Configure Image Processing on Upload
A section-by-section reference for the Image Options screen: automatic processing, formats, conversion, replace schema, and the upload downscale feature.
Knowledge Base
Browse help articles, tutorials, and answers for common setup and optimization questions.
Settings & Configuration
Exclude Specific WordPress Image Sizes from Optimization
WordPress automatically creates multiple image sizes whenever you upload an image to the Media Library. Depending on your theme, plugins, and media settings, a single upload can generate…
Preserve or Strip EXIF Metadata
EXIF metadata contains information stored inside image files, such as camera settings, capture date, GPS coordinates, device information, orientation data, and other technical details. LessFlux allows you to…
Set the Minimum Log Level
LessFlux logs events during image and video processing. The minimum log level setting controls how much information is recorded in those logs. This setting is mainly used for…
Choose a Video Optimization Preset
LessFlux uses presets to control how videos are compressed. Instead of adjusting multiple technical parameters, you can select a preset that defines the balance between file size and…
Choose Which Video Formats LessFlux Should Process
LessFlux allows you to control which video formats are included in the optimization process. This helps you avoid unnecessary processing and ensures only relevant files are optimized. For…
Configure Video Processing on Upload
LessFlux can automatically optimize videos as soon as they are uploaded to your WordPress site. This removes the need for manual processing and ensures that large video files…
Use Inline Aspect Ratio for Lazy-Loaded Images
When lazy loading is enabled, images are not loaded immediately. This can cause layout shifts if space is not reserved in advance. The inline aspect ratio setting solves…
Enable or Disable LessFlux Lazy Loading
Lazy loading delays the loading of images until they are actually visible on the screen. LessFlux includes its own lazy loading system, which can be enabled or disabled…
Choose Which Image Formats LessFlux Should Process
LessFlux allows you to control which image formats are included in the optimization process. This helps you avoid unnecessary processing and focus only on the formats that matter…
Core Feature
Revert an Optimized File When Originals Are Kept
Undo optimization on any single file: where the revert button lives, what happens to your files in Duplicate and Replace modes, and how to re-optimize afterward.
Read the Optimization Logs and Diagnose File Results
Learn what the LessFlux Logs page and the per-file result table each show, how to read a log line, and how to trace a stuck or failed file…
Run Bulk Optimization for Existing Media Library Images
Existing Media Library files are not optimized automatically. Scan, filter, or select them in LessFlux Bulk Optimization and process them in the background.
Optimize New Images Automatically on Upload
LessFlux can automatically optimize new images as soon as they are uploaded to your WordPress Media Library. This helps keep your website lighter and faster without requiring manual…
Understand “Quota Exceeded” Results
When LessFlux marks a file as “Quota Exceeded”, it means the image or video was not processed because your available optimization quota has been fully used. This is…
Understand “No Need for Optimisation” Results
When LessFlux marks an image as “No need for optimisation”, it means the file was analyzed but no changes were applied. This is not an error. It is…
Understand Image Statuses in LessFlux
Each image processed by LessFlux has a status that shows what happened to it. These statuses are the most reliable way to understand whether optimization is working or…
Optimize Videos with LessFlux
Videos are one of the heaviest elements you can add to a website. Even a single unoptimized video can significantly slow down page load times and increase bandwidth…
How LessFlux Optimizes Images Externally
LessFlux does not optimize images directly on your WordPress server. Instead, it processes everything externally and returns optimized versions. This is one of the core differences compared to…
Getting Started
Understanding Tokens, Quotas, and Successful Optimizations
LessFlux uses a token-based system to track image and video optimizations. Understanding how tokens work will help you avoid unexpected limits and better estimate how many files your…
Where to Find Your LessFlux API Token
To connect your WordPress site to LessFlux, you need an API token. This token acts as the bridge between your website and your LessFlux account. Unlike other tools…
Recommended Settings for Most WordPress Websites
LessFlux is designed to work well with minimal configuration. For most websites, the default settings are already the best balance between performance, quality, and stability. This guide explains…
First-Time Setup Checklist for a New WordPress Site
After installing and connecting LessFlux, the next step is making sure everything is set up correctly so optimization actually runs as expected. This checklist walks you through the…
What LessFlux Does and When to Use It
LessFlux is a WordPress plugin that helps reduce the weight of your website by optimizing images, videos, and static assets, then delivering them efficiently through a CDN. Instead…