Optimus – WordPress Image Optimizer vs QuickWebP – WebP & AVIF Image Optimizer, Compression & SEO for WordPress

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

QuickWebP helps you optimize images in WordPress as soon as they are uploaded. It converts JPG and PNG files to WebP, compresses them locally without any external API, cleans filenames for better image SEO, pre-fills media metadata, and resizes oversized uploads automatically. If you want even smaller next-generation images, QuickWebP Pro adds AVIF conversion for supported servers. It is designed for faster pages, better Core Web Vitals, and a simpler image workflow inside the WordPress media library. QuickWebP Free vs Pro QuickWebP Free includes Automatic WebP conversion on upload Local image compression without any external API SEO-friendly filename cleanup Automatic image metadata pre-fill for alt text, caption, description, legend, and title Automatic resize with maximum width and height controls Uses the native WordPress image editor with the best available server backend Bulk optimization for older media when originals are preserved Clipboard paste support inside the WordPress media frame Optimization preview inside the settings screen ⭐️ QuickWebP Pro includes ⭐️ Everything included in QuickWebP Free AVIF conversion for supported servers with PHP 8.1+ Smaller files than JPG, PNG, and typically smaller than WebP 🚀 Unlock AVIF conversion and more with QuickWebP Pro: Upgrade now Important QuickWebP is also available inside WPMasterToolKit. If you prefer an all-in-one toolkit, install WPMasterToolKit and enable the Media Encoder module. If you want the dedicated QuickWebP experience and access to AVIF, discover QuickWebP Pro. Why site owners use QuickWebP Improve WordPress performance with lighter images Reduce page weight to help Core Web Vitals Keep image SEO cleaner with optimized filenames and metadata Convert and compress images directly on your server Manage image optimization from one simple settings page Demos How to install QuickWebP Paste a picture from the clipboard into WordPress media More from Webdeclic QuickWebP is developed by Webdeclic. If you want a broader WordPress toolbox, also check Webdeclic plugins. Support If you like QuickWebP, please leave a 5-star review on WordPress.org. If you want to support the project, you can do it here: Buy me a coffee