Optimus – WordPress Image Optimizer for WordPress Plugin Directory
By KeyCDN
Optimus – WordPress Image Optimizer is a WordPress app, with a 4.2 average rating from 69 reviews, as of Aug 31, 2026.
Optimus – WordPress Image Optimizer is a WordPress Plugin Directory app by KeyCDN. With a rating of 4.2★ from 69 reviews.
AppRanks verdict
Generated from live marketplace data — refreshed daily
Optimus – WordPress Image Optimizer is a well-rated WordPress app with a limited review volume. Category data on the canonical marketplace listing is currently incomplete, so AppRanks falls back to platform-wide rather than category-relative comparison for this listing. 69 reviews put it in the early-traction tier — useful for early-stage stores willing to be on the leading edge. Early-traction review counts are sensitive to single launch periods or feature events, so a 30-day re-check before bigger commitments often resolves whether the trend is sustained. Paid-only pricing means evaluating fit on the marketplace listing or via the developer's documentation before installing. AppRanks tracks rating, review count, pricing tier, and category position daily — the figures on this page reflect the most recent scrape from the canonical WordPress Plugin Directory listing.
Pros
- +Published by KeyCDN — established developer track record
Cons
- −Limited review base (69) — ratings can shift significantly with new feedback
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How Optimus – WordPress Image Optimizer works
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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 image—these savings contribute positively to the performance of the blog website. What’s most impressive about the compression technology: the quality of the images is maintained.
There are three different versions of Optimus:
Optimus (Free) as base version with limitations (e.g. max of 100kb)
Optimus HQ (Premium) with expanded functionality for personal projects
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
Keyword rankings
Optimus – WordPress Image Optimizer ranks for 2 keywords across WordPress Plugin Directory. Here are the top 2:
- Rank #519
- Rank #814
Competitors & alternatives
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Frequently asked questions
What is Optimus – WordPress Image Optimizer?
Optimus – WordPress Image Optimizer is an app for WordPress. It currently holds a 4.2-star rating from 69 merchant reviews, and AppRanks has been tracking its public marketplace data on the refresh cadence published in our methodology. AppRanks tracks its category position, review-velocity trend, and the top alternatives in the same space. Developed by KeyCDN.