimize images uploaded through the REST API
1.4.9 2017-08-11
  • Formatting updates
1.4.8 2017-01-20
  • Improved the handling of 204 errors
  • Removed language files
1.4.7 2016-09-21
  • Improved the bulk optimizer
1.4.6 2016-06-01
  • Added support for WP Retina 2x
1.4.5 2016-01-18
  • Optimization to avoid conflicts with other plugins or themes
1.4.4 2015-12-16
  • Fixed static function warning in PHP 5.6
1.4.3 2015-11-29
  • Increased timeout value to 180 seconds
1.4.2 2015-11-04
  • Allow to generate WebP images on already optimzed images (bulk optimizer)
1.4.1 2015-10-12
  • Improve bulk optimization error handling
1.4.0 2015-09-22
  • Added PNG in the free version and the manual optimization setting
1.3.9 2015-07-06
  • Bug fixing and activation update
1.3.8 2015-07-04
  • Bulk optimization feature
1.3.7 2015-06-16
  • Erhhung der Limits fr alle Formate
  • Limits auf optimus.io
1.3.6 2015-01-08
  • Neue Option: Keine Optimierung der Originalbilder
  • Korrektur: Lschung der WebP-Bilder im AJAX-Modus
  • Ausfhrlich auf Google+
1.3.5 2014-11-01
  • Erhhung des Limits fr PNG-Dateien auf 512 KB (Optimus HQ)
1.3.3 2014-06-27
  • Kompatibilitt zu WooCommerce
  • Einfhrung von Optimus HQ PRO
  • Ausfhrlich auf Google+
1.3.1 2014-04-21
  • Anpassung fr WordPress 3.9: Sicherstellung der Bildoptimierung im WordPress-Editor